Shaders: document also that some Configuration getters are not on ES2.

For consistency, because the same getters on the shader class itself
contain this info.

src/Magnum/Shaders/DistanceFieldVectorGL.h

@@ -661,7 +661,12 @@ template<UnsignedInt dimensions> class DistanceFieldVectorGL<dimensions>::Config
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Material count */
+        /**
+         * @brief Material count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt materialCount() const { return _materialCount; }
 
         /**
@@ -686,7 +691,12 @@ template<UnsignedInt dimensions> class DistanceFieldVectorGL<dimensions>::Config
             return *this;
         }
 
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**

src/Magnum/Shaders/FlatGL.h

@@ -1075,7 +1075,12 @@ template<UnsignedInt dimensions> class FlatGL<dimensions>::Configuration {
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Material count */
+        /**
+         * @brief Material count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt materialCount() const { return _materialCount; }
 
         /**
@@ -1099,7 +1104,12 @@ template<UnsignedInt dimensions> class FlatGL<dimensions>::Configuration {
             return *this;
         }
 
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**

src/Magnum/Shaders/MeshVisualizerGL.h

@@ -894,7 +894,12 @@ class MeshVisualizerGL2D::Configuration {
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Material count */
+        /**
+         * @brief Material count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt materialCount() const { return _materialCount; }
 
         /**
@@ -919,7 +924,12 @@ class MeshVisualizerGL2D::Configuration {
             return *this;
         }
 
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**
@@ -2473,7 +2483,12 @@ class MeshVisualizerGL3D::Configuration {
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Material count */
+        /**
+         * @brief Material count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt materialCount() const { return _materialCount; }
 
         /**
@@ -2498,7 +2513,12 @@ class MeshVisualizerGL3D::Configuration {
             return *this;
         }
 
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**

src/Magnum/Shaders/PhongGL.h

@@ -1855,7 +1855,12 @@ class PhongGL::Configuration {
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Material count */
+        /**
+         * @brief Material count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt materialCount() const { return _materialCount; }
 
         /**
@@ -1879,7 +1884,12 @@ class PhongGL::Configuration {
             return *this;
         }
 
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**

src/Magnum/Shaders/VectorGL.h

@@ -613,7 +613,12 @@ template<UnsignedInt dimensions> class VectorGL<dimensions>::Configuration {
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Material count */
+        /**
+         * @brief Material count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt materialCount() const { return _materialCount; }
 
         /**
@@ -637,7 +642,12 @@ template<UnsignedInt dimensions> class VectorGL<dimensions>::Configuration {
             return *this;
         }
 
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**

src/Magnum/Shaders/VertexColorGL.h

@@ -466,7 +466,12 @@ template<UnsignedInt dimensions> class VertexColorGL<dimensions>::Configuration
         }
 
         #ifndef MAGNUM_TARGET_GLES2
-        /** @brief Draw count */
+        /**
+         * @brief Draw count
+         *
+         * @requires_gles30 Not defined on OpenGL ES 2.0 builds.
+         * @requires_webgl20 Not defined on WebGL 1.0 builds.
+         */
         UnsignedInt drawCount() const { return _drawCount; }
 
         /**