private static bool ShouldSpliceField(System.Type parentType, FieldInfo field, IActiveFields activeFields, out bool isOptional)
{
bool fieldActive = true;
isOptional = field.IsDefined(typeof(Optional), false);
if (isOptional)
{
string fullName = parentType.Name + "." + field.Name;
if (!activeFields.Contains(fullName))
{
// not active, skip the optional field
fieldActive = false;
}
}
return(fieldActive);
}
static void AddActiveFieldsFromGraphRequirements(IActiveFields activeFields, ShaderGraphRequirements requirements, string structName)
{
if (requirements.requiresScreenPosition)
{
activeFields.Add($"{structName}.ScreenPosition");
}
if (requirements.requiresVertexColor)
{
activeFields.Add($"{structName}.VertexColor");
}
if (requirements.requiresFaceSign)
{
activeFields.Add($"{structName}.FaceSign");
}
if (requirements.requiresNormal != 0)
{
if ((requirements.requiresNormal & NeededCoordinateSpace.Object) > 0)
{
activeFields.Add($"{structName}.ObjectSpaceNormal");
}
if ((requirements.requiresNormal & NeededCoordinateSpace.View) > 0)
{
activeFields.Add($"{structName}.ViewSpaceNormal");
}
if ((requirements.requiresNormal & NeededCoordinateSpace.World) > 0)
{
activeFields.Add($"{structName}.WorldSpaceNormal");
}
if ((requirements.requiresNormal & NeededCoordinateSpace.Tangent) > 0)
{
activeFields.Add($"{structName}.TangentSpaceNormal");
}
}
if (requirements.requiresTangent != 0)
{
if ((requirements.requiresTangent & NeededCoordinateSpace.Object) > 0)
{
activeFields.Add($"{structName}.ObjectSpaceTangent");
}
if ((requirements.requiresTangent & NeededCoordinateSpace.View) > 0)
{
activeFields.Add($"{structName}.ViewSpaceTangent");
}
if ((requirements.requiresTangent & NeededCoordinateSpace.World) > 0)
{
activeFields.Add($"{structName}.WorldSpaceTangent");
}
if ((requirements.requiresTangent & NeededCoordinateSpace.Tangent) > 0)
{
activeFields.Add($"{structName}.TangentSpaceTangent");
}
}
if (requirements.requiresBitangent != 0)
{
if ((requirements.requiresBitangent & NeededCoordinateSpace.Object) > 0)
{
activeFields.Add($"{structName}.ObjectSpaceBiTangent");
}
if ((requirements.requiresBitangent & NeededCoordinateSpace.View) > 0)
{
activeFields.Add($"{structName}.ViewSpaceBiTangent");
}
if ((requirements.requiresBitangent & NeededCoordinateSpace.World) > 0)
{
activeFields.Add($"{structName}.WorldSpaceBiTangent");
}
if ((requirements.requiresBitangent & NeededCoordinateSpace.Tangent) > 0)
{
activeFields.Add($"{structName}.TangentSpaceBiTangent");
}
}
if (requirements.requiresViewDir != 0)
{
if ((requirements.requiresViewDir & NeededCoordinateSpace.Object) > 0)
{
activeFields.Add($"{structName}.ObjectSpaceViewDirection");
}
if ((requirements.requiresViewDir & NeededCoordinateSpace.View) > 0)
{
activeFields.Add($"{structName}.ViewSpaceViewDirection");
}
if ((requirements.requiresViewDir & NeededCoordinateSpace.World) > 0)
{
activeFields.Add($"{structName}.WorldSpaceViewDirection");
}
if ((requirements.requiresViewDir & NeededCoordinateSpace.Tangent) > 0)
{
activeFields.Add($"{structName}.TangentSpaceViewDirection");
}
}
if (requirements.requiresPosition != 0)
{
if ((requirements.requiresPosition & NeededCoordinateSpace.Object) > 0)
{
activeFields.Add($"{structName}.ObjectSpacePosition");
}
if ((requirements.requiresPosition & NeededCoordinateSpace.View) > 0)
{
activeFields.Add($"{structName}.ViewSpacePosition");
}
if ((requirements.requiresPosition & NeededCoordinateSpace.World) > 0)
{
activeFields.Add($"{structName}.WorldSpacePosition");
}
if ((requirements.requiresPosition & NeededCoordinateSpace.Tangent) > 0)
{
activeFields.Add($"{structName}.TangentSpacePosition");
}
if ((requirements.requiresPosition & NeededCoordinateSpace.AbsoluteWorld) > 0)
{
activeFields.Add($"{structName}.AbsoluteWorldSpacePosition");
}
}
foreach (var channel in requirements.requiresMeshUVs.Distinct())
{
activeFields.Add($"{structName}.{channel.GetUVName()}");
}
if (requirements.requiresTime)
{
activeFields.Add($"{structName}.TimeParameters");
}
if (requirements.requiresVertexSkinning)
{
activeFields.Add($"{structName}.BoneWeights");
activeFields.Add($"{structName}.BoneIndices");
}
}
