rendering improvements

begin adding weeping sky
datagen
bayer transparency

src/main/resources/assets/crystalline_sky/lang/en_us.json

@@ -1,2 +1,5 @@
 {
+  "block.crystalline_sky.sky": "Sky",
+  "block.crystalline_sky.weeping_sky": "Weeping Sky",
+  "block.crystalline_sky.sky_light": "Sky Light"
 }

src/main/resources/assets/crystalline_sky/shaders/core/terrain_sky.fsh

@@ -1,5 +1,6 @@
 #version 150
 
+#moj_import <minecraft:globals.glsl>
 #moj_import <minecraft:fog.glsl>
 #moj_import <minecraft:dynamictransforms.glsl>
 
@@ -11,12 +12,30 @@ in vec4 texProj0;
 
 out vec4 fragColor;
 
+#ifndef BAYER_BIAS
+#define BAYER_BIAS 0.0
+#endif
+
+#ifndef SCALE
+#define SCALE 1
+#endif
+
+const mat4x4 bayerMatrix4x4 = mat4x4(
+    0.0,  8.0,  2.0, 10.0,
+    12.0, 4.0,  14.0, 6.0,
+    3.0,  11.0, 1.0, 9.0,
+    15.0, 7.0,  13.0, 5.0
+) / 16.0;
+
 void main() {
-    vec4 color = textureProj(Sampler0, texProj0) * ColorModulator;
-#ifdef ALPHA_CUTOUT
-    if (color.a < ALPHA_CUTOUT) {
+    int x = int(gl_FragCoord.x / SCALE) % 4;
+    int y = int(gl_FragCoord.y / SCALE) % 4;
+    float bayer = bayerMatrix4x4[y][x];
+
+    if (ColorModulator.a <= bayer + BAYER_BIAS) {
         discard;
     }
-#endif
+
+    vec4 color = textureProj(Sampler0, texProj0) * vec4(ColorModulator.rgb, 1.0);
     fragColor = apply_fog(color, sphericalVertexDistance, cylindricalVertexDistance, FogEnvironmentalStart, FogEnvironmentalEnd, FogRenderDistanceStart, FogRenderDistanceEnd, FogColor);
 }