void IndexedDirectionalLightRenderer::renderShadowMap( Renderer& renderer, const DirectionalLight* light, const IndexedLightingRenderData& data )
{
if ( !m_shadowDepthMapShader || !m_shadowProjectionPS || !data.m_shadowDepthTexture )
{
return;
}
Camera& activeCamera = renderer.getActiveCamera();
m_cascadeCalculationConfig.m_lightRotationMtx = light->getGlobalMtx();
m_cascadeCalculationConfig.m_lightRotationMtx.setPosition<3>( Quad_0 );
m_cascadeCalculationConfig.m_cascadeDimensions = (float)( data.m_shadowDepthTexture->getWidth() ) / (float)m_cascadeCalculationConfig.m_numCascadesPerTextureRow;
data.m_renderingView->getSceneBounds( m_cascadeCalculationConfig.m_sceneBounds );
m_cascadeCalculationConfig.m_activeCamera = &activeCamera;
Vector lightPos;
CascadedShadowsUtils::calculateCascadesBounds( m_cascadeCalculationConfig, m_calculatedCascadeStages );
// set the light camera
Camera lightCamera( "dirLightCamera", renderer, Camera::PT_ORTHO );
// render cascades
renderCascades( renderer, activeCamera, lightCamera, data );
// combine the cascades
combineCascades( renderer, data, activeCamera, lightCamera, m_cascadeCalculationConfig.m_cascadeDimensions );
}
void RenderDevice::updateLightDepth( LightState& state )
{
#if 0
const LightPtr& light = state.light;
assert( light->getLightType() == LightType::Directional );
Texture* shadowDepthTexture;
if( !shadowDepthBuffer )
{
shadowDepthBuffer = createRenderBuffer( Settings(512, 512) );
}
if( shadowTextures.find(light) == shadowTextures.end() )
{
shadowDepthTexture = shadowDepthBuffer->createRenderTexture();
shadowTextures[light] = shadowDepthTexture;
}
else
{
shadowDepthTexture = shadowTextures[light];
}
CameraPtr lightCamera( new Camera(*camera) );
TransformPtr lightTransform( new Transform(*state.transform.get()) );
EntityPtr lightCameraEntity( new Entity("ShadowCamera") );
lightCameraEntity->addTransform(); /*Component( lightTransform );*/
lightCameraEntity->addComponent( lightCamera );
RenderView* lightView = new View(lightCamera, shadowDepthBuffer);
if( !shadowDepthBuffer->check() )
return;
// TODO: turn off color writes (glColorMask?)
lightView->update();
shadowDepthBuffer->unbind();
Matrix4x4 bias;
bias.identity();
bias.m11 = 0.5f;
bias.m22 = 0.5f;
bias.m33 = 0.5f;
bias.tx = 0.5f;
bias.ty = 0.5f;
bias.tz = 0.5f;
const Frustum& frustum = lightCamera->getFrustum();
const Matrix4x4& matProjection = frustum.projectionMatrix;
state.projection = lightCamera->getViewMatrix()
* matProjection * bias;
#endif
}
