public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
{
if (!m_IsSetup)
{
return;
}
#if VOLUME_RESOURCE_IS_RENDERTEXTURE3D
m_ClearGroupSize = m_GraphicResources.GetVolumeSize() / 8;
// Clear volume render texture and count buffer...
if (m_Settings._ClearBuffersComputeShader != null)
{
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.CLEAR_ALL_VOLUME_BUFFERS);
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.UINTCOLOR_VOLUME_BUFFER, m_GraphicResources.GetUintColorVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COUNT_VOLUME_BUFFER, m_GraphicResources.GetCountVolumeBuffer());
commandBuffer.SetComputeTextureParam(m_Settings._ClearBuffersComputeShader, 0, VoxelGIShaderPropIDs.VOLUME_RENDER_TEXTURE_3D, m_GraphicResources.GetVolumeRenderTexture3D());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.DispatchCompute(m_Settings._ClearBuffersComputeShader, 0, m_ClearGroupSize, m_ClearGroupSize, m_ClearGroupSize);
context.ExecuteCommandBuffer(commandBuffer);
CommandBufferPool.Release(commandBuffer);
}
#else
m_ClearGroupSize = m_GraphicResources.GetVolumeSize() / 8;
m_OctreeGroupSize = m_GraphicResources.GetVolumeSize() / 2;
// Clear structure buffer
if (m_Settings._ClearBuffersComputeShader != null)
{
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.CLEAR_ALL_VOLUME_BUFFERS);
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.UINTCOLOR_VOLUME_BUFFER, m_GraphicResources.GetUintColorVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COUNT_VOLUME_BUFFER, m_GraphicResources.GetCountVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COLOR_VOLUME_BUFFER, m_GraphicResources.GetColorVolumeBuffer());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.OCTREE_INDEX_BUFFER, m_GraphicResources.GetOctreeIndexBuffer());
commandBuffer.DispatchCompute(m_Settings._ClearBuffersComputeShader, 0, m_ClearGroupSize, m_ClearGroupSize, m_ClearGroupSize);
context.ExecuteCommandBuffer(commandBuffer);
CommandBufferPool.Release(commandBuffer);
}
#endif
// Render all to the volume buffer
if (m_Settings._DrawObjectShader != null)
{
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.DRAW_OBJECT_INTO_VOLUME);
commandBuffer.SetRandomWriteTarget(3, m_GraphicResources.GetUintColorVolumeBuffer());
commandBuffer.SetRandomWriteTarget(4, m_GraphicResources.GetCountVolumeBuffer());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.SetGlobalFloat(VoxelGIShaderPropIDs.VOXEL_SIZE, m_GraphicResources.GetVoxelSize());
commandBuffer.SetGlobalVector(VoxelGIShaderPropIDs.MAIN_CAMERA_WORLD_POS, VoxelGICamera.GetMainCameraWorldPos());
int count = VoxelGIRenderingDataManager.GetDataCount();
for (int i = 0; i < count; ++i)
{
var data = VoxelGIRenderingDataManager.GetDataAt(i);
if (!data.IsActive())
{
continue;
}
var material = data.GetMatrial(m_Settings._DrawObjectShader);
commandBuffer.DrawMesh(data.GetMesh(), data.GetModelMatrix(), material, data.GetSubMeshIndex(), 0);
}
context.ExecuteCommandBuffer(commandBuffer);
commandBuffer.Clear();
commandBuffer.ClearRandomWriteTargets();
context.ExecuteCommandBuffer(commandBuffer);
CommandBufferPool.Release(commandBuffer);
}
#if VOLUME_RESOURCE_IS_RENDERTEXTURE3D
// Calculate average color values for each voxel in volume render texture
// And also generate volume render texture mipmaps...
