void CommandBuffer_FillApplyDeferred(CommandBuffer cb, TargetDesc target, bool logTarget)
{
cb.SetGlobalTexture("_AO_OcclusionTexture", m_occlusionRT);
m_applyDeferredTargets[0] = BuiltinRenderTextureType.GBuffer0;
m_applyDeferredTargets[1] = logTarget ? BuiltinRenderTextureType.GBuffer3 : BuiltinRenderTextureType.CameraTarget;
if (!logTarget)
{
SetBlitTarget(cb, m_applyDeferredTargets, target.fullWidth, target.fullHeight);
PerformBlit(cb, m_occlusionMat, ShaderPass.ApplyDeferred);
}
else
{
int gbufferAlbedoRT = SafeAllocateTemporaryRT(cb, "_AO_GBufferAlbedo", target.fullWidth, target.fullHeight, RenderTextureFormat.ARGB32);
int gbufferEmissionRT = SafeAllocateTemporaryRT(cb, "_AO_GBufferEmission", target.fullWidth, target.fullHeight, RenderTextureFormat.ARGB32);
cb.Blit(m_applyDeferredTargets[0], gbufferAlbedoRT);
cb.Blit(m_applyDeferredTargets[1], gbufferEmissionRT);
cb.SetGlobalTexture("_AO_GBufferAlbedo", gbufferAlbedoRT);
cb.SetGlobalTexture("_AO_GBufferEmission", gbufferEmissionRT);
SetBlitTarget(cb, m_applyDeferredTargets, target.fullWidth, target.fullHeight);
PerformBlit(cb, m_occlusionMat, ShaderPass.ApplyDeferredLog);
SafeReleaseTemporaryRT(cb, gbufferAlbedoRT);
SafeReleaseTemporaryRT(cb, gbufferEmissionRT);
}
cb.SetRenderTarget(default(RenderTexture));
}
void CommandBuffer_Rebuild(TargetDesc target)
{
bool gbufferSource = (PerPixelNormals == PerPixelNormalSource.GBuffer || PerPixelNormals == PerPixelNormalSource.GBufferOctaEncoded);
CommandBuffer cb = null;
CameraEvent stage = gbufferSource ? CameraEvent.AfterLighting : CameraEvent.BeforeImageEffectsOpaque;
if (ApplyMethod == ApplicationMethod.Debug)
{
cb = CommandBuffer_AllocateRegister(stage);
CommandBuffer_FillComputeOcclusion(cb, target);
CommandBuffer_FillApplyDebug(cb, target);
}
else
{
bool logTarget = (!m_camera.hdr && gbufferSource);
stage = (ApplyMethod == ApplicationMethod.Deferred) ? CameraEvent.BeforeReflections : stage;
cb = CommandBuffer_AllocateRegister(stage);
CommandBuffer_FillComputeOcclusion(cb, target);
if (ApplyMethod == ApplicationMethod.PostEffect)
{
CommandBuffer_FillApplyPostEffect(cb, target, logTarget);
}
else if (ApplyMethod == ApplicationMethod.Deferred)
{
CommandBuffer_FillApplyDeferred(cb, target, logTarget);
}
}
}
void CommandBuffer_FillApplyPostEffect(CommandBuffer cb, TargetDesc target, bool logTarget)
{
cb.SetGlobalTexture("_AO_OcclusionTexture", m_occlusionRT);
if (!logTarget)
{
SetBlitTarget(cb, BuiltinRenderTextureType.CameraTarget, target.fullWidth, target.fullHeight);
PerformBlit(cb, m_occlusionMat, ShaderPass.ApplyPostEffect);
}
else
{
int gbufferEmissionRT = SafeAllocateTemporaryRT(cb, "_AO_GBufferEmission", target.fullWidth, target.fullHeight, RenderTextureFormat.ARGB32);
cb.Blit(BuiltinRenderTextureType.GBuffer3, gbufferEmissionRT);
cb.SetGlobalTexture("_AO_GBufferEmission", gbufferEmissionRT);
SetBlitTarget(cb, BuiltinRenderTextureType.GBuffer3, target.fullWidth, target.fullHeight);
PerformBlit(cb, m_occlusionMat, ShaderPass.ApplyPostEffectLog);
SafeReleaseTemporaryRT(cb, gbufferEmissionRT);
}
cb.SetRenderTarget(default(RenderTexture));
}
void UpdateGlobalShaderConstants(TargetDesc target)
{
float fovRad = m_camera.fieldOfView * Mathf.Deg2Rad;
