void Bamboo::RN_Deferred::ItlPreRenderChildren()
{
glBindFramebuffer(GL_FRAMEBUFFER, m_nFBO);
ItlPushFBO(m_nFBO);
//set viewport size
glViewport(0,0, m_nWidth, m_nHeight);
// clear buffers
// glClearColor(0.0, 0.0, 0.0, 0.0);
//glClearDepth(1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ItlGetGraphicCore()->GetShaderManager()->PushActiveShader();
if (m_bLayeredFBO)
ItlGetGraphicCore()->GetShaderManager()->ActivateShader("deferred_pass_cm");
else
ItlGetGraphicCore()->GetShaderManager()->ActivateShader("deferred_pass");
GLuint l_nUseParallax = ItlGetGraphicCore()->GetShaderManager()->GetUniform("nUseParallax");
assert (l_nUseParallax != -1);
glUniform1i(l_nUseParallax, s_nUseParallax % 2);
ItlPushViewportInformation(m_nWidth, m_nHeight);
}
/*!
* This method is called internally BEFORE rendering the children,
* and binds and clears the fbo as needed.
*/
void Bamboo::RN_FBO::ItlPreRenderChildren()
{
//bind fbo
glBindFramebuffer(GL_FRAMEBUFFER, m_nFramebuffer);
//set viewport size
glViewport(0,0, m_iWidth, m_iHeight);
// clear buffers
// glClearColor(0.0, 0.0, 0.0, 0.0);
//glClearDepth(1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
///store our fbo-id on the stack, to allow "deeper" SceneObject_FBOs to rebind our fbo after finish drawing
ItlPushFBO(m_nFramebuffer);
ItlPushViewportInformation(m_iWidth, m_iHeight);
}
void Bamboo::RN_Deferred::ItlRender()
{
double test[3];
// glVertex3dv(test);
if (m_bLayeredFBO == false)
{
glBindFramebuffer(GL_FRAMEBUFFER, m_nFBO);
ItlPushFBO(m_nFBO);
ItlPushViewportInformation(m_nWidth, m_nHeight);
glViewport(0,0, m_nWidth, m_nHeight);
GLenum tDrawBuffers[1] = { GL_COLOR_ATTACHMENT0 };
glDrawBuffers(1, tDrawBuffers);
//glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
//glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_STENCIL_TEST);
glStencilFunc(GL_EQUAL, 0, 1);
glStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
// first, we search for all lights
for (unsigned int a=0; a < m_vspSpotLights.size(); a++)
{
glClear(GL_STENCIL_BUFFER_BIT);
std::shared_ptr<Bamboo::RN_SpotLight> spLight (m_vspSpotLights[a]);
spLight->SetTextureLocation("color_texture", m_nAlbedoDrawBuffer);
spLight->SetTextureLocation("normal_texture", m_nNormalDrawBuffer);
spLight->SetTextureLocation("tangent_texture", m_nTangentDrawBuffer);
spLight->SetTextureLocation("normalmap_texture", m_nNormalMapDrawBuffer);
spLight->SetTextureLocation("depth_texture", m_nDepthDrawBuffer);
spLight->SetTextureLocation("position_texture", m_nPositionDrawBuffer);
spLight->SetTextureLocation("specular_texture", m_nSpecularDrawBuffer);
spLight->SetTextureLocation("displace_texture", m_nDisplaceDrawBuffer);
//spLight->SetTextureLocation("position_texture", m_nPositionDrawBuffer);
TItlRenderInfo *pCurrentRenderInfo = m_pCurrentRenderInfo.get();
//store old matrices
glm::mat4 SavedModelViewProjectionMatrix = pCurrentRenderInfo->ModelViewProjectionMatrix;
glm::mat4 SavedInverseModelViewProjectionMatrix = pCurrentRenderInfo->InverseModelViewProjectionMatrix;
glm::mat4 SavedModelMatrix = pCurrentRenderInfo->ModelMatrix;
glm::mat4 SavedModelViewProjectionMatrix_ForFrustumCulling = pCurrentRenderInfo->ModelViewProjectionMatrix_ForFrustumCulling;
//update matrices by multiplying with our matrices
pCurrentRenderInfo->ModelViewProjectionMatrix = pCurrentRenderInfo->ModelViewProjectionMatrix * m_mTransformMatrixToWorld;
pCurrentRenderInfo->InverseModelViewProjectionMatrix = pCurrentRenderInfo->InverseModelViewProjectionMatrix * m_mTransformMatrixFromWorld;
pCurrentRenderInfo->ModelMatrix = pCurrentRenderInfo->ModelMatrix * m_mTransformMatrixToWorld;
pCurrentRenderInfo->ModelViewProjectionMatrix_ForFrustumCulling = pCurrentRenderInfo->ModelViewProjectionMatrix_ForFrustumCulling * m_mTransformMatrixToWorld;
spLight->Render(this);
//write old matrices
pCurrentRenderInfo->ModelViewProjectionMatrix = SavedModelViewProjectionMatrix;
pCurrentRenderInfo->InverseModelViewProjectionMatrix = SavedInverseModelViewProjectionMatrix;
pCurrentRenderInfo->ModelMatrix = SavedModelMatrix;
pCurrentRenderInfo->ModelViewProjectionMatrix_ForFrustumCulling = SavedModelViewProjectionMatrix_ForFrustumCulling;
}
glDisable(GL_STENCIL_TEST);
GLenum tDrawBuffers2[7] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 , GL_COLOR_ATTACHMENT3, GL_COLOR_ATTACHMENT4 , GL_COLOR_ATTACHMENT5, GL_COLOR_ATTACHMENT6};
glDrawBuffers(7, tDrawBuffers2);
ItlPostRenderChildren();
// ---BEGIN ---- this is just for debugging!
static Bamboo::RN_PostEffect rPostEffectNode("directwrite");
GLuint nTextureToShow;
// std::cout << s_DebugDeferredTexture << std::endl;
switch (s_DebugDeferredTexture % 6)
{
case 0:
nTextureToShow = m_nAlbedoDrawBuffer;
break;
case 1:
nTextureToShow = m_nDisplaceDrawBuffer;
break;
case 2:
nTextureToShow = m_nSpecularDrawBuffer;
break;
case 3:
nTextureToShow = m_nNormalMapDrawBuffer;
break;
case 4:
nTextureToShow = m_nTangentDrawBuffer;
break;
case 5:
nTextureToShow = m_nSpecularDrawBuffer;
break;
}
rPostEffectNode.SetTexture("texture1", nTextureToShow );
rPostEffectNode.Render();
}
else
{
static bool bAlreadyPrinted = false;
if (bAlreadyPrinted == false)
{
Logger::debug() << "Texture id of cube map: " << m_nAlbedoDrawBuffer << Logger::endl;
bAlreadyPrinted = true;
}
}
}
