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magnum/src/Magnum/Shaders/PhongGL.cpp

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/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
2020, 2021, 2022, 2023, 2024
Vladimír Vondruš <mosra@centrum.cz>
Copyright © 2020 Jonathan Hale <squareys@googlemail.com>
Copyright © 2022 Vladislav Oleshko <vladislav.oleshko@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include "PhongGL.h"
#if defined(MAGNUM_TARGET_GLES) || defined(MAGNUM_BUILD_DEPRECATED)
#include <Corrade/Containers/Array.h>
#endif
#include <Corrade/Containers/EnumSet.hpp>
#include <Corrade/Containers/Iterable.h>
#include <Corrade/Containers/String.h>
#include <Corrade/Utility/Format.h>
#include <Corrade/Utility/Resource.h>
#include "Magnum/GL/Context.h"
#include "Magnum/GL/Extensions.h"
#include "Magnum/GL/Shader.h"
#include "Magnum/GL/Texture.h"
#include "Magnum/Math/Color.h"
#include "Magnum/Math/Matrix3.h"
#include "Magnum/Math/Matrix4.h"
#ifndef MAGNUM_TARGET_GLES2
#include "Magnum/GL/Buffer.h"
#include "Magnum/GL/TextureArray.h"
#endif
#ifdef MAGNUM_BUILD_STATIC
static void importShaderResources() {
CORRADE_RESOURCE_INITIALIZE(MagnumShaders_RESOURCES_GL)
}
#endif
namespace Magnum { namespace Shaders {
using namespace Containers::Literals;
namespace {
enum: Int {
AmbientTextureUnit = 0,
DiffuseTextureUnit = 1,
SpecularTextureUnit = 2,
NormalTextureUnit = 3,
/* 4 taken by MeshVisualizer colormap */
ObjectIdTextureUnit = 5 /* shared with Flat and MeshVisualizer */
};
#ifndef MAGNUM_TARGET_GLES2
enum: Int {
/* Projection, transformation, texture transformation and joints is
slots 0, 1, 3, 6 in all shaders so shaders can be switched without
rebinding everything */
ProjectionBufferBinding = 0,
TransformationBufferBinding = 1,
DrawBufferBinding = 2,
TextureTransformationBufferBinding = 3,
MaterialBufferBinding = 4,
LightBufferBinding = 5,
JointBufferBinding = 6,
};
#endif
}
PhongGL::CompileState PhongGL::compile(const Configuration& configuration) {
#ifndef CORRADE_NO_ASSERT
{
const bool textureTransformationNotEnabledOrTextured = !(configuration.flags() & Flag::TextureTransformation) || (configuration.flags() & (Flag::AmbientTexture|Flag::DiffuseTexture|Flag::SpecularTexture|Flag::NormalTexture))
#ifndef MAGNUM_TARGET_GLES2
|| configuration.flags() >= Flag::ObjectIdTexture
#endif
;
CORRADE_ASSERT(textureTransformationNotEnabledOrTextured,
"Shaders::PhongGL: texture transformation enabled but the shader is not textured", CompileState{NoCreate});
}
#endif
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(configuration.flags() >= Flag::InstancedObjectId) || !(configuration.flags() & Flag::Bitangent),
"Shaders::PhongGL: Bitangent attribute binding conflicts with the ObjectId attribute, use a Tangent4 attribute with instanced object ID rendering instead", CompileState{NoCreate});
#endif
#ifndef CORRADE_NO_ASSERT
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(!(configuration.flags() >= Flag::ShaderStorageBuffers))
#endif
{
CORRADE_ASSERT(configuration.perDrawLightCount() <= configuration.lightCount(),
"Shaders::PhongGL: per-draw light count expected to not be larger than total count of" << configuration.lightCount() << Debug::nospace << ", got" << configuration.perDrawLightCount(), CompileState{NoCreate});
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!configuration.jointCount() == (!configuration.perVertexJointCount() && !configuration.secondaryPerVertexJointCount()),
"Shaders::PhongGL: joint count can't be zero if per-vertex joint count is non-zero", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() >= Flag::UniformBuffers) || configuration.materialCount(),
"Shaders::PhongGL: material count can't be zero", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() >= Flag::UniformBuffers) || configuration.drawCount(),
"Shaders::PhongGL: draw count can't be zero", CompileState{NoCreate});
#endif
}
#endif
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(configuration.flags() & Flag::TextureArrays) || (configuration.flags() & (Flag::AmbientTexture|Flag::DiffuseTexture|Flag::SpecularTexture|Flag::NormalTexture)) || configuration.flags() >= Flag::ObjectIdTexture,
"Shaders::PhongGL: texture arrays enabled but the shader is not textured", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() & Flag::UniformBuffers) || !(configuration.flags() & Flag::TextureArrays) || configuration.flags() >= (Flag::TextureArrays|Flag::TextureTransformation),
"Shaders::PhongGL: texture arrays require texture transformation enabled as well if uniform buffers are used", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() & Flag::LightCulling) || (configuration.flags() & Flag::UniformBuffers),
"Shaders::PhongGL: light culling requires uniform buffers to be enabled", CompileState{NoCreate});
#endif
CORRADE_ASSERT(!(configuration.flags() & Flag::SpecularTexture) || !(configuration.flags() & (Flag::NoSpecular)),
"Shaders::PhongGL: specular texture requires the shader to not have specular disabled", CompileState{NoCreate});
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(configuration.flags() & Flag::DynamicPerVertexJointCount) || (configuration.perVertexJointCount() || configuration.secondaryPerVertexJointCount()),
"Shaders::PhongGL: dynamic per-vertex joint count enabled for zero joints", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() & Flag::InstancedTransformation) || !configuration.secondaryPerVertexJointCount(),
"Shaders::PhongGL: TransformationMatrix attribute binding conflicts with the SecondaryJointIds / SecondaryWeights attributes, use a non-instanced rendering with secondary weights instead", CompileState{NoCreate});
#endif
#ifndef MAGNUM_TARGET_GLES
if(configuration.flags() >= Flag::ObjectId)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::EXT::gpu_shader4);
if(configuration.flags() >= Flag::UniformBuffers)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::uniform_buffer_object);
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(configuration.flags() >= Flag::ShaderStorageBuffers) {
#ifndef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::shader_storage_buffer_object);
#else
MAGNUM_ASSERT_GL_VERSION_SUPPORTED(GL::Version::GLES310);
#endif
}
#endif
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() >= Flag::MultiDraw) {
#ifndef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::shader_draw_parameters);
#elif !defined(MAGNUM_TARGET_WEBGL)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ANGLE::multi_draw);
#else
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::WEBGL::multi_draw);
#endif
}
#endif
#ifndef MAGNUM_TARGET_GLES
if(configuration.flags() >= Flag::TextureArrays)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::EXT::texture_array);
#endif
#ifdef MAGNUM_BUILD_STATIC
/* Import resources on static build, if not already */
if(!Utility::Resource::hasGroup("MagnumShadersGL"_s))
importShaderResources();
#endif
Utility::Resource rs("MagnumShadersGL"_s);
const GL::Context& context = GL::Context::current();
#ifndef MAGNUM_TARGET_GLES
const GL::Version version = context.supportedVersion({GL::Version::GL320, GL::Version::GL310, GL::Version::GL300, GL::Version::GL210});
#else
const GL::Version version = context.supportedVersion({
#ifndef MAGNUM_TARGET_WEBGL
GL::Version::GLES310,
#endif
GL::Version::GLES300, GL::Version::GLES200});
#endif
PhongGL out{NoInit};
out._flags = configuration.flags();
out._lightCount = configuration.lightCount();
out._perDrawLightCount = configuration.perDrawLightCount();
#ifndef MAGNUM_TARGET_GLES2
out._jointCount = configuration.jointCount();
out._perVertexJointCount = configuration.perVertexJointCount();
out._secondaryPerVertexJointCount = configuration.secondaryPerVertexJointCount();
out._materialCount = configuration.materialCount();
out._drawCount = configuration.drawCount();
#endif
out._lightColorsUniform = out._lightPositionsUniform + Int(configuration.lightCount());
out._lightSpecularColorsUniform = out._lightColorsUniform + Int(configuration.lightCount());
out._lightRangesUniform = out._lightSpecularColorsUniform + Int(configuration.lightCount());
#ifndef MAGNUM_TARGET_GLES2
out._jointMatricesUniform = out._lightRangesUniform + Int(configuration.lightCount());
out._perInstanceJointCountUniform = out._jointMatricesUniform + configuration.jointCount();
out._perVertexJointCountUniform = configuration.flags() >= Flag::UniformBuffers ?