Vector2 focalLen = new Vector2(1.0f / Mathf.Tan(fovRad * 0.5f) * (target.height / ( float )target.width), 1.0f / Mathf.Tan(fovRad * 0.5f));
Vector2 invFocalLen = new Vector2(1.0f / focalLen.x, 1.0f / focalLen.y);
float projScale;
if (m_camera.orthographic)
{
projScale = (( float )target.height) / m_camera.orthographicSize;
}
else
{
projScale = (( float )target.height) / (Mathf.Tan(fovRad * 0.5f) * 2.0f);
}
float bias = Mathf.Clamp(Bias, 0.0f, 1.0f);
Shader.SetGlobalMatrix("_AO_CameraProj", GL.GetGPUProjectionMatrix(Matrix4x4.Ortho(0, 1, 0, 1, -1, 100), false));
Shader.SetGlobalMatrix("_AO_CameraView", m_camera.worldToCameraMatrix);
Shader.SetGlobalVector("_AO_UVToView", new Vector4(2.0f * invFocalLen.x, -2.0f * invFocalLen.y, -1.0f * invFocalLen.x, 1.0f * invFocalLen.y));
Shader.SetGlobalFloat("_AO_NegRcpR2", -1.0f / (Radius * Radius));
Shader.SetGlobalFloat("_AO_RadiusToScreen", Radius * 0.5f * projScale);
Shader.SetGlobalFloat("_AO_PowExponent", PowerExponent);
Shader.SetGlobalFloat("_AO_Bias", bias);
Shader.SetGlobalFloat("_AO_Multiplier", 1.0f / (1.0f - bias));
Shader.SetGlobalFloat("_AO_BlurSharpness", BlurSharpness);
Shader.SetGlobalColor("_AO_Levels", new Color(Tint.r, Tint.g, Tint.b, Intensity));
}
void CommandBuffer_FillApplyDebug(CommandBuffer cb, TargetDesc target)
{
cb.SetGlobalTexture("_AO_OcclusionTexture", m_occlusionRT);
SetBlitTarget(cb, BuiltinRenderTextureType.CameraTarget, target.fullWidth, target.fullHeight);
PerformBlit(cb, m_occlusionMat, ShaderPass.ApplyDebug);
cb.SetRenderTarget(default(RenderTexture));
}
void UpdateGlobalShaderConstants(TargetDesc target)
{
float fovRad = m_camera.fieldOfView * Mathf.Deg2Rad;
Vector2 focalLen = new Vector2(1.0f / Mathf.Tan(fovRad * 0.5f) * (target.height / ( float )target.width), 1.0f / Mathf.Tan(fovRad * 0.5f));
Vector2 invFocalLen = new Vector2(1.0f / focalLen.x, 1.0f / focalLen.y);
float projScale;
if (m_camera.orthographic)
{
projScale = (( float )target.height) / m_camera.orthographicSize;
}
else
{
projScale = (( float )target.height) / (Mathf.Tan(fovRad * 0.5f) * 2.0f);
}
float bias = Mathf.Clamp(Bias, 0.0f, 1.0f);
FadeStart = Mathf.Max(0.0f, FadeStart);
FadeLength = Mathf.Max(0.01f, FadeLength);
float rcpFadeLength = FadeEnabled ? 1.0f / FadeLength : 0.0f;
Shader.SetGlobalMatrix("_AO_CameraProj", GL.GetGPUProjectionMatrix(Matrix4x4.Ortho(0, 1, 0, 1, -1, 100), false));
Shader.SetGlobalMatrix("_AO_CameraView", m_camera.worldToCameraMatrix);
Shader.SetGlobalVector("_AO_UVToView", new Vector4(2.0f * invFocalLen.x, -2.0f * invFocalLen.y, -1.0f * invFocalLen.x, 1.0f * invFocalLen.y));
Shader.SetGlobalFloat("_AO_HalfProjScale", 0.5f * projScale);
Shader.SetGlobalFloat("_AO_Radius", Radius);
Shader.SetGlobalFloat("_AO_PowExponent", PowerExponent);
Shader.SetGlobalFloat("_AO_Bias", bias);
Shader.SetGlobalFloat("_AO_Multiplier", 1.0f / (1.0f - bias));
Shader.SetGlobalFloat("_AO_BlurSharpness", BlurSharpness);
Shader.SetGlobalColor("_AO_Levels", new Color(Tint.r, Tint.g, Tint.b, Intensity));
Shader.SetGlobalVector("_AO_FadeParams", new Vector2(FadeStart, rcpFadeLength));
Shader.SetGlobalVector("_AO_FadeValues", new Vector3(FadeToIntensity, FadeToRadius, FadeToPowerExponent));
}
void CommandBuffer_Rebuild(TargetDesc target)
{
