59 lines
1.4 KiB
GLSL
59 lines
1.4 KiB
GLSL
#ifdef COMPILEVS
|
|
mat3 GetCameraRot()
|
|
{
|
|
return mat3(cViewInv[0][0], cViewInv[0][1], cViewInv[0][2],
|
|
cViewInv[1][0], cViewInv[1][1], cViewInv[1][2],
|
|
cViewInv[2][0], cViewInv[2][1], cViewInv[2][2]);
|
|
}
|
|
|
|
vec4 GetScreenPos(vec4 clipPos)
|
|
{
|
|
return vec4(
|
|
clipPos.x * cGBufferOffsets.z + cGBufferOffsets.x * clipPos.w,
|
|
clipPos.y * cGBufferOffsets.w + cGBufferOffsets.y * clipPos.w,
|
|
0.0,
|
|
clipPos.w);
|
|
}
|
|
|
|
vec2 GetScreenPosPreDiv(vec4 clipPos)
|
|
{
|
|
return vec2(
|
|
clipPos.x / clipPos.w * cGBufferOffsets.z + cGBufferOffsets.x,
|
|
clipPos.y / clipPos.w * cGBufferOffsets.w + cGBufferOffsets.y);
|
|
}
|
|
|
|
vec2 GetQuadTexCoord(vec4 clipPos)
|
|
{
|
|
return vec2(
|
|
clipPos.x / clipPos.w * 0.5 + 0.5,
|
|
clipPos.y / clipPos.w * 0.5 + 0.5);
|
|
}
|
|
|
|
vec2 GetQuadTexCoordNoFlip(vec3 worldPos)
|
|
{
|
|
return vec2(
|
|
worldPos.x * 0.5 + 0.5,
|
|
-worldPos.y * 0.5 + 0.5);
|
|
}
|
|
|
|
vec3 GetFarRay(vec4 clipPos)
|
|
{
|
|
vec3 viewRay = vec3(
|
|
clipPos.x / clipPos.w * cFrustumSize.x,
|
|
clipPos.y / clipPos.w * cFrustumSize.y,
|
|
cFrustumSize.z);
|
|
|
|
return viewRay * GetCameraRot();
|
|
}
|
|
|
|
vec3 GetNearRay(vec4 clipPos)
|
|
{
|
|
vec3 viewRay = vec3(
|
|
clipPos.x / clipPos.w * cFrustumSize.x,
|
|
clipPos.y / clipPos.w * cFrustumSize.y,
|
|
0.0);
|
|
|
|
return (viewRay * GetCameraRot()) * cDepthMode.x;
|
|
}
|
|
#endif
|