private void AttachPostProcessing(CommandBuffer commandBuffer, Material material, int w, int h, RenderTextureFormat defaultFormat,
RenderTargetIdentifier renderedImageId, WeatherMakerTemporalReprojectionState reprojState, Camera camera,
ref int postSourceId, ref RenderTargetIdentifier postSource)
{
if (material.passCount > 2)
{
if (renderedImageId == CameraTargetIdentifier())
{
Debug.LogError("Weather Maker command buffer post processing cannot blit directly to camera target");
}
else
{
int downsampleMain = WMS._MainTex2;
float postScale = (float)Mathf.Max((int)DownsampleScale, (int)DownsampleScalePostProcess);
commandBuffer.SetGlobalFloat(WMS._WeatherMakerDownsampleScale, postScale);
postSourceId = WMS._MainTex4;
postSource = new RenderTargetIdentifier(WMS._MainTex4);
commandBuffer.GetTemporaryRT(postSourceId, GetRenderTextureDescriptor((int)postScale, 0, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
if (reprojState == null)
{
if ((int)DownsampleScale < (int)DownsampleScalePostProcess)
{
// downsample main texture
commandBuffer.GetTemporaryRT(downsampleMain, GetRenderTextureDescriptor((int)postScale, 0, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
commandBuffer.GetTemporaryRT(postSourceId, GetRenderTextureDescriptor((int)postScale, 0, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
commandBuffer.SetGlobalTexture(WMS._MainTex2, downsampleMain);
commandBuffer.Blit(renderedImageId, downsampleMain);
commandBuffer.Blit(downsampleMain, postSourceId, material, 2);
commandBuffer.ReleaseTemporaryRT(downsampleMain);
}
else
{
commandBuffer.SetGlobalTexture(WMS._MainTex2, renderedImageId);
commandBuffer.Blit(renderedImageId, postSourceId, material, 2);
}
}
else if ((int)DownsampleScale * (int)reprojState.ReprojectionSize < (int)DownsampleScalePostProcess)
{
commandBuffer.GetTemporaryRT(downsampleMain, GetRenderTextureDescriptor((int)postScale, 0, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
commandBuffer.GetTemporaryRT(postSourceId, GetRenderTextureDescriptor((int)postScale, 0, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
commandBuffer.SetGlobalTexture(WMS._MainTex2, downsampleMain);
commandBuffer.Blit(reprojState.PrevFrameTexture, downsampleMain);
commandBuffer.Blit(downsampleMain, postSourceId, material, 2);
commandBuffer.ReleaseTemporaryRT(downsampleMain);
}
else
{
commandBuffer.SetGlobalTexture(WMS._MainTex2, reprojState.PrevFrameTexture);
commandBuffer.Blit(reprojState.PrevFrameTexture, postSourceId, material, 2);
}
commandBuffer.SetGlobalFloat(WMS._WeatherMakerDownsampleScale, (float)DownsampleScale);
commandBuffer.SetGlobalTexture(WMS._MainTex4, postSourceId);
commandBuffer.Blit(postSourceId, renderedImageId, material, 3); // pass index 3 is post process blit pass
commandBuffer.ReleaseTemporaryRT(postSourceId);
}
}
}
/// <summary>
/// Post render event
/// </summary>
/// <param name="camera">Camera</param>
public void PostRenderCamera(Camera camera)
{
if (camera != null && Enabled)
{
WeatherMakerTemporalReprojectionState reprojState = temporalStates.Find(b => b.Camera == camera);
if (reprojState != null)
{
reprojState.PostRenderFrame(camera);
}
}
}
private void AttachTemporalReprojection(CommandBuffer commandBuffer, WeatherMakerTemporalReprojectionState reprojState, RenderTargetIdentifier depthTarget,
RenderTargetIdentifier renderedImageId, Material material, int scale, RenderTextureFormat defaultFormat)
{
if (reprojState.NeedsFirstFrameHandling)
{
// do a more expensive render once to get the image looking nice, only happens once on first frame
commandBuffer.Blit(depthTarget, reprojState.PrevFrameTexture, material, 0);
// copy to sub frame so it's ready for next pass
