diff --git a/build.gradle b/build.gradle
index 1a915ca..146fa7f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,6 +20,8 @@ loom {
             sourceSet sourceSets.client
         }
     }
+
+    accessWidenerPath = file("src/main/resources/veila.accesswidener")
 }
 
 fabricApi {
diff --git a/src/client/java/su/divan2000/veila/client/render/fog/FogChunkProvider.java b/src/client/java/su/divan2000/veila/client/render/fog/FogChunkProvider.java
index b780660..af41635 100644
--- a/src/client/java/su/divan2000/veila/client/render/fog/FogChunkProvider.java
+++ b/src/client/java/su/divan2000/veila/client/render/fog/FogChunkProvider.java
@@ -1,58 +1,100 @@
 package su.divan2000.veila.client.render.fog;
 
-import java.nio.FloatBuffer;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.world.chunk.ChunkSection;
+import net.minecraft.world.chunk.WorldChunk;
+import net.minecraft.world.chunk.PalettedContainer;
+import java.util.Arrays;
 
 public final class FogChunkProvider {
-    static void fillChunk(
-            int chunkX,
-            int chunkZ,
-            FloatBuffer buffer
-    ) {
 
-        float density =
-                hash(chunkX, chunkZ);
+    public static boolean isChunkLoaded(int chunkX, int chunkZ) {
+        MinecraftClient client = MinecraftClient.getInstance();
 
-        for (int z = 0;
-             z < FogWorldVolume.CHUNK_SIZE;
-             z++) {
+        if (client.world == null) {
+            return false;
+        }
 
-            for (int y = 0;
-                 y < FogWorldVolume.SIZE_Y;
-                 y++) {
+        return client.world.getChunkManager().getWorldChunk(chunkX, chunkZ, false) != null;
+    }
 
-                int worldY =
-                        FogWorldVolume.MIN_Y + y;
-
-                float value =
-                        worldY < 70
-                                ? density
-                                : 0.0f;
-
-                for (int x = 0;
-                     x < FogWorldVolume.CHUNK_SIZE;
-                     x++) {
-
-                    buffer.put(value);
-                }
-            }
+    public static float computeVoxelValue(BlockState state) {
+        if (state.isOf(Blocks.POPPY)) {
+            return 0.2f;
+        } else if (state.isOf(Blocks.GRASS)) {
+            return 0.4f;
+        } else {
+            return 0.0f;
         }
     }
 
-    private static float hash(
-            int x,
-            int z
-    ) {
+    public static boolean fillChunkIntoArray(int chunkX, int chunkZ, float[] array) {
+        MinecraftClient client = MinecraftClient.getInstance();
 
-        int h = x * 73428767;
+        if (!isChunkLoaded(chunkX, chunkZ)) return false;
 
-        h ^= z * 912931;
+        WorldChunk chunk = client.world.getChunk(chunkX, chunkZ);
 
-        h ^= h >> 13;
+        ChunkSection[] sections = chunk.getSectionArray();
+        int bottomY = client.world.getBottomY();
+        int topYExclusive = bottomY + sections.length * 16;
 
-        h *= 1274126177;
+        int index = 0;
 
