public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
{
CommandBuffer cmd = CommandBufferPool.Get(k_RenderGrabPassTag);
using (new ProfilingScope(cmd, m_Thickness_Profile))
{
// TODO: DrawRenderer does not seem to work in URP, so switch to DrawRenderers().
FluidRenderingUtils.Foam(cmd, renderTargets, renderers);
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
public override void UpdateFluidRenderingCommandBuffer()
{
renderFluid.Clear();
if (particleRenderers == null || fluid_Material == null || color_Material == null)
{
return;
}
fluid_Material.SetInt("_BlendSrc", (int)settings.blendSource);
fluid_Material.SetInt("_BlendDst", (int)settings.blendDestination);
fluid_Material.SetFloat("_ThicknessCutoff", settings.thicknessCutoff);
color_Material.SetInt("_BlendSrc", (int)settings.particleBlendSource);
color_Material.SetInt("_BlendDst", (int)settings.particleBlendDestination);
color_Material.SetInt("_ZWrite", settings.particleZWrite?1:0);
// generate color / thickness buffer:
renderFluid.GetTemporaryRT(renderTargets.thickness1, -settings.thicknessDownsample, -settings.thicknessDownsample, 16, FilterMode.Bilinear, RenderTextureFormat.ARGBHalf);
renderFluid.GetTemporaryRT(renderTargets.thickness2, -settings.thicknessDownsample, -settings.thicknessDownsample, 0, FilterMode.Bilinear, RenderTextureFormat.ARGBHalf);
renderFluid.SetRenderTarget(renderTargets.thickness1);
renderFluid.ClearRenderTarget(true, true, FluidRenderingUtils.thicknessBufferClear);
FluidRenderingUtils.VolumeReconstruction(renderFluid,
renderTargets,
thickness_Material,
color_Material,
particleRenderers);
renderFluid.Blit(renderTargets.thickness1, renderTargets.thickness2, thickness_Material, 1);
renderFluid.Blit(renderTargets.thickness2, renderTargets.thickness1, thickness_Material, 2);
// surface reconstruction and dependant effects (lighting/reflection/refraction/foam)
if (settings.generateSurface)
{
// normals/depth buffers:
renderFluid.GetTemporaryRT(renderTargets.depth, -settings.surfaceDownsample, -settings.surfaceDownsample, 24, FilterMode.Point, RenderTextureFormat.Depth);
renderFluid.GetTemporaryRT(renderTargets.smoothDepth, -settings.surfaceDownsample, -settings.surfaceDownsample, 0, FilterMode.Bilinear, RenderTextureFormat.RFloat);
renderFluid.GetTemporaryRT(renderTargets.normals, -settings.surfaceDownsample, -settings.surfaceDownsample, 0, FilterMode.Bilinear, RenderTextureFormat.ARGBHalf);
renderFluid.SetRenderTarget(renderTargets.depth); // fluid depth
renderFluid.ClearRenderTarget(true, true, Color.clear); //clear
FluidRenderingUtils.SurfaceReconstruction(renderFluid,
renderTargets,
depth_BlurMaterial,
normal_ReconstructMaterial,
particleRenderers);
// blur fluid surface / reconstruct normals from smoothed depth:
renderFluid.Blit(renderTargets.depth, renderTargets.smoothDepth, depth_BlurMaterial);
renderFluid.Blit(renderTargets.smoothDepth, renderTargets.normals, normal_ReconstructMaterial);
fluid_Material.SetInt("_ZTest", (int)CompareFunction.LessEqual);
if (settings.lighting)
{
fluid_Material.EnableKeyword("FLUID_LIGHTING");
fluid_Material.SetFloat("_Smoothness", settings.smoothness);
fluid_Material.SetFloat("_AmbientMultiplier", settings.ambientMultiplier);
}
else
{
fluid_Material.DisableKeyword("FLUID_LIGHTING");
}
if (settings.generateReflection)
{
fluid_Material.EnableKeyword("FLUID_REFLECTION");
fluid_Material.SetFloat("_ReflectionCoeff", settings.reflection);
fluid_Material.SetFloat("_Metalness", settings.metalness);
}
else
{
fluid_Material.DisableKeyword("FLUID_REFLECTION");
}
if (settings.generateRefraction)
{
renderFluid.GetTemporaryRT(renderTargets.refraction, -settings.refractionDownsample, -settings.refractionDownsample, 0, FilterMode.Bilinear);
FluidRenderingUtils.Refraction(renderFluid, BuiltinRenderTextureType.CameraTarget, renderTargets);
fluid_Material.EnableKeyword("FLUID_REFRACTION");
fluid_Material.SetFloat("_Transparency", settings.transparency);
fluid_Material.SetFloat("_AbsorptionCoeff", settings.absorption);
fluid_Material.SetFloat("_RefractionCoeff", settings.refraction);
}
else
{
fluid_Material.DisableKeyword("FLUID_REFRACTION");
}
}
else
{
// no depth buffer, so always pass ztest.
fluid_Material.SetInt("_ZTest", (int)CompareFunction.Always);
fluid_Material.DisableKeyword("FLUID_LIGHTING");
fluid_Material.DisableKeyword("FLUID_REFLECTION");
fluid_Material.DisableKeyword("FLUID_REFRACTION");
}
if (settings.generateFoam)
{
renderFluid.GetTemporaryRT(renderTargets.foam, -settings.foamDownsample, -settings.foamDownsample, 0, FilterMode.Bilinear);
renderFluid.SetRenderTarget(renderTargets.foam);
renderFluid.ClearRenderTarget(true, true, Color.clear);
FluidRenderingUtils.Foam(renderFluid, renderTargets, particleRenderers);
fluid_Material.EnableKeyword("FLUID_FOAM");
}
else
{
fluid_Material.DisableKeyword("FLUID_FOAM");
}
// final pass (shading):
renderFluid.Blit(renderTargets.thickness1, BuiltinRenderTextureType.CameraTarget, fluid_Material);
}