Forgot palette

src/lwjgl/java/net/minestom/demo/largeframebuffers/OpenGLRendering.java

@@ -68,7 +68,7 @@ public final  class OpenGLRendering {
     private static int boxTexture;
 
     static void init() {
-    //    GLUtil.setupDebugMessageCallback();
+        GLUtil.setupDebugMessageCallback();
 
         paletteTexture = loadTexture("palette");
         boxTexture = loadTexture("box");

src/lwjgl/java/net/minestom/demo/largeframebuffers/PaletteGenerator.java

@@ -12,13 +12,13 @@ import java.util.Map;
 public class PaletteGenerator {
 
     public static void main(String[] args) {
-        Map<Byte, Integer> colors = new HashMap<>();
+        Map<Integer, Integer> colors = new HashMap<>();
         int highestIndex = 0;
         for(MapColors c : MapColors.values()) {
             for(MapColors.Multiplier m : MapColors.Multiplier.values()) {
-                byte index = m.apply(c);
-                if(((int)index & 0xFF) > highestIndex) {
-                    highestIndex = ((int)index) & 0xFF;
+                int index = ((int)m.apply(c)) & 0xFF;
+                if(index > highestIndex) {
+                    highestIndex = index;
                 }
                 int rgb = MapColors.PreciseMapColor.toRGB(c, m);
                 colors.put(index, rgb);
@@ -27,8 +27,8 @@ public class PaletteGenerator {
 
         BufferedImage paletteTexture = new BufferedImage(highestIndex+1, 1, BufferedImage.TYPE_INT_ARGB);
         for (int i = 0; i <= highestIndex; i++) {
-            int rgb = colors.getOrDefault((byte)i, 0);
-            int argb = (0xFF << 24) | rgb;
+            int rgb = colors.getOrDefault(i, 0);
+            int argb = (0xFF << 24) | (rgb & 0xFFFFFF);
             paletteTexture.setRGB(i, 0, argb);
         }
 

src/lwjgl/resources/shaders/fragment.glsl

@@ -14,16 +14,16 @@ void main() {
 
     // render in map colors
     int closest = 0;
-    float distance = 1.0f/0.0f;
+    uint closestDistance = uint(2147483647);
     for(int i = 1; i < paletteSize; i++) {
         vec3 mapColor = texture(palette, vec2(i/paletteSize, 0.0)).rgb;
-        float dr = mapColor.r - vertexColor.r;
-        float dg = mapColor.g - vertexColor.g;
-        float db = mapColor.b - vertexColor.b;
+        int dr = int((mapColor.r - vertexColor.r)*255);
+        int dg = int((mapColor.g - vertexColor.g)*255);
+        int db = int((mapColor.b - vertexColor.b)*255);
 
-        float d = dr*dr+dg*dg+db*db;
-        if(d < distance) {
-            distance = d;
+        uint d = uint(dr*dr)+uint(dg*dg)+uint(db*db);
+        if(d < closestDistance) {
+            closestDistance = d;
             closest = i;
         }
     }