void PostProcessSample::update(float elapsedTime)
{
_modelNode->rotateY(elapsedTime * MATH_DEG_TO_RAD(0.25f));
// Only the last sample will check live updating of material parameters
if (_compositorIndex == _compositors.size() - 1)
{
Compositor* compositor = _compositors[_compositorIndex];
MaterialParameter* elapsedParam = compositor->getMaterial()->getParameter("u_elapsedTime");
if (elapsedParam)
elapsedParam->setValue(elapsedTime);
MaterialParameter* randomParam = compositor->getMaterial()->getParameter("u_random");
if (randomParam)
randomParam->setValue(MATH_RANDOM_0_1());
}
}
void PostProcessSample::initialize()
{
_font = Font::create("res/ui/arial.gpb");
// Load game scene from file
_scene = Scene::load("res/common/duck.gpb");
_scene->getActiveCamera()->setAspectRatio(getAspectRatio());
// Initialize box model
_modelNode = _scene->findNode("duck");
Model* model = dynamic_cast<Model*>(_modelNode->getDrawable());
Material* material = model->setMaterial("res/common/duck.material");
// Get light node
Node* lightNode = _scene->findNode("directionalLight1");
Light* light = lightNode->getLight();
material->getParameter("u_directionalLightColor[0]")->setValue(light->getColor());
material->getParameter("u_directionalLightDirection[0]")->setValue(lightNode->getForwardVectorView());
// Create one frame buffer for the full screen compositerss.
_frameBuffer = FrameBuffer::create("PostProcessSample", FRAMEBUFFER_WIDTH, FRAMEBUFFER_HEIGHT);
DepthStencilTarget* dst = DepthStencilTarget::create("PostProcessSample", DepthStencilTarget::DEPTH_STENCIL, FRAMEBUFFER_WIDTH, FRAMEBUFFER_HEIGHT);
_frameBuffer->setDepthStencilTarget(dst);
SAFE_RELEASE(dst);
// Create our compositors that all output to the default framebuffer.
Compositor* compositor = NULL;
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Passthrough");
_compositors.push_back(compositor);
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Grayscale");
_compositors.push_back(compositor);
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Sepia");
_compositors.push_back(compositor);
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Pixelate");
_compositors.push_back(compositor);
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Sobel Edge");
_compositors.push_back(compositor);
compositor->getMaterial()->getParameter("u_width")->setValue((float)FRAMEBUFFER_WIDTH / 2.0f);
compositor->getMaterial()->getParameter("u_height")->setValue((float)FRAMEBUFFER_HEIGHT / 2.0f);
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Gaussian Blur");
_compositors.push_back(compositor);
compositor->getMaterial()->getParameter("u_length")->setValue(1.0f / ((float)FRAMEBUFFER_WIDTH / 2.0f));
compositor = Compositor::create(_frameBuffer, NULL, "res/common/postprocess/postprocess.material", "Old Film");
_compositors.push_back(compositor);
compositor->getMaterial()->getParameter("u_sepiaValue")->setValue(0.8f);
compositor->getMaterial()->getParameter("u_noiseValue")->setValue(0.4f);
compositor->getMaterial()->getParameter("u_scratchValue")->setValue(0.4f);
compositor->getMaterial()->getParameter("u_innerVignetting")->setValue(0.9f);
compositor->getMaterial()->getParameter("u_outerVignetting")->setValue(0.9f);
}