1 : out._perInstanceJointCountUniform + 1;
#endif
#ifndef MAGNUM_TARGET_GLES
/* Initializer for the light color / position / range arrays -- we need a
list of initializers joined by commas. For GLES we'll simply upload the
values directly. */
Containers::String lightInitializer;
if(!(configuration.flags() >= Flag::UniformBuffers) && configuration.lightCount())
lightInitializer = Utility::format(
"#define LIGHT_POSITION_INITIALIZER {}\n"
"#define LIGHT_COLOR_INITIALIZER {}\n"
"#define LIGHT_RANGE_INITIALIZER {}\n",
("vec4(0.0, 0.0, 1.0, 0.0), "_s*configuration.lightCount()).exceptSuffix(2),
("vec3(1.0), "_s*configuration.lightCount()).exceptSuffix(2),
/* While 1.0/0.0 works on certain drivers such as Mesa and produces
+inf, on NVidia it produces a NaN. Working around it by making
the divisor non-zero. The PhongGLTest::renderLights() then
verifies that both the default and explicitly passed
Constants::pi() give the same result. */
("1.0/0.000000000000000000000001, "_s*configuration.lightCount()).exceptSuffix(2));
#endif
GL::Shader vert{version, GL::Shader::Type::Vertex};
vert.addSource(rs.getString("compatibility.glsl"_s))
.addSource((configuration.flags() & (Flag::AmbientTexture|Flag::DiffuseTexture|Flag::SpecularTexture|Flag::NormalTexture)
#ifndef MAGNUM_TARGET_GLES2
|| configuration.flags() >= Flag::ObjectIdTexture
#endif
) ? "#define TEXTURED\n"_s : ""_s)
.addSource(configuration.flags() & Flag::NormalTexture ? "#define NORMAL_TEXTURE\n"_s : ""_s)
.addSource(configuration.flags() & Flag::Bitangent ? "#define BITANGENT\n"_s : ""_s)
.addSource(configuration.flags() & Flag::VertexColor ? "#define VERTEX_COLOR\n"_s : ""_s)
.addSource(configuration.flags() & Flag::TextureTransformation ? "#define TEXTURE_TRANSFORMATION\n"_s : ""_s)
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() & Flag::TextureArrays ? "#define TEXTURE_ARRAYS\n"_s : ""_s)
#endif
.addSource(configuration.perDrawLightCount() ? "#define HAS_LIGHTS\n"_s : ""_s)
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() >= Flag::InstancedObjectId ? "#define INSTANCED_OBJECT_ID\n"_s : ""_s)
#endif
.addSource(configuration.flags() & Flag::InstancedTransformation ? "#define INSTANCED_TRANSFORMATION\n"_s : ""_s)
.addSource(configuration.flags() >= Flag::InstancedTextureOffset ? "#define INSTANCED_TEXTURE_OFFSET\n"_s : ""_s);
#ifndef MAGNUM_TARGET_GLES2
if(configuration.perVertexJointCount() || configuration.secondaryPerVertexJointCount()) {
#ifndef MAGNUM_TARGET_WEBGL
/* The _LOCATION are needed only in the non-UBO case if explicit
uniform location (desktop / ES3.1) is supported, and _INITIALIZER is
desktop-only, so don't even have this branch on WebGL. OTOH,
branching on explicit uniform location support and adding just the
_INITIALIZER if not wouldn't really save much (have to format()
anyway), so passing them always. */
if(!(configuration.flags() >= Flag::UniformBuffers)) {
vert.addSource(Utility::format(
"#define JOINT_COUNT {}\n"
"#define PER_VERTEX_JOINT_COUNT {}u\n"
"#define SECONDARY_PER_VERTEX_JOINT_COUNT {}u\n"
"#define JOINT_MATRICES_LOCATION {}\n"
#ifndef MAGNUM_TARGET_GLES
"#define JOINT_MATRIX_INITIALIZER {}\n"
#endif
"#define PER_INSTANCE_JOINT_COUNT_LOCATION {}\n",
configuration.jointCount(),
configuration.perVertexJointCount(),
configuration.secondaryPerVertexJointCount(),
out._jointMatricesUniform,
#ifndef MAGNUM_TARGET_GLES
("mat4(1.0), "_s*configuration.jointCount()).exceptSuffix(2),
#endif
out._perInstanceJointCountUniform));
} else
#endif
{
vert.addSource(Utility::format(
/* SSBOs have an unbounded joints array */
#ifndef MAGNUM_TARGET_WEBGL
configuration.flags() >= Flag::ShaderStorageBuffers ?