commandBuffer.Blit(reprojState.PrevFrameTexture, reprojState.SubFrameTexture);
// copy to final image
commandBuffer.Blit(reprojState.PrevFrameTexture, renderedImageId);
}
else if (reprojState.IntegratedTemporalReprojection)
{
// render fast pass with offset temporal reprojection so it is available in the full pass
commandBuffer.SetGlobalFloat(WMS._WeatherMakerTemporalReprojectionEnabled, 1.0f);
commandBuffer.Blit(depthTarget, reprojState.SubFrameTexture, material, 0);
// perform full pass with full temporal reprojection
commandBuffer.SetGlobalFloat(WMS._WeatherMakerTemporalReprojectionEnabled, 2.0f);
commandBuffer.Blit(reprojState.SubFrameTexture, renderedImageId, material, 0);
// copy to previous frame so we can re-use it next frame
if (reprojState.BlendMode == WeatherMakerTemporalReprojectionState.TemporalReprojectionBlendMode.Blur)
{
commandBuffer.Blit(reprojState.SubFrameTexture, reprojState.PrevFrameTexture);
}
else
{
commandBuffer.Blit(renderedImageId, reprojState.PrevFrameTexture);
}
}
else
{
// render to sub frame (fast, this is a small texture)
commandBuffer.SetGlobalFloat(WMS._WeatherMakerTemporalReprojectionEnabled, 1.0f);
commandBuffer.Blit(depthTarget, reprojState.SubFrameTexture, material, 0);
// combine sub frame and prev frame to final image
commandBuffer.Blit(reprojState.PrevFrameTexture, renderedImageId, reprojState.TemporalReprojectionMaterial, 0);
// copy combined to previous frame for re-use next frame
commandBuffer.Blit(renderedImageId, reprojState.PrevFrameTexture);
}
commandBuffer.SetGlobalFloat(WMS._WeatherMakerTemporalReprojectionEnabled, 0.0f);
}
/// <summary>
/// Update the full screen effect, usually called from OnPreRender or OnPreCull
/// </summary>
/// <param name="camera">Camera</param>
/// <param name="integratedTemporalReprojection">Whether to use integrated temporal reprojection (if temporal reprojection is enabled)</param>
public void PreCullCamera(Camera camera, bool integratedTemporalReprojection = true)
{
//integratedTemporalReprojection = false;
if (WeatherMakerScript.Instance != null && WeatherMakerScript.Instance.CommandBufferManager != null && (Enabled || preSetupCommandBuffer != null) &&
Material != null && clonedMaterial != null && camera != null)
{
WeatherMakerCameraType cameraType = WeatherMakerScript.GetCameraType(camera);
if (cameraType == WeatherMakerCameraType.Other)
{
return;
}
WeatherMakerTemporalReprojectionState reprojState = null;
WeatherMakerDownsampleScale downsampleScale = DownsampleScale;
if (cameraType != WeatherMakerCameraType.Normal)
{
if (camera.pixelWidth > 2000)
{
downsampleScale = WeatherMakerDownsampleScale.QuarterResolution;
}
else if (camera.pixelWidth > 1000)
{
downsampleScale = WeatherMakerDownsampleScale.HalfResolution;
}
}
if (Enabled)
{
// setup temporal reprojection state
reprojState = temporalStates.Find(b => b.Camera == camera);
if (reprojState == null)
{
// temporal reprojection is not currently possible with cubemap
if (TemporalReprojection != WeatherMakerTemporalReprojectionSize.None && TemporalReprojectionMaterial != null &&
(cameraType == WeatherMakerCameraType.Normal || cameraType == WeatherMakerCameraType.Reflection))
{
reprojState = new WeatherMakerTemporalReprojectionState(camera, TemporalReprojectionMaterial, integratedTemporalReprojection);
temporalStates.Add(reprojState);
}
}
else if (TemporalReprojection == WeatherMakerTemporalReprojectionSize.None || TemporalReprojectionMaterial == null)
{
reprojState.Dispose();
temporalStates.Remove(reprojState);
reprojState = null;
}
if (reprojState != null)
{
WeatherMakerTemporalReprojectionSize reprojSize = (cameraType == WeatherMakerCameraType.Normal ? TemporalReprojection : WeatherMakerTemporalReprojectionSize.FourByFour);
