Danbias/Code/OysterGraphics/Shader/HLSL/Deffered Shaders/Render/PosManipulation.hlsli

21 lines
425 B
HLSL

#include "Defines.hlsli"
//assumes ProperfloatTexCoords
float3 ToVpos(float2 texCoord)
{
//Get proper UV
float2 UV = float2(texCoord) / float2(Pixels);
float4 ViewPos;
// Get the depth value for this pixel
ViewPos.z= DepthTexture[texCoord].x;
//Get X/w
ViewPos.x = UV.x * 2 - 1;
//Get Y/w
ViewPos.y = 1 - 2 * UV.y;
ViewPos.w = 1;
//Un project
ViewPos = mul(ViewPos, InvProj);
return ViewPos.xyz / ViewPos.w;
}