Micro quad size increase + fix boarder outline around ssao

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

@@ -10,10 +10,12 @@ layout(location = 2) in flat vec4 tinting;
 layout(location = 3) in flat vec4 addin;
 layout(location = 4) in flat uint flags;
 layout(location = 5) in flat vec4 conditionalTinting;
+//layout(location = 6) in flat vec4 solidColour;
 
 layout(location = 0) out vec4 outColour;
 void main() {
     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);
     if ((flags&1u) == 1 && colour.a <= 0.25f) {
         discard;

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

@@ -12,6 +12,7 @@ layout(location = 2) out flat vec4 tinting;
 layout(location = 3) out flat vec4 addin;
 layout(location = 4) out flat uint flags;
 layout(location = 5) out flat vec4 conditionalTinting;
+//layout(location = 6) out flat vec4 solidColour;
 
 uint extractLodLevel() {
     return uint(gl_BaseInstance)>>27;
@@ -34,8 +35,12 @@ float getDepthOffset(uint faceData, uint face) {
 }
 
 vec2 getFaceSizeOffset(uint faceData, uint corner) {
+    float EPSILON = 0.001f;
     vec4 faceOffsetsSizes = extractFaceSizes(faceData);
-    return mix(faceOffsetsSizes.xz, -(1.0-faceOffsetsSizes.yw), bvec2(((corner>>1)&1u)==1, (corner&1u)==1));
+    //Expand the quads by a very small amount
+    faceOffsetsSizes.xz -= vec2(EPSILON);
+    faceOffsetsSizes.yw += vec2(EPSILON);
+    return mix(faceOffsetsSizes.xz, faceOffsetsSizes.yw-1.0f, bvec2(((corner>>1)&1u)==1, (corner&1u)==1));
 }
 
 //TODO: add a mechanism so that some quads can ignore backface culling
@@ -139,4 +144,7 @@ void main() {
             tinting.xyz *= 0.95f;
         }
     }
+
+
+    //solidColour = vec4(vec3(modelId&0xFu, (modelId>>4)&0xFu, (modelId>>8)&0xFu)*(1f/15f),1f);
 }

src/main/resources/assets/voxy/shaders/post/ssao.comp

@@ -48,11 +48,16 @@ void main() {
     if (any(lessThanEqual(size, gl_GlobalInvocationID.xy))) {
         return;
     }
-    vec2 point = vec2(gl_GlobalInvocationID.xy)/size;
-    float depth = texture(depthTex, point, -4.0f).r;
+    vec2 scale = vec2(1.0f)/size;
+    vec2 point = vec2(gl_GlobalInvocationID.xy)*scale;
+    point += scale*0.5f;//Offset to the center of the textile
+    float depth = texture(depthTex, point).r;
     vec4 ocolour = vec4(0);
     if (depth < 1.0f) {
         vec4 colour = texture(colourTex, point);
+        if (colour == vec4(0.0f, 0.0f, 0.0f, 0.0f)) {
+            ocolour = vec4(1.0f, 0.0f, 0.0f, 1.0f);
+        } else {
             uint metadata = uint(colour.w*255.0f);
             uint face = metadata&7u;
             uint lod = (metadata>>3)&7u;
@@ -75,6 +80,7 @@ void main() {
             ocolour.xyz *= ((1.0f-d)/3.0f+(2.0f/3.0f));
             ocolour.w = 1.0f;
         }
+    }
     imageStore(colourTexOut, ivec2(gl_GlobalInvocationID.xy), ocolour);
 }
 //vec4 ocolour =  vec4(max(0, d), abs(min(0,d)), 0, 1);