public override VFXExpressionMapper GetExpressionMapper(VFXDeviceTarget target)
{
switch (target)
{
case VFXDeviceTarget.GPU:
{
var mapper = new VFXExpressionMapper();
for (int i = 2; i < GetNbInputSlots(); ++i)
{
VFXExpression exp = GetInputSlot(i).GetExpression();
VFXProperty prop = GetInputSlot(i).property;
// As there's not shader generation here, we need expressions that can be evaluated on CPU
if (exp.IsAny(VFXExpression.Flags.NotCompilableOnCPU))
{
throw new InvalidOperationException(string.Format("Expression for slot {0} must be evaluable on CPU: {1}", prop.name, exp));
}
// needs to convert to srgb as color are linear in vfx graph
// This should not be performed for colors with the attribute [HDR] and be performed for vector4 with the attribute [Gamma]
// But property attributes cannot seem to be accessible from C# :(
if (prop.type == typeof(Color))
{
exp = VFXOperatorUtility.LinearToGamma(exp);
}
mapper.AddExpression(exp, prop.name, -1);
}
return(mapper);
}
case VFXDeviceTarget.CPU:
{
var mapper = new VFXExpressionMapper();
mapper.AddExpression(GetInputSlot(0).GetExpression(), "mesh", -1);
mapper.AddExpression(GetInputSlot(1).GetExpression(), "transform", -1);
mapper.AddExpression(GetInputSlot(2).GetExpression(), "subMeshMask", -1);
return(mapper);
}
default:
return(null);
}
}
public override VFXExpressionMapper GetExpressionMapper(VFXDeviceTarget target)
{
var meshData = (VFXDataMesh)GetData();
switch (target)
{
case VFXDeviceTarget.GPU:
{
var mapper = new VFXExpressionMapper();
for (int i = 2; i < GetNbInputSlots(); ++i)
{
VFXExpression exp = GetInputSlot(i).GetExpression();
VFXProperty prop = GetInputSlot(i).property;
// As there's not shader generation here, we need expressions that can be evaluated on CPU
if (exp.IsAny(VFXExpression.Flags.NotCompilableOnCPU))
{
throw new InvalidOperationException(string.Format("Expression for slot {0} must be evaluable on CPU: {1}", prop.name, exp));
}
// needs to convert to srgb as color are linear in vfx graph
// This should not be performed for colors with the attribute [HDR] and be performed for vector4 with the attribute [Gamma]
// But property attributes cannot seem to be accessible from C# :(
if (prop.type == typeof(Color))
{
exp = VFXOperatorUtility.LinearToGamma(exp);
}
mapper.AddExpression(exp, prop.name, -1);
}
return(mapper);
}
case VFXDeviceTarget.CPU:
{
var mapper = new VFXExpressionMapper();
mapper.AddExpression(GetInputSlot(0).GetExpression(), "mesh", -1);
mapper.AddExpression(GetInputSlot(1).GetExpression(), "transform", -1);
mapper.AddExpression(GetInputSlot(2).GetExpression(), "subMeshMask", -1);
// TODO Remove this once material are serialized
// Add material properties
if (shader != null)
{
var mat = meshData.GetOrCreateMaterial();
for (int i = 0; i < ShaderUtil.GetPropertyCount(shader); ++i)
{
if (ShaderUtil.IsShaderPropertyHidden(shader, i))
{
var name = ShaderUtil.GetPropertyName(shader, i);
var nameId = Shader.PropertyToID(name);
if (!mat.HasProperty(nameId))
{
continue;
}
VFXExpression expr = null;
switch (ShaderUtil.GetPropertyType(shader, i))
{
case ShaderUtil.ShaderPropertyType.Float:
expr = VFXValue.Constant <float>(mat.GetFloat(nameId));
break;
default:
break;
}
if (expr != null)
{
mapper.AddExpression(expr, name, -1);
}
}
}
}
return(mapper);
}
default:
return(null);
}
}
