mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-12-02 08:53:29 +00:00
35 lines
1 KiB
GLSL
35 lines
1 KiB
GLSL
|
|
in vec2 TexCoord;
|
|
out vec4 FragColor;
|
|
|
|
#if defined(MULTISAMPLE)
|
|
uniform sampler2DMS DepthTexture;
|
|
uniform int SampleCount;
|
|
#else
|
|
uniform sampler2D DepthTexture;
|
|
#endif
|
|
uniform float LinearizeDepthA;
|
|
uniform float LinearizeDepthB;
|
|
uniform float InverseDepthRangeA;
|
|
uniform float InverseDepthRangeB;
|
|
|
|
void main()
|
|
{
|
|
#if defined(MULTISAMPLE)
|
|
ivec2 texSize = textureSize(DepthTexture);
|
|
ivec2 ipos = ivec2(TexCoord * vec2(texSize));
|
|
float depth = 0.0;
|
|
for (int i = 0; i < SampleCount; i++)
|
|
depth += texelFetch(DepthTexture, ipos, i).x;
|
|
depth /= float(SampleCount);
|
|
#else
|
|
/*ivec2 texSize = textureSize(DepthTexture, 0);
|
|
ivec2 ipos = ivec2(TexCoord * vec2(texSize));
|
|
if (ipos.x < 0) ipos.x += texSize.x;
|
|
if (ipos.y < 0) ipos.y += texSize.y;
|
|
float depth = texelFetch(DepthTexture, ipos, 0).x;*/
|
|
float depth = texture(DepthTexture, TexCoord).x;
|
|
#endif
|
|
float normalizedDepth = clamp(InverseDepthRangeA * depth + InverseDepthRangeB, 0.0, 1.0);
|
|
FragColor = vec4(1.0 / (normalizedDepth * LinearizeDepthA + LinearizeDepthB), 0.0, 0.0, 1.0);
|
|
}
|