public DensityVolumeData GetData()
{
DensityVolumeData data = new DensityVolumeData();
data.extinction = VolumeRenderingUtils.ExtinctionFromMeanFreePath(meanFreePath);
data.scattering = VolumeRenderingUtils.ScatteringFromExtinctionAndAlbedo(data.extinction, (Vector3)(Vector4)albedo);
return(data);
}
public override void PushShaderParameters(CommandBuffer cmd, FrameSettings frameSettings)
{
DensityVolumeParameters param = new DensityVolumeParameters(albedo, meanFreePath, anisotropy);
DensityVolumeData data = param.GetData();
cmd.SetGlobalInt(HDShaderIDs._AtmosphericScatteringType, (int)FogType.Volumetric);
cmd.SetGlobalVector(HDShaderIDs._GlobalScattering, data.scattering);
cmd.SetGlobalFloat(HDShaderIDs._GlobalExtinction, data.extinction);
cmd.SetGlobalFloat(HDShaderIDs._GlobalAnisotropy, anisotropy);
}
public DensityVolumeData GetData()
{
DensityVolumeData data = new DensityVolumeData();
data.extinction = VolumeRenderingUtils.ExtinctionFromMeanFreePath(meanFreePath);
data.scattering = VolumeRenderingUtils.ScatteringFromExtinctionAndAlbedo(data.extinction, (Vector3)(Vector4)albedo);
data.textureIndex = textureIndex;
data.textureScroll = volumeScrollingAmount;
data.textureTiling = textureTiling;
return(data);
}
public static void PushNeutralShaderParameters(CommandBuffer cmd)
{
cmd.SetGlobalInt(HDShaderIDs._AtmosphericScatteringType, (int)FogType.None);
// In case volumetric lighting is enabled, we need to make sure that all rendering passes
// (not just the atmospheric scattering one) receive neutral parameters.
if (ShaderConfig.s_VolumetricLightingPreset != 0)
{
var data = DensityVolumeData.GetNeutralValues();
cmd.SetGlobalVector(HDShaderIDs._GlobalScattering, data.scattering);
cmd.SetGlobalFloat(HDShaderIDs._GlobalExtinction, data.extinction);
cmd.SetGlobalFloat(HDShaderIDs._GlobalAnisotropy, 0.0f);
}
}
public override void PushShaderParameters(CommandBuffer cmd, FrameSettings frameSettings)
{
DensityVolumeParameters param;
param.albedo = albedo;
param.meanFreePath = meanFreePath;
param.asymmetry = asymmetry;
DensityVolumeData data = param.GetData();
cmd.SetGlobalInt(HDShaderIDs._AtmosphericScatteringType, (int)FogType.Volumetric);
cmd.SetGlobalVector(HDShaderIDs._GlobalScattering, data.scattering);
cmd.SetGlobalFloat(HDShaderIDs._GlobalExtinction, data.extinction);
cmd.SetGlobalFloat(HDShaderIDs._GlobalAsymmetry, asymmetry);
}