reprojState.PreCullFrame(camera, downsampleScale, reprojSize);
}
}
WeatherMakerCommandBuffer cmdBuffer = CreateCommandBuffer(camera, reprojState, downsampleScale, preSetupCommandBuffer);
if (reprojState != null)
{
reprojState.CommandBuffer = cmdBuffer;
}
}
}
private WeatherMakerCommandBuffer CreateCommandBuffer(Camera camera, WeatherMakerTemporalReprojectionState reprojState, WeatherMakerDownsampleScale downsampleScale,
System.Action <WeatherMakerCommandBuffer> preSetupCommandBuffer)
{
if (WeatherMakerScript.Instance == null)
{
Debug.LogError("Cannot create command buffer, WeatherMakerScript.Instance is null");
return(null);
}
// Debug.Log("Creating command buffer " + CommandBufferName);
WeatherMakerCommandBuffer weatherMakerCommandBuffer = GetOrCreateWeatherMakerCommandBuffer(camera);
// multi-pass vr uses one command buffer for each eye
if (camera.stereoTargetEye == StereoTargetEyeMask.Right)
{
weatherMakerCommandBuffer.Camera = camera;
return(weatherMakerCommandBuffer);
}
else if (weatherMakerCommandBuffer != null && weatherMakerCommandBuffer.CommandBuffer != null)
{
camera.RemoveCommandBuffer(RenderQueue, weatherMakerCommandBuffer.CommandBuffer);
weatherMakerCommandBuffer.CommandBuffer.Clear();
}
RenderTextureFormat defaultFormat = (camera.allowHDR ? RenderTextureFormat.DefaultHDR : RenderTextureFormat.Default);
CommandBuffer commandBuffer = weatherMakerCommandBuffer.CommandBuffer;
int postSourceId = -1;
RenderTargetIdentifier postSource = postSourceId;
WeatherMakerCameraType cameraType = weatherMakerCommandBuffer.CameraType;
// setup reprojection state
if (reprojState != null)
{
reprojState.PreRenderFrame(camera, WeatherMakerCommandBufferManagerScript.BaseCamera, commandBuffer);
if (!reprojState.NeedsFirstFrameHandling && reprojState.BlendMode == WeatherMakerTemporalReprojectionState.TemporalReprojectionBlendMode.Sharp)
{
float xo = reprojState.TemporalOffsetX;
float yo = reprojState.TemporalOffsetY;
commandBuffer.SetGlobalVector(WMS._WeatherMakerTemporalUV, new Vector4(xo, yo, 1.0f, 1.0f));
}
else
{
commandBuffer.SetGlobalVector(WMS._WeatherMakerTemporalUV, Vector4.zero);
}
}
int scale = (int)downsampleScale;
if (reprojState != null && reprojState.BlendMode == WeatherMakerTemporalReprojectionState.TemporalReprojectionBlendMode.Blur)
{
int totalDownScale = (scale * reprojState.ReprojectionSize);
switch (totalDownScale)
{
case 0:
case 1:
totalDownScale = 1;
break;
case 2:
case 3:
totalDownScale = 2;
break;
case 4:
case 5:
totalDownScale = 4;
break;
case 6:
case 7:
case 8:
case 9:
case 10:
case 11:
totalDownScale = 8;
break;
default:
totalDownScale = 16;
break;
}
//Debug.LogFormat("Total down scale: {0}, {1}, {2}", totalDownScale, scale, reprojState.ReprojectionSize);
commandBuffer.SetGlobalFloat(WMS._WeatherMakerDownsampleScale, (float)totalDownScale);
}
else
{
commandBuffer.SetGlobalFloat(WMS._WeatherMakerDownsampleScale, scale);
}
if (preSetupCommandBuffer != null)
{
preSetupCommandBuffer.Invoke(weatherMakerCommandBuffer);
}
if (Enabled)
{
commandBuffer.SetGlobalFloat(WMS._WeatherMakerTemporalReprojectionEnabled, 0.0f);
commandBuffer.SetGlobalVector(WMS._WeatherMakerTemporalUV_VertexShaderProjection, Vector4.zero);
commandBuffer.SetGlobalVector(WMS._WeatherMakerTemporalUV_FragmentShader, Vector4.zero);
if (DownsampleRenderBufferScale != WeatherMakerDownsampleScale.Disabled)
{
// render camera target to texture, performing separate down-sampling
commandBuffer.GetTemporaryRT(WMS._MainTex5, GetRenderTextureDescriptor((int)DownsampleRenderBufferScale, 0, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
commandBuffer.Blit(CameraTargetIdentifier(), WMS._MainTex5);
