base emissive support

Author: MCRcortex

src/main/java/me/cortex/voxy/client/core/model/ModelFactory.java

@@ -582,6 +582,9 @@ private ModelBakeResultUpload processTextureBakeResult(int blockId, BlockState b
         boolean canBeCorrectlyRendered = true;//This represents if a model can be correctly (perfectly) represented
         // i.e. no gaps
 
+        //block emission
+        metadata |= ((long)getBlockLightEmission(blockState))<<(48+7);
+
         this.metadataCache[modelId] = metadata;
 
         uploadPtr += 4*6;
@@ -652,6 +655,39 @@ private ModelBakeResultUpload processTextureBakeResult(int blockId, BlockState b
         return uploadResult;
     }
 
+    private static int getBlockLightEmission(BlockState state) {
+        boolean isEmissive = state.emissiveRendering(new BlockGetter() {
+            @Override
+            public @org.jspecify.annotations.Nullable BlockEntity getBlockEntity(BlockPos pos) {
+                return null;
+            }
+
+            @Override
+            public BlockState getBlockState(BlockPos pos) {
+                return state;
+            }
+
+            @Override
+            public FluidState getFluidState(BlockPos pos) {
+                return state.getFluidState();
+            }
+
+            @Override
+            public int getHeight() {
+                return 0;
+            }
+
+            @Override
+            public int getMinY() {
+                return 0;
+            }
+        }, BlockPos.ZERO);
+        if (isEmissive) {
+            return 15;//full bright
+        }
+        return state.getLightEmission();
+    }
+
     private static final class BiomeUploadResult implements ResultUploader {
         private final MemoryBuffer biomeColourBuffer;
         private final MemoryBuffer modelBiomeIndexPairs;

src/main/java/me/cortex/voxy/client/core/model/ModelQueries.java

@@ -22,43 +22,43 @@ public static boolean isDoubleSided(long metadata) {
     }
 
     public static long _isDoubleSided(long metadata) {
-        return ((metadata>>(8*6+2))&1);
+        return ((metadata>>(8*6+2))&1L);
     }
 
     public static boolean isTranslucent(long metadata) {
         return ((metadata>>(8*6))&2) != 0;
     }
 
     public static long _isTranslucent(long metadata) {
-        return ((metadata>>(8*6+1))&1);
+        return ((metadata>>(8*6+1))&1L);
     }
 
     public static boolean containsFluid(long metadata) {
         return ((metadata>>(8*6))&8) != 0;
     }
 
     public static long _containsFluid(long metadata) {
-        return ((metadata>>(8*6+3))&1);
+        return ((metadata>>(8*6+3))&1L);
     }
 
     public static boolean isFluid(long metadata) {
         return ((metadata>>(8*6))&16) != 0;
     }
 
     public static long _isFluid(long metadata) {
-        return ((metadata>>(8*6+4))&1);
+        return ((metadata>>(8*6+4))&1L);
     }
 
     public static boolean isBiomeColoured(long metadata) {
-        return ((metadata>>(8*6))&1) != 0;
+        return ((metadata>>(8*6))&1L) != 0;
     }
 
     public static long _isBiomeColoured(long metadata) {
-        return ((metadata>>(8*6))&1);
+        return ((metadata>>(8*6))&1L);
     }
 
     public static long _notIsBiomeColoured(long metadata) {
-        return (((~metadata)>>(8*6))&1);
+        return (((~metadata)>>(8*6))&1L);
     }
 
     //NOTE: this might need to be moved to per face
@@ -71,6 +71,10 @@ public static boolean isFullyOpaque(long metadata) {
     }
 
     public static long _isFullyOpaque(long metadata) {
-        return ((metadata>>(8*6+6))&1);
+        return ((metadata>>(8*6+6))&1L);
+    }
+
+    public static long lightEmission(long meta) {
+        return (meta>>(8*6+7))&0xFL;
     }
 }

src/main/java/me/cortex/voxy/client/core/rendering/building/RenderDataFactory.java

@@ -370,6 +370,15 @@ private static void meshNonOpaqueFace(int face, long quad, long meta, long neigh
         }
     }
 
+    private static long getQuadLight(long quad, long selfmeta) {
+        final long BLMSK = 0xFL<<(55+4);//block light mask
+        long bl = quad&BLMSK;
+        bl = Math.max(bl, ModelQueries.lightEmission(selfmeta)<<(55+4));
+        quad &= ~(BLMSK);
+        quad |= bl;
+        return quad;
+    }
+
     private void generateYZOpaqueInnerGeometry(int axis) {
         for (int layer = 0; layer < 31; layer++) {
             this.blockMesher.auxiliaryPosition = layer;