"#define PER_VERTEX_JOINT_COUNT {1}u\n"
"#define SECONDARY_PER_VERTEX_JOINT_COUNT {2}u\n" :
#endif
"#define JOINT_COUNT {}\n"
"#define PER_VERTEX_JOINT_COUNT {1}u\n"
"#define SECONDARY_PER_VERTEX_JOINT_COUNT {2}u\n",
configuration.jointCount(),
configuration.perVertexJointCount(),
configuration.secondaryPerVertexJointCount()));
}
}
if(configuration.flags() >= Flag::DynamicPerVertexJointCount) {
#ifndef MAGNUM_TARGET_WEBGL
/* The _LOCATION is needed only if explicit uniform location (desktop /
ES3.1) is supported, a plain string can be added otherwise. This is
an immediate uniform also in the UBO / SSBO case. */
#ifndef MAGNUM_TARGET_GLES
if(context.isExtensionSupported<GL::Extensions::ARB::explicit_uniform_location>(version))
#else
if(version >= GL::Version::GLES310)
#endif
{
vert.addSource(Utility::format(
"#define DYNAMIC_PER_VERTEX_JOINT_COUNT\n"
"#define PER_VERTEX_JOINT_COUNT_LOCATION {}\n",
out._perVertexJointCountUniform));
} else
#endif
{
vert.addSource("#define DYNAMIC_PER_VERTEX_JOINT_COUNT\n"_s);
}
}
#endif
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() >= Flag::UniformBuffers) {
#ifndef MAGNUM_TARGET_WEBGL
/* SSBOs have unbounded per-draw arrays so just a plain string can be
passed */
if(configuration.flags() >= Flag::ShaderStorageBuffers) {
vert.addSource(
"#define UNIFORM_BUFFERS\n"
"#define SHADER_STORAGE_BUFFERS\n"_s);
} else
#endif
{
vert.addSource(Utility::format(
"#define UNIFORM_BUFFERS\n"
"#define DRAW_COUNT {}\n",
configuration.drawCount()));
}
vert.addSource(configuration.flags() >= Flag::MultiDraw ? "#define MULTI_DRAW\n"_s : ""_s);
}
#endif
vert.addSource(rs.getString("generic.glsl"_s))
.addSource(rs.getString("Phong.vert"_s))
.submitCompile();
GL::Shader frag{version, GL::Shader::Type::Fragment};
frag.addSource(rs.getString("compatibility.glsl"_s))
.addSource(configuration.flags() & Flag::AmbientTexture ? "#define AMBIENT_TEXTURE\n"_s : ""_s)
.addSource(configuration.flags() & Flag::DiffuseTexture ? "#define DIFFUSE_TEXTURE\n"_s : ""_s)
.addSource(configuration.flags() & Flag::SpecularTexture ? "#define SPECULAR_TEXTURE\n"_s : ""_s)
.addSource(configuration.flags() & Flag::NormalTexture ? "#define NORMAL_TEXTURE\n"_s : ""_s)
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() & Flag::TextureArrays ? "#define TEXTURE_ARRAYS\n"_s : ""_s)
#endif
.addSource(configuration.flags() & Flag::Bitangent ? "#define BITANGENT\n"_s : ""_s)
.addSource(configuration.flags() & Flag::VertexColor ? "#define VERTEX_COLOR\n"_s : ""_s)
.addSource(configuration.flags() & Flag::DoubleSided ? "#define DOUBLE_SIDED\n"_s : ""_s)
.addSource(configuration.flags() & Flag::AlphaMask ? "#define ALPHA_MASK\n"_s : ""_s)
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() & Flag::ObjectId ? "#define OBJECT_ID\n"_s : ""_s)
.addSource(configuration.flags() >= Flag::InstancedObjectId ? "#define INSTANCED_OBJECT_ID\n"_s : ""_s)
.addSource(configuration.flags() >= Flag::ObjectIdTexture ? "#define OBJECT_ID_TEXTURE\n"_s : ""_s)
#endif
.addSource(configuration.flags() & Flag::NoSpecular ? "#define NO_SPECULAR\n"_s : ""_s)
;
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() >= Flag::UniformBuffers) {
frag.addSource(Utility::format(
#ifndef MAGNUM_TARGET_WEBGL
/* SSBOs have unbounded per-draw, material and light arrays */
configuration.flags() >= Flag::ShaderStorageBuffers ?
"#define UNIFORM_BUFFERS\n"
"#define SHADER_STORAGE_BUFFERS\n"
"#define PER_DRAW_LIGHT_COUNT {3}\n" :
#endif
"#define UNIFORM_BUFFERS\n"
"#define DRAW_COUNT {0}\n"
"#define MATERIAL_COUNT {1}\n"
"#define LIGHT_COUNT {2}\n"
"#define PER_DRAW_LIGHT_COUNT {3}\n",
configuration.drawCount(),
configuration.materialCount(),
configuration.lightCount(),
configuration.perDrawLightCount()));
frag.addSource(configuration.flags() >= Flag::MultiDraw ? "#define MULTI_DRAW\n"_s : ""_s)
.addSource(configuration.flags() >= Flag::LightCulling ? "#define LIGHT_CULLING\n"_s : ""_s);
} else
#endif
{
/* The _LOCATION are needed only if explicit uniform location (desktop
/ ES3.1) is supported, thus not even defining them on ES2 & WebGL.
OTOH, branching on explicit uniform location support and adding just
the first two wouldn't really save much (have to format() anyway),
so passing them otherwise always. */
frag.addSource(Utility::format(
"#define LIGHT_COUNT {}\n"
"#define PER_DRAW_LIGHT_COUNT {}\n"
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
"#define LIGHT_COLORS_LOCATION {}\n"
"#define LIGHT_SPECULAR_COLORS_LOCATION {}\n"
"#define LIGHT_RANGES_LOCATION {}\n"
#endif
,
configuration.lightCount(),
configuration.perDrawLightCount()
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
,
out._lightColorsUniform,
out._lightSpecularColorsUniform,
out._lightRangesUniform
#endif
));
}
#ifndef MAGNUM_TARGET_GLES
if(!(configuration.flags() >= Flag::UniformBuffers) && configuration.lightCount())
frag.addSource(Utility::move(lightInitializer));
#endif
frag.addSource(rs.getString("generic.glsl"_s))
.addSource(rs.getString("Phong.frag"_s))
.submitCompile();
out.attachShaders({vert, frag});
/* ES3 has this done in the shader directly and doesn't even provide
bindFragmentDataLocation() */
#if !defined(MAGNUM_TARGET_GLES) || defined(MAGNUM_TARGET_GLES2)
#ifndef MAGNUM_TARGET_GLES
if(!context.isExtensionSupported<GL::Extensions::ARB::explicit_attrib_location>(version))
#endif
{
out.bindAttributeLocation(Position::Location, "position"_s);
if(configuration.perDrawLightCount())
out.bindAttributeLocation(Normal::Location, "normal"_s);
if((configuration.flags() & Flag::NormalTexture) && configuration.perDrawLightCount()) {
out.bindAttributeLocation(Tangent::Location, "tangent"_s);
if(configuration.flags() & Flag::Bitangent)
out.bindAttributeLocation(Bitangent::Location, "bitangent"_s);
}
if(configuration.flags() & Flag::VertexColor)
out.bindAttributeLocation(Color3::Location, "vertexColor"_s); /* Color4 is the same */
if(configuration.flags() & (Flag::AmbientTexture|Flag::DiffuseTexture|Flag::SpecularTexture)
#ifndef MAGNUM_TARGET_GLES2
|| configuration.flags() >= Flag::ObjectIdTexture
#endif
)
out.bindAttributeLocation(TextureCoordinates::Location, "textureCoordinates"_s);
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() & Flag::ObjectId) {
out.bindFragmentDataLocation(ColorOutput, "color"_s);
out.bindFragmentDataLocation(ObjectIdOutput, "objectId"_s);
}
if(configuration.flags() >= Flag::InstancedObjectId)
out.bindAttributeLocation(ObjectId::Location, "instanceObjectId"_s);
#endif
if(configuration.flags() & Flag::InstancedTransformation) {
out.bindAttributeLocation(TransformationMatrix::Location, "instancedTransformationMatrix"_s);
if(configuration.perDrawLightCount())
out.bindAttributeLocation(NormalMatrix::Location, "instancedNormalMatrix"_s);