}
commandBuffer.SetGlobalFloat(WMS._ZTest, (float)ZTest);
// if no blur, no downsample, no temporal reprojection and no post processing (pass count > 2) then we can just draw directly to camera target
if (BlurShaderType == BlurShaderType.None && DownsampleScale == WeatherMakerDownsampleScale.FullResolution && reprojState == null && clonedMaterial.passCount < 3)
{
// set blend mode for blitting to camera target
commandBuffer.SetGlobalFloat(WMS._SrcBlendMode, (float)SourceBlendMode);
commandBuffer.SetGlobalFloat(WMS._DstBlendMode, (float)DestBlendMode);
commandBuffer.Blit(CameraTargetIdentifier(), CameraTargetIdentifier(), clonedMaterial, 0);
}
else
{
// render to texture, using current image target as input _MainTex, no blend
// alpha or blue will use _MainTex to render the final result
int renderTargetRenderedImageId = WMS._MainTex3;
int renderTargetDepthTextureId = WMS._WeatherMakerTemporaryDepthTexture;
RenderTargetIdentifier renderTargetRenderedImage = new RenderTargetIdentifier(renderTargetRenderedImageId);
RenderTargetIdentifier renderTargetDepthTexture = new RenderTargetIdentifier(renderTargetDepthTextureId);
BlurShaderType blur = BlurShaderType;
if (cameraType != WeatherMakerCameraType.Normal)
{
if (BlurMaterial.passCount > 3)
{
blur = BlurShaderType.Bilateral;
}
else
{
blur = BlurShaderType.GaussianBlur17;
}
}
int mod = (reprojState == null ? 0 : reprojState.ReprojectionSize);
commandBuffer.GetTemporaryRT(renderTargetRenderedImageId, GetRenderTextureDescriptor(scale, mod, 1, defaultFormat, 0, camera), FilterMode.Bilinear);
commandBuffer.GetTemporaryRT(renderTargetDepthTextureId, GetRenderTextureDescriptor(scale, mod, 1, RenderTextureFormat.RFloat, 0, camera), FilterMode.Point);
// set blend mode for blitting to render texture
commandBuffer.SetGlobalFloat(WMS._SrcBlendMode, (float)BlendMode.One);
commandBuffer.SetGlobalFloat(WMS._DstBlendMode, (float)BlendMode.Zero);
if (reprojState == null || reprojState.TemporalReprojectionMaterial == null)
{
// render to final destination
commandBuffer.Blit(renderTargetDepthTextureId, renderTargetRenderedImage, clonedMaterial, 0);
}
else
{
AttachTemporalReprojection(commandBuffer, reprojState, renderTargetDepthTextureId, renderTargetRenderedImage, clonedMaterial, scale, defaultFormat);
}
if (cameraType == WeatherMakerCameraType.Normal && DownsampleScalePostProcess != WeatherMakerDownsampleScale.Disabled)
{
AttachPostProcessing(commandBuffer, clonedMaterial, 0, 0, defaultFormat, renderTargetRenderedImage, reprojState, camera, ref postSourceId, ref postSource);
//AttachPostProcessing(commandBuffer, material, w, h, defaultFormat, renderTargetRenderedImageId, reprojState, ref postSourceId, ref postSource);
}
AttachBlurBlit(commandBuffer, renderTargetRenderedImage, renderTargetDepthTexture, CameraTargetIdentifier(), clonedMaterial, blur, defaultFormat, camera);
// cleanup
commandBuffer.ReleaseTemporaryRT(renderTargetRenderedImageId);
commandBuffer.ReleaseTemporaryRT(renderTargetDepthTextureId);
commandBuffer.SetGlobalTexture(WMS._MainTex2, new RenderTargetIdentifier(BuiltinRenderTextureType.None));
}
if (DownsampleRenderBufferScale != WeatherMakerDownsampleScale.Disabled)
{
// cleanup
commandBuffer.ReleaseTemporaryRT(WMS._MainTex5);
}
}
weatherMakerCommandBuffer.Material = clonedMaterial;
weatherMakerCommandBuffer.ReprojectionState = reprojState;
weatherMakerCommandBuffer.RenderQueue = RenderQueue;
camera.AddCommandBuffer(RenderQueue, commandBuffer);
if (WeatherMakerCommandBufferManagerScript.Instance != null)
{
WeatherMakerCommandBufferManagerScript.Instance.AddCommandBuffer(weatherMakerCommandBuffer);
}
return(weatherMakerCommandBuffer);
}