private void CommandBuffer_Rebuild(AmplifyOcclusionBase.TargetDesc target)
{
bool flag = this.PerPixelNormals == AmplifyOcclusionBase.PerPixelNormalSource.GBuffer || this.PerPixelNormals == AmplifyOcclusionBase.PerPixelNormalSource.GBufferOctaEncoded;
CameraEvent cameraEvent = (!flag) ? CameraEvent.BeforeImageEffectsOpaque : CameraEvent.AfterLighting;
if (this.ApplyMethod == AmplifyOcclusionBase.ApplicationMethod.Debug)
{
CommandBuffer cb = this.CommandBuffer_AllocateRegister(cameraEvent);
this.CommandBuffer_FillComputeOcclusion(cb, target);
this.CommandBuffer_FillApplyDebug(cb, target);
}
else
{
bool logTarget = !this.m_camera.allowHDR && flag;
cameraEvent = ((this.ApplyMethod != AmplifyOcclusionBase.ApplicationMethod.Deferred) ? cameraEvent : CameraEvent.BeforeReflections);
CommandBuffer cb = this.CommandBuffer_AllocateRegister(cameraEvent);
this.CommandBuffer_FillComputeOcclusion(cb, target);
if (this.ApplyMethod == AmplifyOcclusionBase.ApplicationMethod.PostEffect)
{
this.CommandBuffer_FillApplyPostEffect(cb, target, logTarget);
}
else if (this.ApplyMethod == AmplifyOcclusionBase.ApplicationMethod.Deferred)
{
this.CommandBuffer_FillApplyDeferred(cb, target, logTarget);
}
}
}
private void CommandBuffer_FillApplyDebug(CommandBuffer cb, AmplifyOcclusionBase.TargetDesc target)
{
cb.SetGlobalTexture("_AO_OcclusionTexture", this.m_occlusionRT);
this.SetBlitTarget(cb, BuiltinRenderTextureType.CameraTarget, target.fullWidth, target.fullHeight);
this.PerformBlit(cb, this.m_occlusionMat, 36);
cb.SetRenderTarget(null);
}
private void CommandBuffer_FillApplyDeferred(CommandBuffer cb, AmplifyOcclusionBase.TargetDesc target, bool logTarget)
{
cb.SetGlobalTexture("_AO_OcclusionTexture", this.m_occlusionRT);
this.m_applyDeferredTargets[0] = BuiltinRenderTextureType.GBuffer0;
this.m_applyDeferredTargets[1] = ((!logTarget) ? BuiltinRenderTextureType.CameraTarget : BuiltinRenderTextureType.GBuffer3);
if (!logTarget)
{
this.SetBlitTarget(cb, this.m_applyDeferredTargets, target.fullWidth, target.fullHeight);
this.PerformBlit(cb, this.m_occlusionMat, 37);
}
else
{
int num = this.SafeAllocateTemporaryRT(cb, "_AO_GBufferAlbedo", target.fullWidth, target.fullHeight, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Default, FilterMode.Point);
int num2 = this.SafeAllocateTemporaryRT(cb, "_AO_GBufferEmission", target.fullWidth, target.fullHeight, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Default, FilterMode.Point);
cb.Blit(this.m_applyDeferredTargets[0], num);
cb.Blit(this.m_applyDeferredTargets[1], num2);
cb.SetGlobalTexture("_AO_GBufferAlbedo", num);
cb.SetGlobalTexture("_AO_GBufferEmission", num2);
this.SetBlitTarget(cb, this.m_applyDeferredTargets, target.fullWidth, target.fullHeight);
this.PerformBlit(cb, this.m_occlusionMat, 38);
this.SafeReleaseTemporaryRT(cb, num);
this.SafeReleaseTemporaryRT(cb, num2);
}
cb.SetRenderTarget(null);
}
private void UpdateGlobalShaderConstants(AmplifyOcclusionBase.TargetDesc target)
{
float num = this.m_camera.fieldOfView * 0.0174532924f;
Vector2 vector = new Vector2(1f / Mathf.Tan(num * 0.5f) * ((float)target.height / (float)target.width), 1f / Mathf.Tan(num * 0.5f));
Vector2 vector2 = new Vector2(1f / vector.x, 1f / vector.y);
float num2;
if (this.m_camera.orthographic)
{
num2 = (float)target.height / this.m_camera.orthographicSize;
}
else
{
num2 = (float)target.height / (Mathf.Tan(num * 0.5f) * 2f);
}
float num3 = Mathf.Clamp(this.Bias, 0f, 1f);
this.FadeStart = Mathf.Max(0f, this.FadeStart);
this.FadeLength = Mathf.Max(0.01f, this.FadeLength);
