private void InitializeShadowmapAndCubemaps(DeviceContext context, double timeElapsed)
{
m_ShadowCamera.m_CameraForward = new Vector3(-0.15f, -1.0f, 0.15f);
m_ShadowCamera.m_CameraForward.Normalize();
Vector3 min, max;
m_SimpleSceneWrapper.GetSceneBounds(out min, out max);
Vector3 sceneTop = (min + max) * 0.5f;
sceneTop.Y = max.Y;
m_ShadowCamera.m_OrthoZoomX = (max.X - min.X) * 0.7f; // some overlap
m_ShadowCamera.m_OrthoZoomY = (max.Z - min.Z) * 0.7f;
m_ShadowCamera.m_CameraPosition = sceneTop - m_ShadowCamera.m_CameraForward * 50.0f;
m_ShadowCamera.m_CameraUp = new Vector3(0, 0, 1);
CalculateAndUpdateConstantBuffer(context, timeElapsed);
m_ResolvedShadow = m_ShadowEVSMGenerator.RenderShadows(context, m_SimpleSceneWrapper);
context.PixelShader.SetShaderResource(m_GIRenderer.m_GIVolumeR.m_ShaderResourceView, 5);
context.PixelShader.SetShaderResource(m_GIRenderer.m_GIVolumeG.m_ShaderResourceView, 6);
context.PixelShader.SetShaderResource(m_GIRenderer.m_GIVolumeB.m_ShaderResourceView, 7);
m_ResolvedShadow.BindSRV(context, 0);
CubemapRenderHelper.RenderCubemap(context, m_CubeObject, m_CubeDepthObject, m_SimpleSceneWrapper, m_ViewportCamera.m_CameraPosition, 256.0f, false, new Color4(1.0f, 1.0f, 1.0f, 1.5f));
CubemapRenderHelper.GenerateCubemapMips(context, "PrefilterEnvLighting", m_CubeObjectFiltered, m_CubeObject);
m_ShadowsInitialized = true;
}
public void ExecutePass(DeviceContext context, SimpleSceneWrapper sceneWrapper, Vector3 position)
{
//using (new GpuProfilePoint(context, "CubemapRender"))
{
context.PixelShader.SetShaderResource(m_GIVolumeR.m_ShaderResourceView, 5);
context.PixelShader.SetShaderResource(m_GIVolumeG.m_ShaderResourceView, 6);
context.PixelShader.SetShaderResource(m_GIVolumeB.m_ShaderResourceView, 7);
CubemapRenderHelper.RenderCubemap(context, m_CubeObject, m_CubeObjectDepth, sceneWrapper, position, 50.0f, false, new Color4(1.0f, 0.75f, 0.75f, 1.0f));
}
//using (new GpuProfilePoint(context, "InitSH"))
{
context.PixelShader.SetShaderResource(m_CubeObject.m_ShaderResourceView, 0);
m_InitialSHSet.BindAsRenderTarget(context);
PostEffectHelper.RenderFullscreenTriangle(context, "GIInitSH");
RenderTargetSet.BindNull(context);
DownsamplePass(context, m_InitialSHSet, m_Downsampled16x16SHSetR, m_Downsampled16x16SHSetG, m_Downsampled16x16SHSetB);
m_Downsampled16x16SHSetR.BindSRV(context, 0);
m_Downsampled4x4SHSetR.BindAsRenderTarget(context);
PostEffectHelper.RenderFullscreenTriangle(context, "Downsample4x4");
RenderTargetSet.BindNull(context);
m_Downsampled16x16SHSetG.BindSRV(context, 0);
m_Downsampled4x4SHSetG.BindAsRenderTarget(context);
PostEffectHelper.RenderFullscreenTriangle(context, "Downsample4x4");
RenderTargetSet.BindNull(context);
m_Downsampled16x16SHSetB.BindSRV(context, 0);
m_Downsampled4x4SHSetB.BindAsRenderTarget(context);
PostEffectHelper.RenderFullscreenTriangle(context, "Downsample4x4");
RenderTargetSet.BindNull(context);
Vector3 sceneMin, sceneMax;
sceneWrapper.GetSceneBounds(out sceneMin, out sceneMax);
Vector3 positionInVolume = position - sceneMin;
positionInVolume.X = positionInVolume.X / (sceneMax.X - sceneMin.X);
positionInVolume.Y = positionInVolume.Y / (sceneMax.Y - sceneMin.Y);
positionInVolume.Z = positionInVolume.Z / (sceneMax.Z - sceneMin.Z);
dynamic scb = m_GIConstantBuffer;
scb.g_InjectPosition = new Vector4(new Vector3(positionInVolume.X * (float)(m_VolumeSizeX - 1), positionInVolume.Y * (float)(m_VolumeSizeY - 1), positionInVolume.Z * (float)(m_VolumeSizeZ - 1)), 0);
m_GIConstantBuffer.CompileAndBind(context);
m_Downsampled4x4SHSetR.BindSRV(context, 2);
m_Downsampled4x4SHSetG.BindSRV(context, 3);
m_Downsampled4x4SHSetB.BindSRV(context, 4);
context.ComputeShader.SetUnorderedAccessView(m_GIVolumeR.m_UnorderedAccessView, 0);
context.ComputeShader.SetUnorderedAccessView(m_GIVolumeG.m_UnorderedAccessView, 1);
context.ComputeShader.SetUnorderedAccessView(m_GIVolumeB.m_UnorderedAccessView, 2);
ShaderManager.ExecuteComputeForSize(context, 1, 1, 1, "InjectSHIntoVolume");
ContextHelper.ClearCSContext(context);
}
}