Create/Update assets for version 3D Shareware v1.34

assets/minecraft/shaders/program/bits.fsh

@@ -0,0 +1,22 @@
+#version 120
+
+uniform sampler2D DiffuseSampler;
+
+varying vec2 texCoord;
+varying vec2 oneTexel;
+
+uniform vec2 InSize;
+
+uniform float ColorResolution = 8.0;
+uniform float Saturation = 1.2;
+
+void main() {
+    vec2 scaleFactors = InSize / 2;
+    vec2 truncPos = floor(texCoord * scaleFactors) / scaleFactors;
+    vec4 baseTexel = texture2D(DiffuseSampler, truncPos);
+    vec3 truncTexel = floor(baseTexel.rgb * ColorResolution) / ColorResolution;
+
+    float luma = dot(truncTexel, vec3(0.3, 0.59, 0.11));
+    vec3 chroma = (truncTexel - luma) * Saturation;
+    gl_FragColor = vec4(luma + chroma, 1.0);
+}