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67 lines
2.0 KiB
67 lines
2.0 KiB
16 years ago
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/*
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Copyright © 2010 Vladimír Vondruš <mosra@centrum.cz>
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This file is part of Magnum.
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Magnum is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License version 3
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only, as published by the Free Software Foundation.
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Magnum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License version 3 for more details.
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*/
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#include "Scene.h"
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using namespace std;
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namespace Magnum {
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void Scene::setFeature(Scene::Feature feature, bool enabled) {
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GLenum _feature;
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switch(feature) {
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case AlphaBlending: _feature = GL_BLEND; break;
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case DepthTest: _feature = GL_DEPTH_TEST; break;
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case FaceCulling: _feature = GL_CULL_FACE; break;
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default: return;
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}
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enabled ? glEnable(_feature) : glDisable(_feature);
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}
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void Scene::setClearColor(const Magnum::Vector4& color) {
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glClearColor(color.r(), color.g(), color.b(), color.a());
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_clearColor = color;
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}
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void Scene::setCamera(Camera* camera) {
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camera->setViewport(viewportWidth, viewportHeight);
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_camera = camera;
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}
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void Scene::draw() {
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/* No camera available, nothing to do */
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if(!_camera) return;
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/** @todo Clear only set features */
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glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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/* Recursively draw child objects */
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drawChildren(this, _camera->cameraMatrix());
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}
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void Scene::drawChildren(AbstractObject* object, const Matrix4& transformationMatrix) {
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for(set<AbstractObject*>::const_iterator it = object->children().begin(); it != object->children().end(); ++it) {
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/* Transformation matrix for the object */
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Matrix4 matrix = (*it)->transformation()*transformationMatrix;
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/* Draw the object and its children */
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(*it)->draw(matrix, _camera->projectionMatrix());
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drawChildren(*it, matrix);
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}
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}
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}
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