-        return ((h >>> 24) & 255)
-                / 255.0f
-                * 0.08f;
+        // Порядок циклов Z -> Y -> X критичен для glTexSubImage3D
+        for (int z = 0; z < FogWorldVolume.CHUNK_SIZE; z++) {
+            // Кэшируем секции и их состояние
+            int currentSectionIndex = -1;
+            ChunkSection currentSection = null;
+            PalettedContainer<BlockState> currentContainer = null;
+            boolean currentIsEmpty = false;
+
+            for (int y = 0; y < FogWorldVolume.SIZE_Y; y++) {
+                int worldY = FogWorldVolume.MIN_Y + y;
+
+                // За пределами мира (например, ниже -64)
+                if (worldY < bottomY || worldY >= topYExclusive) {
+                    Arrays.fill(array, index, index + FogWorldVolume.CHUNK_SIZE, 0.0f);
+                    index += FogWorldVolume.CHUNK_SIZE;
+                    continue;
+                }
+
+                int newSectionIndex = (worldY - bottomY) >> 4;
+                if (newSectionIndex != currentSectionIndex) {
+                    currentSectionIndex = newSectionIndex;
+                    currentSection = sections[currentSectionIndex];
+                    if (currentSection != null) {
+                        currentContainer = currentSection.getBlockStateContainer();
+                        currentIsEmpty = currentSection.isEmpty();
+                    } else {
+                        currentContainer = null;
+                        currentIsEmpty = true;
+                    }
+                }
+
+                int localY = worldY & 15;
+
+                // ОПТИМИЗАЦИЯ: Если текущая секция полностью пустая (только воздух)
+                if (currentIsEmpty) {
+                    Arrays.fill(array, index, index + FogWorldVolume.CHUNK_SIZE, 0.0f);
+                    index += FogWorldVolume.CHUNK_SIZE;
+                    continue;
+                }
+
+                // Предварительное вычисление базового индекса для строки Y и Z
+                // Формула локального индекса в секции 16x16x16: (y << 8) | (z << 4) | x
+                int baseIndex = (localY << 8) | (z << 4);
+
+                for (int x = 0; x < FogWorldVolume.CHUNK_SIZE; x++) {
+                    BlockState currentBlock = currentContainer.get(baseIndex | x);
+
+                    array[index++] = computeVoxelValue(currentBlock);
+                }
+            }
+        }
+
+        return true;
     }
-}
+}
\ No newline at end of file
diff --git a/src/client/java/su/divan2000/veila/client/render/fog/FogChunkStreamer.java b/src/client/java/su/divan2000/veila/client/render/fog/FogChunkStreamer.java
index fbcbf7a..9b407c1 100644
--- a/src/client/java/su/divan2000/veila/client/render/fog/FogChunkStreamer.java
+++ b/src/client/java/su/divan2000/veila/client/render/fog/FogChunkStreamer.java
@@ -1,173 +1,287 @@
 package su.divan2000.veila.client.render.fog;
 
-import java.nio.FloatBuffer;
+import net.minecraft.block.BlockState;
 
-import static su.divan2000.veila.client.render.fog.FogWorldVolume.CHUNK_SIZE;
-import static su.divan2000.veila.client.render.fog.FogWorldVolume.SIZE_Y;
+import java.util.concurrent.ConcurrentLinkedQueue;
 
 public final class FogChunkStreamer {
 
+    private enum ChunkStatus {
+        PENDING,
+        LOADED
+    }
+
+    // Очередь изменений блоков (потокобезопасная)
+    private static final ConcurrentLinkedQueue<BlockChangeEvent> blockChangeQueue =
+            new ConcurrentLinkedQueue<>();
+
+    private static final int TOTAL_CHUNKS =
+            FogWorldVolume.CHUNKS_X * FogWorldVolume.CHUNKS_Z;
+
+    private static final int CHUNK_DATA_SIZE =
+            FogWorldVolume.CHUNK_SIZE *
+                    FogWorldVolume.SIZE_Y *
+                    FogWorldVolume.CHUNK_SIZE;
+
+    private static final int MAX_CHUNKS_PER_TICK = 4;
+
+    private static final ChunkStatus[] statuses = new ChunkStatus[TOTAL_CHUNKS];
+    private static final boolean[] readyToUpload = new boolean[TOTAL_CHUNKS];
+
+    private static final float[][] preparedData = new float[TOTAL_CHUNKS][CHUNK_DATA_SIZE];
+    private static final int[] preparedWorldChunkX = new int[TOTAL_CHUNKS];
+    private static final int[] preparedWorldChunkZ = new int[TOTAL_CHUNKS];
+
+    private static volatile int currentOriginChunkX;
+    private static volatile int currentOriginChunkZ;
+    private static volatile int currentRingChunkOffsetX;
+    private static volatile int currentRingChunkOffsetZ;
+
+    private static boolean firstUpdate = true;
+
     private FogChunkStreamer() {
     }
 