}
if(configuration.flags() >= Flag::InstancedTextureOffset)
out.bindAttributeLocation(TextureOffset::Location, "instancedTextureOffset"_s);
#ifndef MAGNUM_TARGET_GLES2
/* Configuration::setJointCount() checks that jointCount and
perVertexJointCount / secondaryPerVertexJointCount are either all
zero or non-zero so we don't need to check for jointCount() here */
if(configuration.perVertexJointCount()) {
out.bindAttributeLocation(Weights::Location, "weights"_s);
out.bindAttributeLocation(JointIds::Location, "jointIds"_s);
}
if(configuration.secondaryPerVertexJointCount()) {
out.bindAttributeLocation(SecondaryWeights::Location, "secondaryWeights"_s);
out.bindAttributeLocation(SecondaryJointIds::Location, "secondaryJointIds"_s);
}
#endif
}
#endif
out.submitLink();
return CompileState{Utility::move(out), Utility::move(vert), Utility::move(frag)
#if !defined(MAGNUM_TARGET_GLES) || (!defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL))
, version
#endif
};
}
PhongGL::CompileState PhongGL::compile() {
return compile(Configuration{});
}
#ifdef MAGNUM_BUILD_DEPRECATED
PhongGL::CompileState PhongGL::compile(const Flags flags, const UnsignedInt lightCount) {
return compile(Configuration{}
.setFlags(flags)
.setLightCount(lightCount));
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL::CompileState PhongGL::compile(const Flags flags, const UnsignedInt lightCount, const UnsignedInt materialCount, const UnsignedInt drawCount) {
return compile(Configuration{}
.setFlags(flags)
.setLightCount(lightCount)
.setMaterialCount(materialCount)
.setDrawCount(drawCount));
}
#endif
#endif
PhongGL::PhongGL(CompileState&& state): PhongGL{static_cast<PhongGL&&>(Utility::move(state))} {
#ifdef CORRADE_GRACEFUL_ASSERT
/* When graceful assertions fire from within compile(), we get a NoCreate'd
CompileState. Exiting makes it possible to test the assert. */
if(!id()) return;
#endif
CORRADE_INTERNAL_ASSERT_OUTPUT(checkLink({GL::Shader(state._vert), GL::Shader(state._frag)}));
#ifndef MAGNUM_TARGET_GLES
const GL::Context& context = GL::Context::current();
if(!context.isExtensionSupported<GL::Extensions::ARB::explicit_uniform_location>(state._version))
#elif !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(state._version < GL::Version::GLES310)
#endif
{
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::DynamicPerVertexJointCount)
_perVertexJointCountUniform = uniformLocation("perVertexJointCount"_s);
if(_flags >= Flag::UniformBuffers) {
if(_drawCount > 1
#ifndef MAGNUM_TARGET_WEBGL
|| flags() >= Flag::ShaderStorageBuffers
#endif
) _drawOffsetUniform = uniformLocation("drawOffset"_s);
} else
#endif
{
_transformationMatrixUniform = uniformLocation("transformationMatrix"_s);
if(_flags & Flag::TextureTransformation)
_textureMatrixUniform = uniformLocation("textureMatrix"_s);
#ifndef MAGNUM_TARGET_GLES2
if(_flags & Flag::TextureArrays)
_textureLayerUniform = uniformLocation("textureLayer"_s);
#endif
_projectionMatrixUniform = uniformLocation("projectionMatrix"_s);
_ambientColorUniform = uniformLocation("ambientColor"_s);
if(_perDrawLightCount) {
_normalMatrixUniform = uniformLocation("normalMatrix"_s);
_diffuseColorUniform = uniformLocation("diffuseColor"_s);
if(!(_flags & Flag::NoSpecular)) {
_specularColorUniform = uniformLocation("specularColor"_s);
_shininessUniform = uniformLocation("shininess"_s);
}
if(_flags & Flag::NormalTexture)
_normalTextureScaleUniform = uniformLocation("normalTextureScale"_s);
_lightPositionsUniform = uniformLocation("lightPositions"_s);
_lightColorsUniform = uniformLocation("lightColors"_s);
if(!(_flags & Flag::NoSpecular))
_lightSpecularColorsUniform = uniformLocation("lightSpecularColors"_s);
_lightRangesUniform = uniformLocation("lightRanges"_s);
}
if(_flags & Flag::AlphaMask) _alphaMaskUniform = uniformLocation("alphaMask"_s);
#ifndef MAGNUM_TARGET_GLES2
if(_flags & Flag::ObjectId) _objectIdUniform = uniformLocation("objectId"_s);
#endif
#ifndef MAGNUM_TARGET_GLES2
if(_jointCount) {
_jointMatricesUniform = uniformLocation("jointMatrices"_s);
_perInstanceJointCountUniform = uniformLocation("perInstanceJointCount"_s);
}
#endif
}
}
#ifndef MAGNUM_TARGET_GLES
if(_flags && !context.isExtensionSupported<GL::Extensions::ARB::shading_language_420pack>(state._version))
#elif !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(state._version < GL::Version::GLES310)
#endif
{
if(_flags & Flag::AmbientTexture) setUniform(uniformLocation("ambientTexture"_s), AmbientTextureUnit);
if(_perDrawLightCount) {
if(_flags & Flag::DiffuseTexture) setUniform(uniformLocation("diffuseTexture"_s), DiffuseTextureUnit);
if(_flags & Flag::SpecularTexture) setUniform(uniformLocation("specularTexture"_s), SpecularTextureUnit);
if(_flags & Flag::NormalTexture) setUniform(uniformLocation("normalTexture"_s), NormalTextureUnit);
}
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::ObjectIdTexture) setUniform(uniformLocation("objectIdTextureData"_s), ObjectIdTextureUnit);
/* SSBOs have bindings defined in the source always */
if(_flags >= Flag::UniformBuffers
#ifndef MAGNUM_TARGET_WEBGL
&& !(_flags >= Flag::ShaderStorageBuffers)
#endif
) {
setUniformBlockBinding(uniformBlockIndex("Projection"_s), ProjectionBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Transformation"_s), TransformationBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Draw"_s), DrawBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Material"_s), MaterialBufferBinding);
if(_flags & Flag::TextureTransformation)
setUniformBlockBinding(uniformBlockIndex("TextureTransformation"_s), TextureTransformationBufferBinding);
if(_lightCount)
setUniformBlockBinding(uniformBlockIndex("Light"_s), LightBufferBinding);
if(_jointCount)
setUniformBlockBinding(uniformBlockIndex("Joint"_s), JointBufferBinding);
}
#endif
}
/* Set defaults in OpenGL ES (for desktop they are set in shader code itself) */
#ifdef MAGNUM_TARGET_GLES
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::DynamicPerVertexJointCount)
setPerVertexJointCount(_perVertexJointCount, _secondaryPerVertexJointCount);
#endif
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::UniformBuffers) {
/* Draw offset is zero by default */
} else
#endif
{
/* Default to fully opaque white so we can see the textures */
if(_flags & Flag::AmbientTexture) setAmbientColor(Magnum::Color4{1.0f});
else setAmbientColor(Magnum::Color4{0.0f});
setTransformationMatrix(Matrix4{Math::IdentityInit});
setProjectionMatrix(Matrix4{Math::IdentityInit});
if(_lightCount) {
setDiffuseColor(Magnum::Color4{1.0f});
if(!(_flags & Flag::NoSpecular)) {
setSpecularColor(Magnum::Color4{1.0f, 0.0f});
setShininess(80.0f);
}
if(_flags & Flag::NormalTexture)
setNormalTextureScale(1.0f);
