public override VFXExpressionMapper GetExpressionMapper(VFXDeviceTarget target)
{
if (!m_encapsulatedOutput)
{
throw new NullReferenceException("Unexpected call of GetExpressionMapper with a null m_encapsulatedOutput");
}
var expressionMapper = m_encapsulatedOutput.GetExpressionMapper(target);
if (target == VFXDeviceTarget.GPU)
{
var currentFrameIndex = expressionMapper.FromNameAndId("currentFrameIndex", -1);
if (currentFrameIndex == null)
{
Debug.LogError("CurrentFrameIndex isn't reachable in encapsulatedOutput for motionVector");
}
//Since it's a compute shader without renderer associated, these entries aren't automatically sent
expressionMapper.AddExpression(VFXBuiltInExpression.LocalToWorld, "unity_ObjectToWorld", -1);
expressionMapper.AddExpression(VFXBuiltInExpression.WorldToLocal, "unity_WorldToObject", -1);
}
return(expressionMapper);
}