+    private record BlockChangeEvent(
+            int chunkX,
+            int chunkZ,
+            int blockX,
+            int blockY,
+            int blockZ,
+            BlockState newState
+    ) {}
+
+    // Вызывается из любого потока (в том числе серверного)
+    public static void onBlockChanged(
+            int chunkX,
+            int chunkZ,
+            int blockX,
+            int blockY,
+            int blockZ,
+            BlockState newState
+    ) {
+        blockChangeQueue.add(new BlockChangeEvent(chunkX, chunkZ, blockX, blockY, blockZ, newState));
+    }
+
     public static void update(
             int oldOriginChunkX,
             int oldOriginChunkZ,
             int newOriginChunkX,
-            int newOriginChunkZ
+            int newOriginChunkZ,
+            int ringChunkOffsetX,
+            int ringChunkOffsetZ
     ) {
+        currentOriginChunkX = newOriginChunkX;
+        currentOriginChunkZ = newOriginChunkZ;
+        currentRingChunkOffsetX = ringChunkOffsetX;
+        currentRingChunkOffsetZ = ringChunkOffsetZ;
+
+        if (firstUpdate) {
+            markAllPending(newOriginChunkX, newOriginChunkZ);
+            firstUpdate = false;
+            return;
+        }
 
         int dx = newOriginChunkX - oldOriginChunkX;
         int dz = newOriginChunkZ - oldOriginChunkZ;
 
-        /*
-         * Телепорт.
-         */
-
-        if (Math.abs(dx) >= FogWorldVolume.CHUNKS_X ||
-                Math.abs(dz) >= FogWorldVolume.CHUNKS_Z) {
-
-            refillAll(
-                    newOriginChunkX,
-                    newOriginChunkZ
-            );
-
+        if (dx == 0 && dz == 0) {
+            uploadReadyData();
             return;
         }
 
-        /*
-         * Новые колонки.
-         */
+        if (Math.abs(dx) >= FogWorldVolume.CHUNKS_X ||
+                Math.abs(dz) >= FogWorldVolume.CHUNKS_Z) {
+            markAllPending(newOriginChunkX, newOriginChunkZ);
+            uploadReadyData();
+            return;
+        }
 
         if (dx > 0) {
-
             for (int i = 0; i < dx; i++) {
-
-                uploadColumn(
-                        newOriginChunkX +
-                                FogWorldVolume.CHUNKS_X - dx + i,
-                        newOriginChunkZ
-                );
+                int worldChunkX = newOriginChunkX + FogWorldVolume.CHUNKS_X - dx + i;
+                for (int z = 0; z < FogWorldVolume.CHUNKS_Z; z++) {
+                    markSlotPending(worldChunkX, newOriginChunkZ + z);
+                }
             }
         }
 
         if (dx < 0) {
-
             for (int i = 0; i < -dx; i++) {
-
-                uploadColumn(
-                        newOriginChunkX + i,
-                        newOriginChunkZ
-                );
+                int worldChunkX = newOriginChunkX + i;
+                for (int z = 0; z < FogWorldVolume.CHUNKS_Z; z++) {
+                    markSlotPending(worldChunkX, newOriginChunkZ + z);
+                }
             }
         }
 
-        /*
-         * Новые строки.
-         */
-
         if (dz > 0) {
-
-            for (int i = 0; i < dz; i++) {
-
-                uploadRow(
-                        newOriginChunkX,
-                        newOriginChunkZ +
-                                FogWorldVolume.CHUNKS_Z - dz + i
-                );
+            for (int x = 0; x < FogWorldVolume.CHUNKS_X; x++) {
+                int worldChunkX = newOriginChunkX + x;
+                for (int i = 0; i < dz; i++) {
+                    int worldChunkZ = newOriginChunkZ + FogWorldVolume.CHUNKS_Z - dz + i;
+                    markSlotPending(worldChunkX, worldChunkZ);
+                }
             }
         }
 
