// This is shared between SSGI and RTGI
IndirectDiffuseMode GetIndirectDiffuseMode(HDCamera hdCamera)
{
IndirectDiffuseMode mode = IndirectDiffuseMode.Off;
if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.SSGI))
{
var settings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
if (settings.enable.value)
{
// RTGI is only valid if raytracing is enabled
bool raytracing = hdCamera.frameSettings.IsEnabled(FrameSettingsField.RayTracing) && settings.rayTracing.value;
mode = raytracing ? IndirectDiffuseMode.Raytrace : IndirectDiffuseMode.ScreenSpace;
}
}
return(mode);
}
// This is shared between SSGI and RTGI
IndirectDiffuseMode GetIndirectDiffuseMode(HDCamera hdCamera)
{
IndirectDiffuseMode mode = IndirectDiffuseMode.Off;
if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.SSGI))
{
var settings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
if (settings.enable.value)
{
bool allowSsgi = hdCamera.colorPyramidHistoryIsValid && !hdCamera.isFirstFrame;
// RTGI is only valid if raytracing is enabled
bool raytracing = hdCamera.frameSettings.IsEnabled(FrameSettingsField.RayTracing) && settings.tracing.value != RayCastingMode.RayMarching;
mode = raytracing ? IndirectDiffuseMode.Raytrace : (allowSsgi ? IndirectDiffuseMode.ScreenSpace : IndirectDiffuseMode.Off);
}
}
return(mode);
}
// This is shared between SSGI and RTGI
IndirectDiffuseMode GetIndirectDiffuseMode(HDCamera hdCamera)
{
IndirectDiffuseMode mode = IndirectDiffuseMode.Off;
if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.SSGI))
{
var settings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
if (settings.enable.value)
{
bool allowSsgi = hdCamera.colorPyramidHistoryIsValid && !hdCamera.isFirstFrame;
// We can use the ray tracing version of the effect if:
// - It is enabled in the frame settings
// - It is enabled in the volume
// - The RTAS has been build validated
// - The RTLightCluster has been validated
bool raytracing = hdCamera.frameSettings.IsEnabled(FrameSettingsField.RayTracing) && settings.tracing.value != RayCastingMode.RayMarching && GetRayTracingState() && GetRayTracingClusterState();
mode = raytracing ? IndirectDiffuseMode.Raytrace : (allowSsgi ? IndirectDiffuseMode.ScreenSpace : IndirectDiffuseMode.Off);
}
}
return(mode);
}
