minecraft-assets/assets/minecraft/shaders/program/downscale.fsh

18 lines
504 B
GLSL

#version 120
uniform sampler2D DiffuseSampler;
varying vec2 texCoord;
varying vec2 oneTexel;
uniform vec2 InSize;
void main() {
vec3 Texel0 = texture2D(DiffuseSampler, texCoord).rgb;
vec3 Texel1 = texture2D(DiffuseSampler, texCoord + vec2(oneTexel.x, 0.0)).rgb;
vec3 Texel2 = texture2D(DiffuseSampler, texCoord + vec2(0.0, oneTexel.y)).rgb;
vec3 Texel3 = texture2D(DiffuseSampler, texCoord + oneTexel).rgb;
gl_FragColor = vec4((Texel0 + Texel1 + Texel2 + Texel3) * 0.25, 1.0);
}