diff options
Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/effect_minmaxz_frag.glsl')
| -rw-r--r-- | source/blender/draw/engines/eevee/shaders/effect_minmaxz_frag.glsl | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/effect_minmaxz_frag.glsl b/source/blender/draw/engines/eevee/shaders/effect_minmaxz_frag.glsl index ccb65d2e5a6..8ef39a55921 100644 --- a/source/blender/draw/engines/eevee/shaders/effect_minmaxz_frag.glsl +++ b/source/blender/draw/engines/eevee/shaders/effect_minmaxz_frag.glsl @@ -14,6 +14,10 @@ uniform int depthLayer; uniform sampler2D depthBuffer; #endif +#ifndef COPY_DEPTH +uniform vec2 texelSize; +#endif + #ifdef LAYERED # define sampleLowerMip(t) texture(depthBuffer, vec3(t, depthLayer)).r # define gatherLowerMip(t) textureGather(depthBuffer, vec3(t, depthLayer)) @@ -41,23 +45,24 @@ out vec4 fragColor; void main() { vec2 texel = gl_FragCoord.xy; - vec2 texel_size = 1.0 / vec2(textureSize(depthBuffer, 0).xy); #ifdef COPY_DEPTH - vec2 uv = texel * texel_size; + vec2 uv = texel / vec2(textureSize(depthBuffer, 0).xy); float val = sampleLowerMip(uv); #else - vec2 uv = texel * 2.0 * texel_size; + /* NOTE(@fclem): textureSize() does not work the same on all implementations + * when changing the min and max texture levels. Use uniform instead (see T87801). */ + vec2 uv = texel * 2.0 * texelSize; vec4 samp; # ifdef GPU_ARB_texture_gather samp = gatherLowerMip(uv); # else - samp.x = sampleLowerMip(uv + vec2(-0.5, -0.5) * texel_size); - samp.y = sampleLowerMip(uv + vec2(-0.5, 0.5) * texel_size); - samp.z = sampleLowerMip(uv + vec2(0.5, -0.5) * texel_size); - samp.w = sampleLowerMip(uv + vec2(0.5, 0.5) * texel_size); + samp.x = sampleLowerMip(uv + vec2(-0.5, -0.5) * texelSize); + samp.y = sampleLowerMip(uv + vec2(-0.5, 0.5) * texelSize); + samp.z = sampleLowerMip(uv + vec2(0.5, -0.5) * texelSize); + samp.w = sampleLowerMip(uv + vec2(0.5, 0.5) * texelSize); # endif float val = minmax4(samp.x, samp.y, samp.z, samp.w); |