setLightPositions(Containers::Array<Vector4>{DirectInit, _lightCount, Vector4{0.0f, 0.0f, 1.0f, 0.0f}});
Containers::Array<Magnum::Color3> colors{DirectInit, _lightCount, Magnum::Color3{1.0f}};
setLightColors(colors);
if(!(_flags & Flag::NoSpecular))
setLightSpecularColors(colors);
setLightRanges(Containers::Array<Float>{DirectInit, _lightCount, Constants::inf()});
/* Light position is zero by default */
setNormalMatrix(Matrix3x3{Math::IdentityInit});
}
if(_flags & Flag::TextureTransformation)
setTextureMatrix(Matrix3{Math::IdentityInit});
/* Texture layer is zero by default */
if(_flags & Flag::AlphaMask) setAlphaMask(0.5f);
/* Object ID is zero by default */
#ifndef MAGNUM_TARGET_GLES2
if(_jointCount) {
setJointMatrices(Containers::Array<Matrix4>{DirectInit, _jointCount, Math::IdentityInit});
/* Per-instance joint count is zero by default */
}
#endif
}
#endif
}
PhongGL::PhongGL(const Configuration& configuration): PhongGL{compile(configuration)} {}
PhongGL::PhongGL(): PhongGL{Configuration{}} {}
#ifdef MAGNUM_BUILD_DEPRECATED
PhongGL::PhongGL(const Flags flags, const UnsignedInt lightCount): PhongGL{Configuration{}
.setFlags(flags)
.setLightCount(lightCount)} {}
#ifndef MAGNUM_TARGET_GLES2
PhongGL::PhongGL(const Flags flags, const UnsignedInt lightCount, const UnsignedInt materialCount, const UnsignedInt drawCount): PhongGL{compile(Configuration{}
.setFlags(flags)
.setLightCount(lightCount)
.setMaterialCount(materialCount)
.setDrawCount(drawCount))} {}
#endif
#endif
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::setPerVertexJointCount(const UnsignedInt count, const UnsignedInt secondaryCount) {
CORRADE_ASSERT(_flags >= Flag::DynamicPerVertexJointCount,
"Shaders::PhongGL::setPerVertexJointCount(): the shader was not created with dynamic per-vertex joint count enabled", *this);
CORRADE_ASSERT(count <= _perVertexJointCount,
"Shaders::PhongGL::setPerVertexJointCount(): expected at most" << _perVertexJointCount << "per-vertex joints, got" << count, *this);
CORRADE_ASSERT(secondaryCount <= _secondaryPerVertexJointCount,
"Shaders::PhongGL::setPerVertexJointCount(): expected at most" << _secondaryPerVertexJointCount << "secondary per-vertex joints, got" << secondaryCount, *this);
setUniform(_perVertexJointCountUniform, Vector2ui{count, secondaryCount});
return *this;
}
#endif
PhongGL& PhongGL::setAmbientColor(const Magnum::Color4& color) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setAmbientColor(): the shader was created with uniform buffers enabled", *this);
#endif
setUniform(_ambientColorUniform, color);
return *this;
}
PhongGL& PhongGL::setDiffuseColor(const Magnum::Color4& color) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setDiffuseColor(): the shader was created with uniform buffers enabled", *this);
#endif
if(_perDrawLightCount) setUniform(_diffuseColorUniform, color);
return *this;
}
PhongGL& PhongGL::setSpecularColor(const Magnum::Color4& color) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setSpecularColor(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(!(_flags >= Flag::NoSpecular),
"Shaders::PhongGL::setSpecularColor(): the shader was created with specular disabled", *this);
if(_perDrawLightCount) setUniform(_specularColorUniform, color);
return *this;
}
PhongGL& PhongGL::setShininess(Float shininess) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setShininess(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(!(_flags >= Flag::NoSpecular),
"Shaders::PhongGL::setShininess(): the shader was created with specular disabled", *this);
if(_perDrawLightCount) setUniform(_shininessUniform, shininess);
return *this;
}
PhongGL& PhongGL::setNormalTextureScale(const Float scale) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setNormalTextureScale(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_flags & Flag::NormalTexture,
"Shaders::PhongGL::setNormalTextureScale(): the shader was not created with normal texture enabled", *this);
if(_perDrawLightCount) setUniform(_normalTextureScaleUniform, scale);
return *this;
}
PhongGL& PhongGL::setAlphaMask(Float mask) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setAlphaMask(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_flags & Flag::AlphaMask,
"Shaders::PhongGL::setAlphaMask(): the shader was not created with alpha mask enabled", *this);
setUniform(_alphaMaskUniform, mask);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::setObjectId(UnsignedInt id) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setObjectId(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::ObjectId,
"Shaders::PhongGL::setObjectId(): the shader was not created with object ID enabled", *this);
setUniform(_objectIdUniform, id);
return *this;
}
#endif
PhongGL& PhongGL::setTransformationMatrix(const Matrix4& matrix) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setTransformationMatrix(): the shader was created with uniform buffers enabled", *this);
#endif
setUniform(_transformationMatrixUniform, matrix);
return *this;
}
PhongGL& PhongGL::setNormalMatrix(const Matrix3x3& matrix) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setNormalMatrix(): the shader was created with uniform buffers enabled", *this);
#endif
if(_perDrawLightCount) setUniform(_normalMatrixUniform, matrix);
return *this;
}
PhongGL& PhongGL::setProjectionMatrix(const Matrix4& matrix) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setProjectionMatrix(): the shader was created with uniform buffers enabled", *this);
#endif
setUniform(_projectionMatrixUniform, matrix);
return *this;
}
PhongGL& PhongGL::setTextureMatrix(const Matrix3& matrix) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setTextureMatrix(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_flags & Flag::TextureTransformation,
"Shaders::PhongGL::setTextureMatrix(): the shader was not created with texture transformation enabled", *this);
setUniform(_textureMatrixUniform, matrix);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::setTextureLayer(UnsignedInt id) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setTextureLayer(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::PhongGL::setTextureLayer(): the shader was not created with texture arrays enabled", *this);
setUniform(_textureLayerUniform, id);
return *this;
}
#endif
PhongGL& PhongGL::setLightPositions(const Containers::ArrayView<const Vector4> positions) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightPositions(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_lightCount == positions.size(),
"Shaders::PhongGL::setLightPositions(): expected" << _lightCount << "items but got" << positions.size(), *this);
if(_lightCount) setUniform(_lightPositionsUniform, positions);
return *this;
}
/* It's light, but can't be in the header because MSVC needs to know the size
