Textures almost working, fixed up the mesher being a dumbass

src/main/resources/assets/zenith/shaders/lod/gl46/bindings.glsl

@@ -29,6 +29,8 @@ struct DrawCommand {
     uint  baseInstance;
 };
 
+layout(binding = 0) uniform sampler2D blockModelAtlas;
+
 #ifndef Quad
 #define Quad ivec2
 #endif
@@ -65,3 +67,5 @@ vec4 getLighting(uint index) {
     arr = arr & uvec4(0xFF);
     return vec4(arr)*vec4(1.0f/255.0f);
 }
+
+

src/main/resources/assets/zenith/shaders/lod/gl46/quads.frag

@@ -1,8 +1,9 @@
 #version 460 core
-layout(location = 0) in flat vec4 colour;
+layout(binding = 0) uniform sampler2D blockModelAtlas;
+layout(location = 0) in vec2 uv;
 layout(location = 0) out vec4 outColour;
 void main() {
-    //TODO: randomly discard the fragment with respect to the alpha value
+    vec2 uv = mod(uv, vec2(1));
 
-    outColour = colour;
+    outColour = texture(blockModelAtlas, uv);
 }

src/main/resources/assets/zenith/shaders/lod/gl46/quads.vert

@@ -4,7 +4,7 @@
 #import <zenith:lod/gl46/quad_format.glsl>
 #import <zenith:lod/gl46/bindings.glsl>
 
-layout(location = 0) out flat vec4 colour;
+layout(location = 0) out vec2 uv;
 
 uint extractLodLevel() {
     return uint(gl_BaseInstance)>>29;
@@ -41,7 +41,8 @@ void main() {
         cornerIdx ^= 1;
     }
 
-    ivec2 size = extractSize(quad) * ivec2((cornerIdx>>1)&1, cornerIdx&1) * (1<<lodLevel);
+    ivec2 sizePreLod = extractSize(quad) * ivec2((cornerIdx>>1)&1, cornerIdx&1);
+    ivec2 size = sizePreLod * (1<<lodLevel);
 
     vec3 pos = corner;
 
@@ -63,19 +64,8 @@ void main() {
 
     uint stateId = extractStateId(quad);
     uint biomeId = extractBiomeId(quad);
-    BlockModel stateInfo = modelData[stateId];
-    colour = uint2vec4RGBA(stateInfo.faceColours[face]);
-
-    colour *= getLighting(extractLightId(quad));
-
-    //Apply face tint
-    if (face == 0) {
-        colour.xyz *= vec3(0.75, 0.75, 0.75);
-    } else if (face != 1) {
-        colour.xyz *= vec3((float(face-2)/4)*0.6 + 0.4);
-    }
-
 
+    uv = vec2(sizePreLod);
 }
 //gl_Position = MVP * vec4(vec3(((cornerIdx)&1)+10,10,((cornerIdx>>1)&1)+10),1);
 //uint i = uint(quad>>32);