urho3d/SourceAssets/GLSLShaders/Samplers.frag

uniform sampler2D sDiffMap;
uniform samplerCube sDiffCubeMap;
uniform sampler2D sNormalMap;
uniform sampler2D sSpecMap;
uniform sampler2D sEmissiveMap;
uniform sampler2D sDetailMap;
uniform sampler2D sEnvMap;
uniform samplerCube sEnvCubeMap;
uniform sampler2DShadow sShadowMap;
uniform sampler2D sLightRampMap;
uniform sampler2D sLightSpotMap;
uniform samplerCube sLightCubeMap;
uniform samplerCube sFaceSelectCubeMap;
uniform samplerCube sIndirectionCubeMap;
uniform sampler2D sAlbedoBuffer;
uniform sampler2D sNormalBuffer;
uniform sampler2D sDepthBuffer;
uniform sampler2D sLightBuffer;

vec3 DecodeNormal(vec4 normalInput)
{
    vec3 normal;
    normal.xy = normalInput.ag * 2.0 - 1.0;
    normal.z = sqrt(max(1.0 - dot(normal.xy, normal.xy), 0.0));
    return normal;
}

vec3 EncodeDepth(float depth)
{
    vec3 ret;
    depth *= 255.0;
    ret.x = floor(depth);
    depth = (depth - ret.x) * 255.0;
    ret.y = floor(depth);
    ret.z = (depth - ret.y);
    ret.xy *= 1.0 / 255.0;
    return ret;
}

float DecodeDepth(vec3 depth)
{
    const vec3 dotValues = vec3(1.0, 1.0 / 255.0, 1.0 / (255.0 * 255.0));
    return dot(depth, dotValues);
}

float ReconstructDepth(float hwDepth)
{
    return cDepthReconstruct.y / (hwDepth - cDepthReconstruct.x);
}