bool gbufferSource = (PerPixelNormals == PerPixelNormalSource.GBuffer || PerPixelNormals == PerPixelNormalSource.GBufferOctaEncoded);
CommandBuffer cb = null;
// NOTE: applying occlusion after lighting when using gbuffer normals avoids seethrough on forward materials in deferred mode
CameraEvent stage = gbufferSource ? CameraEvent.AfterLighting : CameraEvent.BeforeImageEffectsOpaque;
if (ApplyMethod == ApplicationMethod.Debug)
{
cb = CommandBuffer_AllocateRegister(stage);
CommandBuffer_FillComputeOcclusion(cb, target);
CommandBuffer_FillApplyDebug(cb, target);
}
else
{
#if UNITY_5_6_OR_NEWER
bool hdr = m_camera.allowHDR;
#else
bool hdr = m_camera.hdr;
#endif
bool logTarget = (!hdr && gbufferSource);
stage = (ApplyMethod == ApplicationMethod.Deferred) ? CameraEvent.BeforeReflections : stage;
cb = CommandBuffer_AllocateRegister(stage);
CommandBuffer_FillComputeOcclusion(cb, target);
if (ApplyMethod == ApplicationMethod.PostEffect)
{
CommandBuffer_FillApplyPostEffect(cb, target, logTarget);
}
else if (ApplyMethod == ApplicationMethod.Deferred)
{
CommandBuffer_FillApplyDeferred(cb, target, logTarget);
}
}
}
void CommandBuffer_FillComputeOcclusion(CommandBuffer cb, TargetDesc target)
{
CheckMaterial();
CheckRandomData();
cb.SetGlobalVector("_AO_Buffer_PadScale", new Vector4(target.padRatioWidth, target.padRatioHeight, 1.0f / target.padRatioWidth, 1.0f / target.padRatioHeight));
cb.SetGlobalVector("_AO_Buffer_TexelSize", new Vector4(1.0f / target.width, 1.0f / target.height, target.width, target.height));
cb.SetGlobalVector("_AO_QuarterBuffer_TexelSize", new Vector4(1.0f / target.quarterWidth, 1.0f / target.quarterHeight, target.quarterWidth, target.quarterHeight));
cb.SetGlobalFloat("_AO_MaxRadiusPixels", Mathf.Min(target.width, target.height));
if (m_occlusionRT == null || m_occlusionRT.width != target.width || m_occlusionRT.height != target.height || !m_occlusionRT.IsCreated())
{
SafeReleaseRT(ref m_occlusionRT);
m_occlusionRT = SafeAllocateRT("_AO_OcclusionTexture", target.width, target.height, RenderTextureFormat.RGHalf, RenderTextureReadWrite.Linear);
}
int smallOcclusionRT = -1;
if (Downsample)
{
smallOcclusionRT = SafeAllocateTemporaryRT(cb, "_AO_SmallOcclusionTexture", target.width / 2, target.height / 2, RenderTextureFormat.RGHalf, RenderTextureReadWrite.Linear, FilterMode.Bilinear);
}
// Ambient Occlusion
if (CacheAware && !Downsample)
{
int occlusionAtlasRT = SafeAllocateTemporaryRT(cb, "_AO_OcclusionAtlas", target.width, target.height, RenderTextureFormat.RGHalf, RenderTextureReadWrite.Linear);
for (int i = 0; i < 16; i++)
{
m_depthLayerRT[i] = SafeAllocateTemporaryRT(cb, m_layerDepthNames[i], target.quarterWidth, target.quarterHeight, RenderTextureFormat.RFloat, RenderTextureReadWrite.Linear);
m_normalLayerRT[i] = SafeAllocateTemporaryRT(cb, m_layerNormalNames[i], target.quarterWidth, target.quarterHeight, RenderTextureFormat.ARGB2101010, RenderTextureReadWrite.Linear);
m_occlusionLayerRT[i] = SafeAllocateTemporaryRT(cb, m_layerOcclusionNames[i], target.quarterWidth, target.quarterHeight, RenderTextureFormat.RGHalf, RenderTextureReadWrite.Linear);
}
// Deinterleaved Normal + Depth
for (int scan = 0; scan < 16; scan += m_mrtCount)
{
for (int i = 0; i < m_mrtCount; i++)
{