of Vector3 for the initializer list use */
PhongGL& PhongGL::setLightPositions(const std::initializer_list<Vector4> positions) {
return setLightPositions(Containers::arrayView(positions));
}
#ifdef MAGNUM_BUILD_DEPRECATED
PhongGL& PhongGL::setLightPositions(const Containers::ArrayView<const Vector3> positions) {
Containers::Array<Vector4> fourComponent{NoInit, positions.size()};
for(std::size_t i = 0; i != positions.size(); ++i)
fourComponent[i] = Vector4{positions[i], 0.0f};
setLightPositions(fourComponent);
return *this;
}
PhongGL& PhongGL::setLightPositions(const std::initializer_list<Vector3> positions) {
CORRADE_IGNORE_DEPRECATED_PUSH
return setLightPositions(Containers::arrayView(positions));
CORRADE_IGNORE_DEPRECATED_POP
}
#endif
PhongGL& PhongGL::setLightPosition(const UnsignedInt id, const Vector4& position) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightPosition(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(id < _lightCount,
"Shaders::PhongGL::setLightPosition(): light ID" << id << "is out of range for" << _lightCount << "lights", *this);
setUniform(_lightPositionsUniform + id, position);
return *this;
}
#ifdef MAGNUM_BUILD_DEPRECATED
PhongGL& PhongGL::setLightPosition(UnsignedInt id, const Vector3& position) {
return setLightPosition(id, Vector4{position, 0.0f});
}
PhongGL& PhongGL::setLightPosition(const Vector3& position) {
/* Use the list variant to check the shader really has just one light */
return setLightPositions({Vector4{position, 0.0f}});
}
#endif
PhongGL& PhongGL::setLightColors(const Containers::ArrayView<const Magnum::Color3> colors) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightColors(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_lightCount == colors.size(),
"Shaders::PhongGL::setLightColors(): expected" << _lightCount << "items but got" << colors.size(), *this);
if(_lightCount) setUniform(_lightColorsUniform, colors);
return *this;
}
#ifdef MAGNUM_BUILD_DEPRECATED
PhongGL& PhongGL::setLightColors(const Containers::ArrayView<const Magnum::Color4> colors) {
Containers::Array<Magnum::Color3> threeComponent{NoInit, colors.size()};
for(std::size_t i = 0; i != colors.size(); ++i)
threeComponent[i] = colors[i].rgb();
setLightColors(threeComponent);
return *this;
}
PhongGL& PhongGL::setLightColors(const std::initializer_list<Magnum::Color4> colors) {
CORRADE_IGNORE_DEPRECATED_PUSH
return setLightColors(Containers::arrayView(colors));
CORRADE_IGNORE_DEPRECATED_POP
}
#endif
PhongGL& PhongGL::setLightColors(const std::initializer_list<Magnum::Color3> colors) {
return setLightColors(Containers::arrayView(colors));
}
PhongGL& PhongGL::setLightColor(const UnsignedInt id, const Magnum::Color3& color) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightColor(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(id < _lightCount,
"Shaders::PhongGL::setLightColor(): light ID" << id << "is out of range for" << _lightCount << "lights", *this);
setUniform(_lightColorsUniform + id, color);
return *this;
}
#ifdef MAGNUM_BUILD_DEPRECATED
PhongGL& PhongGL::setLightColor(UnsignedInt id, const Magnum::Color4& color) {
return setLightColor(id, color.rgb());
}
PhongGL& PhongGL::setLightColor(const Magnum::Color4& color) {
/* Use the list variant to check the shader really has just one light */
return setLightColors({color.rgb()});
}
#endif
PhongGL& PhongGL::setLightSpecularColors(const Containers::ArrayView<const Magnum::Color3> colors) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightSpecularColors(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_lightCount == colors.size(),
"Shaders::PhongGL::setLightSpecularColors(): expected" << _lightCount << "items but got" << colors.size(), *this);
CORRADE_ASSERT(!(_flags >= Flag::NoSpecular),
"Shaders::PhongGL::setLightSpecularColors(): the shader was created with specular disabled", *this);
if(_lightCount) setUniform(_lightSpecularColorsUniform, colors);
return *this;
}
PhongGL& PhongGL::setLightSpecularColors(const std::initializer_list<Magnum::Color3> colors) {
return setLightSpecularColors(Containers::arrayView(colors));
}
PhongGL& PhongGL::setLightSpecularColor(const UnsignedInt id, const Magnum::Color3& color) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightSpecularColor(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(id < _lightCount,
"Shaders::PhongGL::setLightSpecularColor(): light ID" << id << "is out of range for" << _lightCount << "lights", *this);
CORRADE_ASSERT(!(_flags >= Flag::NoSpecular),
"Shaders::PhongGL::setLightSpecularColor(): the shader was created with specular disabled", *this);
setUniform(_lightSpecularColorsUniform + id, color);
return *this;
}
PhongGL& PhongGL::setLightRanges(const Containers::ArrayView<const Float> ranges) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightRanges(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_lightCount == ranges.size(),
"Shaders::PhongGL::setLightRanges(): expected" << _lightCount << "items but got" << ranges.size(), *this);
if(_lightCount) setUniform(_lightRangesUniform, ranges);
return *this;
}
PhongGL& PhongGL::setLightRanges(const std::initializer_list<Float> ranges) {
return setLightRanges(Containers::arrayView(ranges));
}
PhongGL& PhongGL::setLightRange(const UnsignedInt id, const Float range) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setLightRange(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(id < _lightCount,
"Shaders::PhongGL::setLightRange(): light ID" << id << "is out of range for" << _lightCount << "lights", *this);
setUniform(_lightRangesUniform + id, range);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::setJointMatrices(const Containers::ArrayView<const Matrix4> matrices) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setJointMatrices(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(matrices.size() <= _jointCount,
"Shaders::PhongGL::setJointMatrices(): expected at most" << _jointCount << "items but got" << matrices.size(), *this);
if(_jointCount) setUniform(_jointMatricesUniform, matrices);
return *this;
}
PhongGL& PhongGL::setJointMatrices(const std::initializer_list<Matrix4> matrices) {
return setJointMatrices(Containers::arrayView(matrices));
}
PhongGL& PhongGL::setJointMatrix(const UnsignedInt id, const Matrix4& matrix) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setJointMatrix(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(id < _jointCount,
"Shaders::PhongGL::setJointMatrix(): joint ID" << id << "is out of range for" << _jointCount << "joints", *this);
setUniform(_jointMatricesUniform + id, matrix);
return *this;
}