         if (dz < 0) {
-
-            for (int i = 0; i < -dz; i++) {
-
-                uploadRow(
-                        newOriginChunkX,
-                        newOriginChunkZ + i
-                );
-            }
-        }
-    }
-
-    private static void refillAll(
-            int originChunkX,
-            int originChunkZ
-    ) {
-
-        for (int z = 0; z < FogWorldVolume.CHUNKS_Z; z++) {
-
             for (int x = 0; x < FogWorldVolume.CHUNKS_X; x++) {
+                int worldChunkX = newOriginChunkX + x;
+                for (int i = 0; i < -dz; i++) {
+                    int worldChunkZ = newOriginChunkZ + i;
+                    markSlotPending(worldChunkX, worldChunkZ);
+                }
+            }
+        }
 
-                uploadChunk(
-                        originChunkX + x,
-                        originChunkZ + z
-                );
+        uploadReadyData();
+    }
+
+    // Обрабатывает очередь изменений блоков (только в render thread)
+    public static void processBlockChanges() {
+        BlockChangeEvent event;
+        while ((event = blockChangeQueue.poll()) != null) {
+            processSingleBlockChange(event);
+        }
+    }
+
+    private static void processSingleBlockChange(BlockChangeEvent event) {
+        int originX = currentOriginChunkX;
+        int originZ = currentOriginChunkZ;
+        int ringOffsetX = currentRingChunkOffsetX;
+        int ringOffsetZ = currentRingChunkOffsetZ;
+
+        // Проверяем, находится ли чанк в нашей области
+        int relativeX = event.chunkX - originX;
+        int relativeZ = event.chunkZ - originZ;
+
+        if (relativeX < 0 || relativeX >= FogWorldVolume.CHUNKS_X ||
+                relativeZ < 0 || relativeZ >= FogWorldVolume.CHUNKS_Z) {
+            return; // Чанк вне области обработки
+        }
+
+        // Вычисляем физический индекс
+        int physicalX = Math.floorMod(relativeX + ringOffsetX, FogWorldVolume.CHUNKS_X);
+        int physicalZ = Math.floorMod(relativeZ + ringOffsetZ, FogWorldVolume.CHUNKS_Z);
+
+        // Вычисляем позицию вокселя
+        int localX = event.blockX & 15;
+        int localZ = event.blockZ & 15;
+        int yIndex = event.blockY - FogWorldVolume.MIN_Y;
+
+        if (yIndex < 0 || yIndex >= FogWorldVolume.SIZE_Y) {
+            return; // Y вне диапазона
+        }
+
+        // Вычисляем значение для этого вокселя
+        float value = FogChunkProvider.computeVoxelValue(event.newState);
+
+        // Обновляем один воксель в текстуре
+        FogWorldVolume.updateSingleVoxel(
+                physicalX,
+                physicalZ,
+                localX,
+                yIndex,
+                localZ,
+                value
+        );
+    }
+
+    public static void processPending() {
+        int originX = currentOriginChunkX;
+        int originZ = currentOriginChunkZ;
+        int ringOffsetX = currentRingChunkOffsetX;
+        int ringOffsetZ = currentRingChunkOffsetZ;
+
+        int processedCount = 0;
+
+        for (int physicalIndex = 0; physicalIndex < TOTAL_CHUNKS; physicalIndex++) {
+            if (statuses[physicalIndex] != ChunkStatus.PENDING) {
+                continue;
+            }
+
+            if (processedCount >= MAX_CHUNKS_PER_TICK) {
+                break;
+            }
+
+            int physicalX = physicalIndex % FogWorldVolume.CHUNKS_X;
+            int physicalZ = physicalIndex / FogWorldVolume.CHUNKS_X;
+
+            int worldChunkX = originX + Math.floorMod(
+                    physicalX - ringOffsetX,
+                    FogWorldVolume.CHUNKS_X
+            );
+            int worldChunkZ = originZ + Math.floorMod(
+                    physicalZ - ringOffsetZ,
+                    FogWorldVolume.CHUNKS_Z
+            );
+
+            if (FogChunkProvider.fillChunkIntoArray(worldChunkX, worldChunkZ, preparedData[physicalIndex])) {
+                preparedWorldChunkX[physicalIndex] = worldChunkX;
+                preparedWorldChunkZ[physicalIndex] = worldChunkZ;
+                readyToUpload[physicalIndex] = true;
+                processedCount++;
             }
         }
     }
 
