/** Draws this effect to the given buffer */
XRESULT D3D11PFX_HDR::Render(RenderToTextureBuffer* fxbuffer)
{
D3D11GraphicsEngine* engine = (D3D11GraphicsEngine *)Engine::GraphicsEngine;
Engine::GAPI->GetRendererState()->BlendState.BlendEnabled = false;
Engine::GAPI->GetRendererState()->BlendState.SetDirty();
// Save old rendertargets
ID3D11RenderTargetView* oldRTV = NULL;
ID3D11DepthStencilView* oldDSV = NULL;
engine->GetContext()->OMGetRenderTargets(1, &oldRTV, &oldDSV);
RenderToTextureBuffer* lum = CalcLuminance();
CreateBloom(lum);
// Copy the original image to our temp-buffer
FxRenderer->CopyTextureToRTV(engine->GetHDRBackBuffer()->GetShaderResView(), FxRenderer->GetTempBuffer()->GetRenderTargetView(), engine->GetResolution());
// Bind scene and luminance
FxRenderer->GetTempBuffer()->BindToPixelShader(engine->GetContext(), 0);
lum->BindToPixelShader(engine->GetContext(), 1);
// Bind bloom
FxRenderer->GetTempBufferDS4_1()->BindToPixelShader(engine->GetContext(), 2);
// Draw the HDR-Shader
D3D11PShader* hps = engine->GetShaderManager()->GetPShader("PS_PFX_HDR");
hps->Apply();
HDRSettingsConstantBuffer hcb;
hcb.HDR_LumWhite = Engine::GAPI->GetRendererState()->RendererSettings.HDRLumWhite;
hcb.HDR_MiddleGray = Engine::GAPI->GetRendererState()->RendererSettings.HDRMiddleGray;
hcb.HDR_Threshold = Engine::GAPI->GetRendererState()->RendererSettings.BloomThreshold;
hcb.HDR_BloomStrength = Engine::GAPI->GetRendererState()->RendererSettings.BloomStrength;
hps->GetConstantBuffer()[0]->UpdateBuffer(&hcb);
hps->GetConstantBuffer()[0]->BindToPixelShader(0);
FxRenderer->CopyTextureToRTV(FxRenderer->GetTempBuffer()->GetShaderResView(), oldRTV, engine->GetResolution(), true);
// Show lumBuffer
//FxRenderer->CopyTextureToRTV(currentLum->GetShaderResView(), oldRTV, INT2(LUM_SIZE,LUM_SIZE), false);
// Restore rendertargets
ID3D11ShaderResourceView* srv = NULL;
engine->GetContext()->PSSetShaderResources(1,1,&srv);
engine->GetContext()->OMSetRenderTargets(1, &oldRTV, oldDSV);
if(oldRTV)oldRTV->Release();
if(oldDSV)oldDSV->Release();
return XR_SUCCESS;
}
bool FGLRenderBuffers::Setup(int width, int height, int sceneWidth, int sceneHeight)
{
if (gl_renderbuffers != BuffersActive)
{
if (BuffersActive)
glBindFramebuffer(GL_FRAMEBUFFER, mOutputFB);
BuffersActive = gl_renderbuffers;
GLRenderer->mShaderManager->ResetFixedColormap();
}
if (!IsEnabled())
return false;
if (width <= 0 || height <= 0)
I_FatalError("Requested invalid render buffer sizes: screen = %dx%d", width, height);
int samples = clamp((int)gl_multisample, 0, mMaxSamples);
bool needsSceneTextures = (gl_ssao != 0);
GLint activeTex;
GLint textureBinding;
glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTex);
glActiveTexture(GL_TEXTURE0);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &textureBinding);
if (width != mWidth || height != mHeight)
CreatePipeline(width, height);
if (width != mWidth || height != mHeight || mSamples != samples || mSceneUsesTextures != needsSceneTextures)
CreateScene(width, height, samples, needsSceneTextures);
mWidth = width;
mHeight = height;
mSamples = samples;
mSceneUsesTextures = needsSceneTextures;
// Bloom bluring buffers need to match the scene to avoid bloom bleeding artifacts
if (mSceneWidth != sceneWidth || mSceneHeight != sceneHeight)
{
CreateBloom(sceneWidth, sceneHeight);
CreateExposureLevels(sceneWidth, sceneHeight);
CreateAmbientOcclusion(sceneWidth, sceneHeight);
mSceneWidth = sceneWidth;
mSceneHeight = sceneHeight;
}
glBindTexture(GL_TEXTURE_2D, textureBinding);
glActiveTexture(activeTex);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
if (FailedCreate)
{
ClearScene();
ClearPipeline();
ClearEyeBuffers();
ClearBloom();
ClearExposureLevels();
mWidth = 0;
mHeight = 0;
mSamples = 0;
mSceneWidth = 0;
mSceneHeight = 0;
}
return !FailedCreate;
}