float y = (!this.FadeEnabled) ? 0f : (1f / this.FadeLength);
Shader.SetGlobalMatrix("_AO_CameraProj", GL.GetGPUProjectionMatrix(Matrix4x4.Ortho(0f, 1f, 0f, 1f, -1f, 100f), false));
Shader.SetGlobalMatrix("_AO_CameraView", this.m_camera.worldToCameraMatrix);
Shader.SetGlobalVector("_AO_UVToView", new Vector4(2f * vector2.x, -2f * vector2.y, -1f * vector2.x, 1f * vector2.y));
Shader.SetGlobalFloat("_AO_HalfProjScale", 0.5f * num2);
Shader.SetGlobalFloat("_AO_Radius", this.Radius);
Shader.SetGlobalFloat("_AO_PowExponent", this.PowerExponent);
Shader.SetGlobalFloat("_AO_Bias", num3);
Shader.SetGlobalFloat("_AO_Multiplier", 1f / (1f - num3));
Shader.SetGlobalFloat("_AO_BlurSharpness", this.BlurSharpness);
Shader.SetGlobalColor("_AO_Levels", new Color(this.Tint.r, this.Tint.g, this.Tint.b, this.Intensity));
Shader.SetGlobalVector("_AO_FadeParams", new Vector2(this.FadeStart, y));
Shader.SetGlobalVector("_AO_FadeValues", new Vector3(this.FadeToIntensity, this.FadeToRadius, this.FadeToPowerExponent));
}
private void CommandBuffer_FillApplyPostEffect(CommandBuffer cb, AmplifyOcclusionBase.TargetDesc target, bool logTarget)
{
cb.SetGlobalTexture("_AO_OcclusionTexture", this.m_occlusionRT);
if (!logTarget)
{
this.SetBlitTarget(cb, BuiltinRenderTextureType.CameraTarget, target.fullWidth, target.fullHeight);
this.PerformBlit(cb, this.m_occlusionMat, 39);
}
else
{
int num = this.SafeAllocateTemporaryRT(cb, "_AO_GBufferEmission", target.fullWidth, target.fullHeight, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Default, FilterMode.Point);
cb.Blit(BuiltinRenderTextureType.GBuffer3, num);
cb.SetGlobalTexture("_AO_GBufferEmission", num);
this.SetBlitTarget(cb, BuiltinRenderTextureType.GBuffer3, target.fullWidth, target.fullHeight);
this.PerformBlit(cb, this.m_occlusionMat, 40);
this.SafeReleaseTemporaryRT(cb, num);
}
cb.SetRenderTarget(null);
}
private void CommandBuffer_FillComputeOcclusion(CommandBuffer cb, AmplifyOcclusionBase.TargetDesc target)
{
this.CheckMaterial();
this.CheckRandomData();
cb.SetGlobalVector("_AO_Buffer_PadScale", new Vector4(target.padRatioWidth, target.padRatioHeight, 1f / target.padRatioWidth, 1f / target.padRatioHeight));
cb.SetGlobalVector("_AO_Buffer_TexelSize", new Vector4(1f / (float)target.width, 1f / (float)target.height, (float)target.width, (float)target.height));
cb.SetGlobalVector("_AO_QuarterBuffer_TexelSize", new Vector4(1f / (float)target.quarterWidth, 1f / (float)target.quarterHeight, (float)target.quarterWidth, (float)target.quarterHeight));
cb.SetGlobalFloat("_AO_MaxRadiusPixels", (float)Mathf.Min(target.width, target.height));
if (this.m_occlusionRT == null || this.m_occlusionRT.width != target.width || this.m_occlusionRT.height != target.height || !this.m_occlusionRT.IsCreated())
{
this.SafeReleaseRT(ref this.m_occlusionRT);
this.m_occlusionRT = this.SafeAllocateRT("_AO_OcclusionTexture", target.width, target.height, this.m_occlusionRTFormat, RenderTextureReadWrite.Linear);
}
int num = -1;
if (this.Downsample)
{
num = this.SafeAllocateTemporaryRT(cb, "_AO_SmallOcclusionTexture", target.width / 2, target.height / 2, this.m_occlusionRTFormat, RenderTextureReadWrite.Linear, FilterMode.Bilinear);
}
if (this.CacheAware && !this.Downsample)
{
int num2 = this.SafeAllocateTemporaryRT(cb, "_AO_OcclusionAtlas", target.width, target.height, this.m_occlusionRTFormat, RenderTextureReadWrite.Linear, FilterMode.Point);
for (int i = 0; i < 16; i++)
{
this.m_depthLayerRT[i] = this.SafeAllocateTemporaryRT(cb, this.m_layerDepthNames[i], target.quarterWidth, target.quarterHeight, this.m_depthRTFormat, RenderTextureReadWrite.Linear, FilterMode.Point);