-    private static void uploadColumn(
-            int worldChunkX,
-            int originChunkZ
-    ) {
-
-        for (int z = 0; z < FogWorldVolume.CHUNKS_Z; z++) {
-
-            uploadChunk(
-                    worldChunkX,
-                    originChunkZ + z
-            );
+    private static void markAllPending(int originChunkX, int originChunkZ) {
+        for (int physicalZ = 0; physicalZ < FogWorldVolume.CHUNKS_Z; physicalZ++) {
+            for (int physicalX = 0; physicalX < FogWorldVolume.CHUNKS_X; physicalX++) {
+                int worldChunkX = originChunkX + physicalX;
+                int worldChunkZ = originChunkZ + physicalZ;
+                markSlotPending(worldChunkX, worldChunkZ);
+            }
         }
     }
 
-    private static void uploadRow(
-            int originChunkX,
-            int worldChunkZ
-    ) {
+    private static void markSlotPending(int worldChunkX, int worldChunkZ) {
+        int physicalX = Math.floorMod(worldChunkX, FogWorldVolume.CHUNKS_X);
+        int physicalZ = Math.floorMod(worldChunkZ, FogWorldVolume.CHUNKS_Z);
+        int physicalIndex = physicalZ * FogWorldVolume.CHUNKS_X + physicalX;
 
-        for (int x = 0; x < FogWorldVolume.CHUNKS_X; x++) {
+        FogWorldVolume.uploadZeros(physicalX, physicalZ);
+        statuses[physicalIndex] = ChunkStatus.PENDING;
+        readyToUpload[physicalIndex] = false;
+    }
 
-            uploadChunk(
-                    originChunkX + x,
-                    worldChunkZ
+    public static void uploadReadyData() {
+        int originX = currentOriginChunkX;
+        int originZ = currentOriginChunkZ;
+        int ringOffsetX = currentRingChunkOffsetX;
+        int ringOffsetZ = currentRingChunkOffsetZ;
+
+        for (int physicalIndex = 0; physicalIndex < TOTAL_CHUNKS; physicalIndex++) {
+            if (!readyToUpload[physicalIndex]) {
+                continue;
+            }
+
+            int physicalX = physicalIndex % FogWorldVolume.CHUNKS_X;
+            int physicalZ = physicalIndex / FogWorldVolume.CHUNKS_X;
+
+            int currentWorldX = originX + Math.floorMod(
+                    physicalX - ringOffsetX,
+                    FogWorldVolume.CHUNKS_X
             );
+            int currentWorldZ = originZ + Math.floorMod(
+                    physicalZ - ringOffsetZ,
+                    FogWorldVolume.CHUNKS_Z
+            );
+
+            if (preparedWorldChunkX[physicalIndex] == currentWorldX &&
+                    preparedWorldChunkZ[physicalIndex] == currentWorldZ) {
+
+                FogWorldVolume.uploadChunkFromArray(
+                        physicalX,
+                        physicalZ,
+                        preparedData[physicalIndex]
+                );
+
+                statuses[physicalIndex] = ChunkStatus.LOADED;
+            }
+
+            readyToUpload[physicalIndex] = false;
         }
     }
-
-    private static void uploadChunk(
-            int worldChunkX,
-            int worldChunkZ
-    ) {
-
-        FloatBuffer buffer =
-                FogWorldVolume.chunkBuffer();
-
-        FogChunkProvider.fillChunk(
-                worldChunkX,
-                worldChunkZ,
-                buffer
-        );
-
-        buffer.flip();
-
-        int physicalChunkX =
-                Math.floorMod(
-                        worldChunkX,
-                        FogWorldVolume.CHUNKS_X
-                );
-
-        int physicalChunkZ =
-                Math.floorMod(
-                        worldChunkZ,
-                        FogWorldVolume.CHUNKS_Z
-                );
-
-        FogWorldVolume.uploadChunk(
-                physicalChunkX,
-                physicalChunkZ,
-                buffer
-        );
-    }
-
 }
\ No newline at end of file
diff --git a/src/client/java/su/divan2000/veila/client/render/fog/FogSystem.java b/src/client/java/su/divan2000/veila/client/render/fog/FogSystem.java
index d70a367..eeabc4c 100644
--- a/src/client/java/su/divan2000/veila/client/render/fog/FogSystem.java
+++ b/src/client/java/su/divan2000/veila/client/render/fog/FogSystem.java
@@ -2,8 +2,6 @@ package su.divan2000.veila.client.render.fog;
 
