Create/Update assets for version 22w46a

assets/minecraft/shaders/include/fog.glsl

@@ -0,0 +1,30 @@
+#version 150
+
+vec4 linear_fog(vec4 inColor, float vertexDistance, float fogStart, float fogEnd, vec4 fogColor) {
+    if (vertexDistance <= fogStart) {
+        return inColor;
+    }
+
+    float fogValue = vertexDistance < fogEnd ? smoothstep(fogStart, fogEnd, vertexDistance) : 1.0;
+    return vec4(mix(inColor.rgb, fogColor.rgb, fogValue * fogColor.a), inColor.a);
+}
+
+float linear_fog_fade(float vertexDistance, float fogStart, float fogEnd) {
+    if (vertexDistance <= fogStart) {
+        return 1.0;
+    } else if (vertexDistance >= fogEnd) {
+        return 0.0;
+    }
+
+    return smoothstep(fogEnd, fogStart, vertexDistance);
+}
+
+float fog_distance(mat4 modelViewMat, vec3 pos, int shape) {
+    if (shape == 0) {
+        return length((modelViewMat * vec4(pos, 1.0)).xyz);
+    } else {
+        float distXZ = length((modelViewMat * vec4(pos.x, 0.0, pos.z, 1.0)).xyz);
+        float distY = length((modelViewMat * vec4(0.0, pos.y, 0.0, 1.0)).xyz);
+        return max(distXZ, distY);
+    }
+}