diff options
Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/effect_downsample_frag.glsl')
-rw-r--r-- | source/blender/draw/engines/eevee/shaders/effect_downsample_frag.glsl | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/effect_downsample_frag.glsl b/source/blender/draw/engines/eevee/shaders/effect_downsample_frag.glsl new file mode 100644 index 00000000000..1e57aec5ea2 --- /dev/null +++ b/source/blender/draw/engines/eevee/shaders/effect_downsample_frag.glsl @@ -0,0 +1,15 @@ +/** + * Simple downsample shader. Takes the average of the 4 texels of lower mip. + **/ + +uniform sampler2D source; + +out vec4 FragColor; + +void main() +{ + /* Reconstructing Target uvs like this avoid missing pixels if NPO2 */ + vec2 uvs = gl_FragCoord.xy * 2.0 / vec2(textureSize(source, 0)); + + FragColor = textureLod(source, uvs, 0.0); +}
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