 import net.minecraft.client.MinecraftClient;
 
-import java.nio.FloatBuffer;
-
 public final class FogSystem {
 
     private static boolean initialized;
@@ -17,12 +15,6 @@ public final class FogSystem {
     private FogSystem() {
     }
 
-    /*
-     * Вызывается в начале render()
-     *
-     * Только Render Thread.
-     */
-
     public static void beginRender() {
 
         if (!initialized) {
@@ -30,64 +22,23 @@ public final class FogSystem {
         }
 
         updateWindow();
-    }
 
-    /*
-     * Вызывается каждый client tick.
-     *
-     * Пока пусто.
-     */
+        // Всегда копируем готовые данные в текстуру
+        FogChunkStreamer.uploadReadyData();
+
+        // Всегда обрабатываем изменения блоков
+        FogChunkStreamer.processBlockChanges();
+    }
 
     public static void tick() {
-
+        FogChunkStreamer.processPending();
     }
 
-    /*
-     * Инициализация всей системы.
-     */
-
     private static void initialize() {
-
         FogWorldVolume.init();
-
         initialized = true;
     }
 
-    /*
-     * Пока просто заполняем весь объём
-     * тестовыми чанками.
-     */
-
-    private static void fillTestVolume() {
-
-        for (int chunkZ = 0;
-             chunkZ < FogWorldVolume.CHUNKS_Z;
-             chunkZ++) {
-
-            for (int chunkX = 0;
-                 chunkX < FogWorldVolume.CHUNKS_X;
-                 chunkX++) {
-
-                FloatBuffer buffer =
-                        FogWorldVolume.chunkBuffer();
-
-                FogChunkProvider.fillChunk(
-                        originChunkX + chunkX,
-                        originChunkZ + chunkZ,
-                        buffer
-                );
-
-                buffer.flip();
-
-                FogWorldVolume.uploadChunk(
-                        chunkX,
-                        chunkZ,
-                        buffer
-                );
-            }
-        }
-    }
-
     private static void updateWindow() {
 
         MinecraftClient client = MinecraftClient.getInstance();
@@ -126,7 +77,9 @@ public final class FogSystem {
                 oldOriginChunkX,
                 oldOriginChunkZ,
                 originChunkX,
-                originChunkZ
+                originChunkZ,
+                ringChunkOffsetX,
+                ringChunkOffsetZ
         );
     }
 
diff --git a/src/client/java/su/divan2000/veila/client/render/fog/FogWorldVolume.java b/src/client/java/su/divan2000/veila/client/render/fog/FogWorldVolume.java
index 996f251..bcc94c1 100644
--- a/src/client/java/su/divan2000/veila/client/render/fog/FogWorldVolume.java
+++ b/src/client/java/su/divan2000/veila/client/render/fog/FogWorldVolume.java
@@ -43,6 +43,11 @@ public final class FogWorldVolume {
      * 16 × 384 × 16
      */
 
+    private static final float[] ZEROS_ARRAY = new float[CHUNK_SIZE * SIZE_Y * CHUNK_SIZE];
+    static {
+        java.util.Arrays.fill(ZEROS_ARRAY, 0.0f);
+    }
+
     private static final FloatBuffer CHUNK_BUFFER =
             BufferUtils.createFloatBuffer(
                     CHUNK_SIZE *
@@ -50,6 +55,10 @@ public final class FogWorldVolume {
                             CHUNK_SIZE
             );
 