this.m_normalLayerRT[i] = this.SafeAllocateTemporaryRT(cb, this.m_layerNormalNames[i], target.quarterWidth, target.quarterHeight, this.m_normalRTFormat, RenderTextureReadWrite.Linear, FilterMode.Point);
this.m_occlusionLayerRT[i] = this.SafeAllocateTemporaryRT(cb, this.m_layerOcclusionNames[i], target.quarterWidth, target.quarterHeight, this.m_occlusionRTFormat, RenderTextureReadWrite.Linear, FilterMode.Point);
}
for (int j = 0; j < 16; j += this.m_mrtCount)
{
for (int k = 0; k < this.m_mrtCount; k++)
{
int num3 = k + j;
int num4 = num3 & 3;
int num5 = num3 >> 2;
cb.SetGlobalVector(this.m_layerOffsetNames[k], new Vector2((float)num4 + 0.5f, (float)num5 + 0.5f));
this.m_depthTargets[k] = this.m_depthLayerRT[num3];
this.m_normalTargets[k] = this.m_normalLayerRT[num3];
}
this.SetBlitTarget(cb, this.m_depthTargets, target.quarterWidth, target.quarterHeight);
this.PerformBlit(cb, this.m_occlusionMat, this.m_deinterleaveDepthPass);
this.SetBlitTarget(cb, this.m_normalTargets, target.quarterWidth, target.quarterHeight);
this.PerformBlit(cb, this.m_occlusionMat, (int)(this.m_deinterleaveNormalPass + this.PerPixelNormals));
}
for (int l = 0; l < 16; l++)
{
cb.SetGlobalVector("_AO_LayerOffset", new Vector2((float)(l & 3) + 0.5f, (float)(l >> 2) + 0.5f));
cb.SetGlobalVector("_AO_LayerRandom", this.m_randomData[l]);
cb.SetGlobalTexture("_AO_NormalTexture", this.m_normalLayerRT[l]);
cb.SetGlobalTexture("_AO_DepthTexture", this.m_depthLayerRT[l]);
this.SetBlitTarget(cb, this.m_occlusionLayerRT[l], target.quarterWidth, target.quarterHeight);
this.PerformBlit(cb, this.m_occlusionMat, (int)(15 + this.SampleCount));
}
this.SetBlitTarget(cb, num2, target.width, target.height);
for (int m = 0; m < 16; m++)
{
int x = (m & 3) * target.quarterWidth;
int y = (m >> 2) * target.quarterHeight;
this.PerformBlit(cb, this.m_occlusionLayerRT[m], target.quarterWidth, target.quarterHeight, this.m_copyMat, 0, x, y);
}
cb.SetGlobalTexture("_AO_OcclusionAtlas", num2);
this.SetBlitTarget(cb, this.m_occlusionRT, target.width, target.height);
this.PerformBlit(cb, this.m_occlusionMat, 19);
for (int n = 0; n < 16; n++)
{
this.SafeReleaseTemporaryRT(cb, this.m_occlusionLayerRT[n]);
this.SafeReleaseTemporaryRT(cb, this.m_normalLayerRT[n]);
this.SafeReleaseTemporaryRT(cb, this.m_depthLayerRT[n]);
}
this.SafeReleaseTemporaryRT(cb, num2);
}
else
{
int pass = (int)(20 + this.SampleCount * (AmplifyOcclusionBase.SampleCountLevel) 4 + (int)this.PerPixelNormals);
if (this.Downsample)
{
cb.Blit(null, new RenderTargetIdentifier(num), this.m_occlusionMat, pass);
this.SetBlitTarget(cb, this.m_occlusionRT, target.width, target.height);
this.PerformBlit(cb, num, target.width / 2, target.height / 2, this.m_occlusionMat, 41);
}
else
{
cb.Blit(null, this.m_occlusionRT, this.m_occlusionMat, pass);
}
}
if (this.BlurEnabled)
{
int num6 = this.SafeAllocateTemporaryRT(cb, "_AO_TEMP", target.width, target.height, this.m_occlusionRTFormat, RenderTextureReadWrite.Linear, FilterMode.Point);
for (int num7 = 0; num7 < this.BlurPasses; num7++)
{
this.SetBlitTarget(cb, num6, target.width, target.height);
this.PerformBlit(cb, this.m_occlusionRT, target.width, target.height, this.m_blurMat, (this.BlurRadius - 1) * 2);
this.SetBlitTarget(cb, this.m_occlusionRT, target.width, target.height);
this.PerformBlit(cb, num6, target.width, target.height, this.m_blurMat, 1 + (this.BlurRadius - 1) * 2);
}
this.SafeReleaseTemporaryRT(cb, num6);
}
if (this.Downsample && num >= 0)
{
this.SafeReleaseTemporaryRT(cb, num);
}
cb.SetRenderTarget(null);
}