Fixed multiple issues with mipmaps and alpha discard

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

@@ -30,14 +30,12 @@ void main() {
     //TODO: FIXME, need to manually compute the mip colour
     vec4 colour = texture(blockModelAtlas, texPos, ((flags>>1)&1u)*-5.0);//TODO: FIXME mipping needs to be fixed so that it doesnt go cross model bounds
     //Also, small quad is really fking over the mipping level somehow
-    if ((flags&1u) == 1 && colour.a <= 0.25f) {
+    if ((flags&1u) == 1 && (texture(blockModelAtlas, texPos, -16.0).a <= 0.1f)) {
         //This is stupidly stupidly bad for divergence
         //TODO: FIXME, basicly what this do is sample the exact pixel (no lod) for discarding, this stops mipmapping fucking it over
-        if (texture(blockModelAtlas, texPos, -4.0).a <= 0.1f) {
-            #ifndef DEBUG_RENDER
-            discard;
-            #endif
-        }
+        #ifndef DEBUG_RENDER
+        discard;
+        #endif
     }
 
     //Conditional tinting, TODO: FIXME: REPLACE WITH MASK OR SOMETHING, like encode data into the top bit of alpha