+
+    private static final FloatBuffer SINGLE_VOXEL_BUFFER =
+            BufferUtils.createFloatBuffer(1);
+
     private FogWorldVolume() {
     }
 
@@ -93,7 +102,7 @@ public final class FogWorldVolume {
         GL11.glTexParameteri(
                 GL12.GL_TEXTURE_3D,
                 GL12.GL_TEXTURE_WRAP_S,
-                GL12.GL_CLAMP_TO_EDGE
+                GL12.GL_REPEAT
         );
 
         GL11.glTexParameteri(
@@ -105,7 +114,7 @@ public final class FogWorldVolume {
         GL11.glTexParameteri(
                 GL12.GL_TEXTURE_3D,
                 GL12.GL_TEXTURE_WRAP_R,
-                GL12.GL_CLAMP_TO_EDGE
+                GL12.GL_REPEAT
         );
 
         GL11.glBindTexture(
@@ -188,6 +197,58 @@ public final class FogWorldVolume {
         GL11.glBindTexture(GL12.GL_TEXTURE_3D, 0);
     }
 
+    public static void updateSingleVoxel(
+            int textureChunkX,
+            int textureChunkZ,
+            int localX,
+            int localY,
+            int localZ,
+            float value
+    ) {
+        GL11.glBindTexture(GL12.GL_TEXTURE_3D, texture);
+
+        SINGLE_VOXEL_BUFFER.clear();
+        SINGLE_VOXEL_BUFFER.put(value);
+        SINGLE_VOXEL_BUFFER.flip();
+
+        GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);
+        GL11.glPixelStorei(GL11.GL_UNPACK_ROW_LENGTH, 0);
+        GL11.glPixelStorei(GL11.GL_UNPACK_SKIP_PIXELS, 0);
+        GL11.glPixelStorei(GL11.GL_UNPACK_SKIP_ROWS, 0);
+
+        GL30.glTexSubImage3D(
+                GL12.GL_TEXTURE_3D,
+                0,
+                textureChunkX * CHUNK_SIZE + localX,
+                localY,
+                textureChunkZ * CHUNK_SIZE + localZ,
+                1, 1, 1,
+                GL11.GL_RED,
+                GL11.GL_FLOAT,
+                SINGLE_VOXEL_BUFFER
+        );
+
+        GL11.glBindTexture(GL12.GL_TEXTURE_3D, 0);
+    }
+
+    public static void uploadZeros(int textureChunkX, int textureChunkZ) {
+        FloatBuffer buffer = chunkBuffer();
+        buffer.put(ZEROS_ARRAY);
+        buffer.flip();
+        uploadChunk(textureChunkX, textureChunkZ, buffer);
+    }
+
+    public static void uploadChunkFromArray(
+            int textureChunkX,
+            int textureChunkZ,
+            float[] data
+    ) {
+        FloatBuffer buffer = chunkBuffer();
+        buffer.put(data);
+        buffer.flip();
+        uploadChunk(textureChunkX, textureChunkZ, buffer);
+    }
+
     public static FloatBuffer chunkBuffer() {
 
