Added min chunk bounds + fix other bugs in model baking and other places

src/main/resources/assets/voxy/shaders/chunkoutline/outline.vsh

@@ -11,11 +11,13 @@ layout(binding = 1, std430) restrict readonly buffer ChunkPosBuffer {
 };
 
 void main() {
+    ivec3 origin = ivec3(chunkPos[gl_InstanceID], 0).xzy;
+    origin -= section.xyz;
+
     ivec3 cubeCornerI = ivec3(gl_VertexID&1, (gl_VertexID>>2)&1, (gl_VertexID>>1)&1);
-    cubeCornerI.xz += chunkPos[gl_InstanceID];
     //Expand the y height to be big (will be +- 8192)
     //TODO: make it W.R.T world height and offsets
-    cubeCornerI.y = cubeCornerI.y*1024-512;
-    cubeCornerI -= section.xyz;
-    gl_Position = MVP * vec4(vec3(cubeCornerI*16), 1);
+    cubeCornerI.y = cubeCornerI.y*32-16;
+    gl_Position = MVP * vec4(vec3(cubeCornerI+origin)*16, 1);
+    gl_Position.z -= 0.0001f;
 }

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

@@ -1,5 +1,6 @@
 #version 460 core
 layout(binding = 0) uniform sampler2D blockModelAtlas;
+layout(binding = 2) uniform sampler2D depthTex;
 
 //#define DEBUG_RENDER
 
@@ -19,6 +20,10 @@ layout(location = 6) in flat uint quadDebug;
 #endif
 layout(location = 0) out vec4 outColour;
 void main() {
+    //Check the minimum bounding texture and ensure we are greater than it
+    if (gl_FragCoord.z < texelFetch(depthTex, ivec2(gl_FragCoord.xy), 0).r) {
+        discard;
+    }
     vec2 uv = mod(uv, vec2(1.0))*(1.0/(vec2(3.0,2.0)*256.0));
     //vec4 colour = solidColour;
     vec4 colour = texture(blockModelAtlas, uv + baseUV, ((flags>>1)&1u)*-4.0);