PhongGL& PhongGL::setPerInstanceJointCount(const UnsignedInt count) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::PhongGL::setPerInstanceJointCount(): the shader was created with uniform buffers enabled", *this);
setUniform(_perInstanceJointCountUniform, count);
return *this;
}
#endif
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::setDrawOffset(const UnsignedInt offset) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::setDrawOffset(): the shader was not created with uniform buffers enabled", *this);
#ifndef MAGNUM_TARGET_WEBGL
CORRADE_ASSERT(_flags >= Flag::ShaderStorageBuffers || offset < _drawCount,
"Shaders::PhongGL::setDrawOffset(): draw offset" << offset << "is out of range for" << _drawCount << "draws", *this);
#else
CORRADE_ASSERT(offset < _drawCount,
"Shaders::PhongGL::setDrawOffset(): draw offset" << offset << "is out of range for" << _drawCount << "draws", *this);
#endif
if(_drawCount > 1
#ifndef MAGNUM_TARGET_WEBGL
|| _flags >= Flag::ShaderStorageBuffers
#endif
) setUniform(_drawOffsetUniform, offset);
return *this;
}
PhongGL& PhongGL::bindProjectionBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindProjectionBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, ProjectionBufferBinding);
return *this;
}
PhongGL& PhongGL::bindProjectionBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindProjectionBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, ProjectionBufferBinding, offset, size);
return *this;
}
PhongGL& PhongGL::bindTransformationBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindTransformationBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, TransformationBufferBinding);
return *this;
}
PhongGL& PhongGL::bindTransformationBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindTransformationBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, TransformationBufferBinding, offset, size);
return *this;
}
PhongGL& PhongGL::bindDrawBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindDrawBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, DrawBufferBinding);
return *this;
}
PhongGL& PhongGL::bindDrawBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindDrawBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, DrawBufferBinding, offset, size);
return *this;
}
PhongGL& PhongGL::bindTextureTransformationBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindTextureTransformationBuffer(): the shader was not created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureTransformation,
"Shaders::PhongGL::bindTextureTransformationBuffer(): the shader was not created with texture transformation enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, TextureTransformationBufferBinding);
return *this;
}
PhongGL& PhongGL::bindTextureTransformationBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindTextureTransformationBuffer(): the shader was not created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureTransformation,
"Shaders::PhongGL::bindTextureTransformationBuffer(): the shader was not created with texture transformation enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, TextureTransformationBufferBinding, offset, size);
return *this;
}
PhongGL& PhongGL::bindMaterialBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindMaterialBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, MaterialBufferBinding);
return *this;
}
PhongGL& PhongGL::bindMaterialBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindMaterialBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, MaterialBufferBinding, offset, size);
return *this;
}
PhongGL& PhongGL::bindLightBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindLightBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, LightBufferBinding);
return *this;
}
PhongGL& PhongGL::bindLightBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindLightBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, LightBufferBinding, offset, size);
return *this;
}
PhongGL& PhongGL::bindJointBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindJointBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, JointBufferBinding);
return *this;
}
PhongGL& PhongGL::bindJointBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::PhongGL::bindJointBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, JointBufferBinding, offset, size);
return *this;
}
#endif
PhongGL& PhongGL::bindAmbientTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags & Flag::AmbientTexture,
"Shaders::PhongGL::bindAmbientTexture(): the shader was not created with ambient texture enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::PhongGL::bindAmbientTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
texture.bind(AmbientTextureUnit);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::bindAmbientTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags & Flag::AmbientTexture,
"Shaders::PhongGL::bindAmbientTexture(): the shader was not created with ambient texture enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::PhongGL::bindAmbientTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
texture.bind(AmbientTextureUnit);
return *this;
}
#endif
PhongGL& PhongGL::bindDiffuseTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags & Flag::DiffuseTexture,
"Shaders::PhongGL::bindDiffuseTexture(): the shader was not created with diffuse texture enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::PhongGL::bindDiffuseTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
if(_perDrawLightCount) texture.bind(DiffuseTextureUnit);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::bindDiffuseTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags & Flag::DiffuseTexture,
"Shaders::PhongGL::bindDiffuseTexture(): the shader was not created with diffuse texture enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::PhongGL::bindDiffuseTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
if(_perDrawLightCount) texture.bind(DiffuseTextureUnit);
return *this;
}
#endif
PhongGL& PhongGL::bindSpecularTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags & Flag::SpecularTexture,
"Shaders::PhongGL::bindSpecularTexture(): the shader was not created with specular texture enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::PhongGL::bindSpecularTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
if(_perDrawLightCount) texture.bind(SpecularTextureUnit);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::bindSpecularTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags & Flag::SpecularTexture,
"Shaders::PhongGL::bindSpecularTexture(): the shader was not created with specular texture enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::PhongGL::bindSpecularTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
if(_perDrawLightCount) texture.bind(SpecularTextureUnit);