int layer = i + scan;
int x = layer & 3;
int y = layer >> 2;
cb.SetGlobalVector(m_layerOffsetNames[i], new Vector2(x + 0.5f, y + 0.5f));
m_depthTargets[i] = m_depthLayerRT[layer];
m_normalTargets[i] = m_normalLayerRT[layer];
}
SetBlitTarget(cb, m_depthTargets, target.quarterWidth, target.quarterHeight);
PerformBlit(cb, m_occlusionMat, m_deinterleaveDepthPass);
SetBlitTarget(cb, m_normalTargets, target.quarterWidth, target.quarterHeight);
PerformBlit(cb, m_occlusionMat, m_deinterleaveNormalPass + ( int )PerPixelNormals);
}
// Deinterleaved Occlusion
for (int i = 0; i < 16; i++)
{
cb.SetGlobalVector("_AO_LayerOffset", new Vector2((i & 3) + 0.5f, (i >> 2) + 0.5f));
cb.SetGlobalVector("_AO_LayerRandom", m_randomData[i]);
cb.SetGlobalTexture("_AO_NormalTexture", m_normalLayerRT[i]);
cb.SetGlobalTexture("_AO_DepthTexture", m_depthLayerRT[i]);
SetBlitTarget(cb, m_occlusionLayerRT[i], target.quarterWidth, target.quarterHeight);
PerformBlit(cb, m_occlusionMat, ShaderPass.OcclusionCache_Low + ( int )SampleCount);
}
// Reinterleave
SetBlitTarget(cb, occlusionAtlasRT, target.width, target.height);
for (int i = 0; i < 16; i++)
{
int dst_x = (i & 3) * target.quarterWidth;
int dst_y = (i >> 2) * target.quarterHeight;
PerformBlit(cb, m_occlusionLayerRT[i], target.quarterWidth, target.quarterHeight, m_copyMat, ShaderPass.Copy, dst_x, dst_y);
}
cb.SetGlobalTexture("_AO_OcclusionAtlas", occlusionAtlasRT);
SetBlitTarget(cb, m_occlusionRT, target.width, target.height);
PerformBlit(cb, m_occlusionMat, ShaderPass.Reinterleave);
for (int i = 0; i < 16; i++)
{
SafeReleaseTemporaryRT(cb, m_occlusionLayerRT[i]);
SafeReleaseTemporaryRT(cb, m_normalLayerRT[i]);
SafeReleaseTemporaryRT(cb, m_depthLayerRT[i]);
}
SafeReleaseTemporaryRT(cb, occlusionAtlasRT);
}
else
{
m_occlusionMat.SetTexture("_AO_RandomTexture", m_randomTex);
int occlusionPass = (ShaderPass.OcclusionLow_None + (( int )SampleCount) * PerPixelNormalSourceCount + (( int )PerPixelNormals));
if (Downsample)
{
cb.Blit((Texture)null, new RenderTargetIdentifier(smallOcclusionRT), m_occlusionMat, occlusionPass);
SetBlitTarget(cb, m_occlusionRT, target.width, target.height);
PerformBlit(cb, smallOcclusionRT, target.width / 2, target.height / 2, m_occlusionMat, ShaderPass.CombineDownsampledOcclusionDepth);
}
else
{
cb.Blit((Texture)null, m_occlusionRT, m_occlusionMat, occlusionPass);
}
}
if (BlurEnabled)
{
int tempRT = SafeAllocateTemporaryRT(cb, "_AO_TEMP", target.width, target.height, RenderTextureFormat.RGHalf, RenderTextureReadWrite.Linear);
// Apply Cross Bilateral Blur
for (int i = 0; i < BlurPasses; i++)
{
SetBlitTarget(cb, tempRT, target.width, target.height);
PerformBlit(cb, m_occlusionRT, target.width, target.height, m_blurMat, ShaderPass.BlurHorizontal1 + (BlurRadius - 1) * 2);
SetBlitTarget(cb, m_occlusionRT, target.width, target.height);
PerformBlit(cb, tempRT, target.width, target.height, m_blurMat, ShaderPass.BlurVertical1 + (BlurRadius - 1) * 2);
}
SafeReleaseTemporaryRT(cb, tempRT);
}
if (Downsample && smallOcclusionRT >= 0)
{
SafeReleaseTemporaryRT(cb, smallOcclusionRT);
}
cb.SetRenderTarget(default(RenderTexture));
}
public static extern void Compile([In] ref SourceDesc source, [In] ref TargetDesc target, out ResultDesc result);