if (m_Settings._AverageColorsComputeShader != null)
{
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.AVERAGE_COLORS);
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.UINTCOLOR_VOLUME_BUFFER, m_GraphicResources.GetUintColorVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COUNT_VOLUME_BUFFER, m_GraphicResources.GetCountVolumeBuffer());
commandBuffer.SetComputeTextureParam(m_Settings._AverageColorsComputeShader, 0, VoxelGIShaderPropIDs.VOLUME_RENDER_TEXTURE_3D, m_GraphicResources.GetVolumeRenderTexture3D());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.DispatchCompute(m_Settings._AverageColorsComputeShader, 0, m_ClearGroupSize, m_ClearGroupSize, m_ClearGroupSize);
commandBuffer.GenerateMips(m_GraphicResources.GetVolumeRenderTexture3D());
context.ExecuteCommandBuffer(commandBuffer);
CommandBufferPool.Release(commandBuffer);
}
#else
// Calculate average color values for each voxel in volume buffer
if (m_Settings._AverageColorsComputeShader != null)
{
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.AVERAGE_COLORS);
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.UINTCOLOR_VOLUME_BUFFER, m_GraphicResources.GetUintColorVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COUNT_VOLUME_BUFFER, m_GraphicResources.GetCountVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COLOR_VOLUME_BUFFER, m_GraphicResources.GetColorVolumeBuffer());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.DispatchCompute(m_Settings._AverageColorsComputeShader, 0, m_ClearGroupSize, m_ClearGroupSize, m_ClearGroupSize);
context.ExecuteCommandBuffer(commandBuffer);
CommandBufferPool.Release(commandBuffer);
}
// Generate octree from the volume buffer
if (m_Settings._GenerateOctreeComputeShader != null)
{
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.GENERATE_OCTREE_BUFFER);
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.OCTREE_BUFFER, m_GraphicResources.GetOctreeBuffer());
commandBuffer.DispatchCompute(m_Settings._GenerateOctreeComputeShader, 0, m_OctreeGroupSize, m_OctreeGroupSize, m_OctreeGroupSize);
context.ExecuteCommandBuffer(commandBuffer);
CommandBufferPool.Release(commandBuffer);
}
#endif
// Return back to original camera view
}
public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
{
if (m_DrawFullScreenMaterial != null)
{
#if VOLUME_RESOURCE_IS_RENDERTEXTURE3D
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.POSTPROCESS_GLOBAL_ILLUMINATION);
commandBuffer.SetGlobalTexture(VoxelGIShaderPropIDs.VOLUME_RENDER_TEXTURE_3D, m_GraphicResources.GetVolumeRenderTexture3D());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_MIP_COUNT, m_GraphicResources.GetVolumeMipCount());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.SetGlobalFloat(VoxelGIShaderPropIDs.VOXEL_SIZE, m_GraphicResources.GetVoxelSize());
commandBuffer.SetGlobalVector(VoxelGIShaderPropIDs.MAIN_CAMERA_WORLD_POS, VoxelGICamera.GetMainCameraWorldPos());
var matrix = renderingData.cameraData.camera.transform.localToWorldMatrix * Matrix4x4.Translate(Vector3.forward * (renderingData.cameraData.camera.nearClipPlane + 0.01f));
commandBuffer.DrawMesh(RenderingUtils.fullscreenMesh, matrix, m_DrawFullScreenMaterial, 0, 0);
context.ExecuteCommandBuffer(commandBuffer);
#else
var commandBuffer = CommandBufferPool.Get(CommandBufferNames.POSTPROCESS_GLOBAL_ILLUMINATION);
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.COLOR_VOLUME_BUFFER, m_GraphicResources.GetColorVolumeBuffer());
commandBuffer.SetGlobalBuffer(VoxelGIShaderPropIDs.OCTREE_BUFFER, m_GraphicResources.GetOctreeBuffer());
commandBuffer.SetGlobalInt(VoxelGIShaderPropIDs.VOLUME_SIZE, m_GraphicResources.GetVolumeSize());
commandBuffer.SetGlobalFloat(VoxelGIShaderPropIDs.VOXEL_SIZE, m_GraphicResources.GetVoxelSize());
commandBuffer.SetGlobalVector(VoxelGIShaderPropIDs.MAIN_CAMERA_WORLD_POS, VoxelGICamera.GetMainCameraWorldPos());
var matrix = renderingData.cameraData.camera.transform.localToWorldMatrix * Matrix4x4.Translate(Vector3.forward * (renderingData.cameraData.camera.nearClipPlane + 0.01f));
commandBuffer.DrawMesh(RenderingUtils.fullscreenMesh, matrix, m_DrawFullScreenMaterial, 0, 0);
context.ExecuteCommandBuffer(commandBuffer);
#endif
}
}