return *this;
}
#endif
PhongGL& PhongGL::bindNormalTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags & Flag::NormalTexture,
"Shaders::PhongGL::bindNormalTexture(): the shader was not created with normal texture enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::PhongGL::bindNormalTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
if(_perDrawLightCount) texture.bind(NormalTextureUnit);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::bindNormalTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags & Flag::NormalTexture,
"Shaders::PhongGL::bindNormalTexture(): the shader was not created with normal texture enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::PhongGL::bindNormalTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
if(_perDrawLightCount) texture.bind(NormalTextureUnit);
return *this;
}
#endif
#ifndef MAGNUM_TARGET_GLES2
PhongGL& PhongGL::bindObjectIdTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags >= Flag::ObjectIdTexture,
"Shaders::PhongGL::bindObjectIdTexture(): the shader was not created with object ID texture enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::PhongGL::bindObjectIdTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
texture.bind(ObjectIdTextureUnit);
return *this;
}
PhongGL& PhongGL::bindObjectIdTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags >= Flag::ObjectIdTexture,
"Shaders::PhongGL::bindObjectIdTexture(): the shader was not created with object ID texture enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::PhongGL::bindObjectIdTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
texture.bind(ObjectIdTextureUnit);
return *this;
}
#endif
PhongGL& PhongGL::bindTextures(GL::Texture2D* ambient, GL::Texture2D* diffuse, GL::Texture2D* specular, GL::Texture2D* normal) {
CORRADE_ASSERT(_flags & (Flag::AmbientTexture|Flag::DiffuseTexture|Flag::SpecularTexture|Flag::NormalTexture),
"Shaders::PhongGL::bindTextures(): the shader was not created with any textures enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::PhongGL::bindTextures(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
GL::AbstractTexture::bind(AmbientTextureUnit, {ambient, diffuse, specular, normal});
return *this;
}
PhongGL::Configuration& PhongGL::Configuration::setLightCount(const UnsignedInt count, const UnsignedInt perDrawCount) {
CORRADE_ASSERT(perDrawCount || !count,
"Shaders::PhongGL::Configuration::setLightCount(): count has to be zero if per-draw count is zero", *this);
_lightCount = count;
_perDrawLightCount = perDrawCount;
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
PhongGL::Configuration& PhongGL::Configuration::setJointCount(UnsignedInt count, UnsignedInt perVertexCount, UnsignedInt secondaryPerVertexCount) {
CORRADE_ASSERT(perVertexCount <= 4,
"Shaders::PhongGL::Configuration::setJointCount(): expected at most 4 per-vertex joints, got" << perVertexCount, *this);
CORRADE_ASSERT(secondaryPerVertexCount <= 4,
"Shaders::PhongGL::Configuration::setJointCount(): expected at most 4 secondary per-vertex joints, got" << secondaryPerVertexCount, *this);
CORRADE_ASSERT(perVertexCount || secondaryPerVertexCount || !count,
"Shaders::PhongGL::Configuration::setJointCount(): count has to be zero if per-vertex joint count is zero", *this);
_jointCount = count;
_perVertexJointCount = perVertexCount;
_secondaryPerVertexJointCount = secondaryPerVertexCount;
return *this;
}
#endif
Debug& operator<<(Debug& debug, const PhongGL::Flag value) {
#ifndef MAGNUM_TARGET_GLES2
/* Special case coming from the Flags printer. As both flags are a superset
of ObjectId, printing just one would result in
`Flag::InstancedObjectId|Flag(0x20000)` in the output. */
if(value == PhongGL::Flag(UnsignedInt(PhongGL::Flag::InstancedObjectId|PhongGL::Flag::ObjectIdTexture)))
return debug << PhongGL::Flag::InstancedObjectId << Debug::nospace << "|" << Debug::nospace << PhongGL::Flag::ObjectIdTexture;
#ifndef MAGNUM_TARGET_WEBGL
/* Similarly here, both are a superset of UniformBuffers */
if(value == PhongGL::Flag(UnsignedInt(PhongGL::Flag::MultiDraw|PhongGL::Flag::ShaderStorageBuffers)))
return debug << PhongGL::Flag::MultiDraw << Debug::nospace << "|" << Debug::nospace << PhongGL::Flag::ShaderStorageBuffers;
#endif
#endif
debug << "Shaders::PhongGL::Flag" << Debug::nospace;
switch(value) {
/* LCOV_EXCL_START */
#define _c(v) case PhongGL::Flag::v: return debug << "::" #v;
_c(AmbientTexture)
_c(DiffuseTexture)
_c(SpecularTexture)
_c(NormalTexture)
_c(Bitangent)
_c(AlphaMask)
_c(VertexColor)
_c(DoubleSided)
_c(TextureTransformation)
#ifndef MAGNUM_TARGET_GLES2
_c(ObjectId)
_c(InstancedObjectId)
_c(ObjectIdTexture)
#endif
_c(InstancedTransformation)
_c(InstancedTextureOffset)
#ifndef MAGNUM_TARGET_GLES2
_c(UniformBuffers)
#ifndef MAGNUM_TARGET_WEBGL
_c(ShaderStorageBuffers)
#endif
_c(MultiDraw)
_c(TextureArrays)
_c(LightCulling)
#endif
_c(NoSpecular)
#ifndef MAGNUM_TARGET_GLES2
_c(DynamicPerVertexJointCount)
#endif
#undef _c
/* LCOV_EXCL_STOP */
}
return debug << "(" << Debug::nospace << Debug::hex << UnsignedInt(value) << Debug::nospace << ")";
}
Debug& operator<<(Debug& debug, const PhongGL::Flags value) {
return Containers::enumSetDebugOutput(debug, value, "Shaders::PhongGL::Flags{}", {
PhongGL::Flag::AmbientTexture,
PhongGL::Flag::DiffuseTexture,
PhongGL::Flag::SpecularTexture,
PhongGL::Flag::NormalTexture,
PhongGL::Flag::Bitangent,
PhongGL::Flag::AlphaMask,
PhongGL::Flag::VertexColor,
PhongGL::Flag::DoubleSided,
PhongGL::Flag::InstancedTextureOffset, /* Superset of TextureTransformation */
PhongGL::Flag::TextureTransformation,
#ifndef MAGNUM_TARGET_GLES2
/* Both are a superset of ObjectId, meaning printing just one would
result in `Flag::InstancedObjectId|Flag(0x20000)` in the output. So
we pass both and let the Flag printer deal with that. */
PhongGL::Flag(UnsignedInt(PhongGL::Flag::InstancedObjectId|PhongGL::Flag::ObjectIdTexture)),
PhongGL::Flag::InstancedObjectId, /* Superset of ObjectId */
PhongGL::Flag::ObjectIdTexture, /* Superset of ObjectId */
PhongGL::Flag::ObjectId,
#endif
PhongGL::Flag::InstancedTransformation,
#ifndef MAGNUM_TARGET_GLES2
#ifndef MAGNUM_TARGET_WEBGL
/* Both are a superset of UniformBuffers; similarly to ObjectId above
letting the Flag printer deal with that */
PhongGL::Flag(UnsignedInt(PhongGL::Flag::MultiDraw|PhongGL::Flag::ShaderStorageBuffers)),
#endif
PhongGL::Flag::MultiDraw, /* Superset of UniformBuffers */
#ifndef MAGNUM_TARGET_WEBGL
PhongGL::Flag::ShaderStorageBuffers, /* Superset of UniformBuffers */
#endif
PhongGL::Flag::UniformBuffers,
PhongGL::Flag::TextureArrays,
PhongGL::Flag::LightCulling,
#endif
PhongGL::Flag::NoSpecular,
#ifndef MAGNUM_TARGET_GLES2
PhongGL::Flag::DynamicPerVertexJointCount,
#endif
});
}
}}