UnrealEngineUWP/Engine/Shaders/VertexFactoryCommon.usf

// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.

#include "Common.usf"

float3 TransformLocalToWorld(float3 LocalPosition)
{
	//expand the matrix multiply to avoid a code-gen bug on PS4.
	//float3 RotatedPosition = mul(LocalPosition.xyz, (float3x3)Primitive.LocalToWorld);
	float3 RotatedPosition = Primitive.LocalToWorld[0].xyz * LocalPosition.xxx + Primitive.LocalToWorld[1].xyz * LocalPosition.yyy + Primitive.LocalToWorld[2].xyz * LocalPosition.zzz;
	return RotatedPosition + Primitive.LocalToWorld[3].xyz;
}

float4 TransformLocalToTranslatedWorld(float3 LocalPosition)
{
	float3 RotatedPosition = Primitive.LocalToWorld[0].xyz * LocalPosition.xxx + Primitive.LocalToWorld[1].xyz * LocalPosition.yyy + Primitive.LocalToWorld[2].xyz * LocalPosition.zzz;
	return float4(RotatedPosition + (Primitive.LocalToWorld[3].xyz + View.PreViewTranslation.xyz),1);
}