         CHUNK_BUFFER.clear();
diff --git a/src/client/java/su/divan2000/veila/mixin/client/WorldChunkMixin.java b/src/client/java/su/divan2000/veila/mixin/client/WorldChunkMixin.java
new file mode 100644
index 0000000..5130978
--- /dev/null
+++ b/src/client/java/su/divan2000/veila/mixin/client/WorldChunkMixin.java
@@ -0,0 +1,41 @@
+package su.divan2000.veila.mixin.client;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.chunk.WorldChunk;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import su.divan2000.veila.client.render.fog.FogChunkStreamer;
+
+@Mixin(WorldChunk.class)
+public class WorldChunkMixin {
+    @Inject(
+            method = "setBlockState",
+            at = @At("RETURN")
+    )
+    private void veila$onBlockChanged(
+            BlockPos pos,
+            BlockState state,
+            boolean moved,
+            CallbackInfoReturnable<BlockState> cir
+    ) {
+        // Только если блок реально изменился
+        if (cir.getReturnValue() != null) {
+            WorldChunk self = (WorldChunk) (Object) this;
+            int chunkX = self.getPos().x;
+            int chunkZ = self.getPos().z;
+
+            // Уведомляем стример об изменении
+            FogChunkStreamer.onBlockChanged(
+                    chunkX,
+                    chunkZ,
+                    pos.getX(),
+                    pos.getY(),
+                    pos.getZ(),
+                    state
+            );
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/client/resources/assets/veila/shaders/red.frag b/src/client/resources/assets/veila/shaders/red.frag
index d6e707e..ecddfd7 100644
--- a/src/client/resources/assets/veila/shaders/red.frag
+++ b/src/client/resources/assets/veila/shaders/red.frag
@@ -20,18 +20,27 @@ out vec4 FragColor;
 // Настройки
 //------------------------------------------------------------
 
-const float STEP_SIZE    = 0.5;
-const float MAX_DISTANCE = 256.0;
-const int MAX_STEPS = int(MAX_DISTANCE / STEP_SIZE);
-
-// Размер туманного объёма
 const float FOG_SIZE_X = 256.0;
-const float FOG_SIZE_Z = 256.0;
+const float FOG_SIZE_Z = FOG_SIZE_X;
+
+const int MAX_STEPS = 256;  // Уменьшили количество шагов благодаря адаптивности
 
 // Высота мира
 const float WORLD_BOTTOM = -64.0;
 const float WORLD_HEIGHT = 384.0;
 
+const float MAX_DISTANCE = (FOG_SIZE_X / 2.0) - 18.0;
+
+// Коэффициент нелинейности распределения шагов:
+// 1.0 = равномерные шаги (как было)
+// 1.5 = мягкое увеличение (рекомендуется для начала)
+// 2.0 = линейный рост размера шага с расстоянием (хороший баланс)
+// 2.5 = более агрессивное увеличение (лучшая производительность)
+const float GAMMA = 2.0;
+
+// Включение jittering для устранения banding артефактов
+const bool USE_JITTERING = true;
+
 //------------------------------------------------------------
 
 vec3 reconstructViewPosition(vec2 uv)
@@ -68,23 +77,19 @@ float density(vec3 worldPos)
     float localZ = worldPos.z - float(FogOrigin.y);
 
     if (
-        localX < 0.0 || localX >= FOG_SIZE_X ||
-        localZ < 0.0 || localZ >= FOG_SIZE_Z ||
-        worldPos.y < WORLD_BOTTOM ||
-        worldPos.y >= WORLD_BOTTOM + WORLD_HEIGHT
+    localX < 0.0 || localX >= FOG_SIZE_X ||
+    localZ < 0.0 || localZ >= FOG_SIZE_Z ||
+    worldPos.y < WORLD_BOTTOM ||
+    worldPos.y >= WORLD_BOTTOM + WORLD_HEIGHT
     ){
         return 0.0;
     }
 
-    float physicalX = mod(
-        localX + float(RingBlockOffset.x),
-        FOG_SIZE_X
-    );
+    float physicalX =
+        localX + float(RingBlockOffset.x);
 
-    float physicalZ = mod(
-        localZ + float(RingBlockOffset.y),
-        FOG_SIZE_Z
-    );
+    float physicalZ =
+        localZ + float(RingBlockOffset.y);
 
     uv.x = physicalX / FOG_SIZE_X;
     uv.z = physicalZ / FOG_SIZE_Z;
@@ -95,6 +100,21 @@ float density(vec3 worldPos)
 
 //------------------------------------------------------------
 
+// Псевдослучайное значение для jittering (детерминированное по UV)
+float random(vec2 st)
+{
+    return fract(sin(dot(st.xy, vec2(12.9898, 78.233))) * 43758.5453123);
+}
+
+// Функция нелинейного маппинга параметра t [0,1] в расстояние
+// Использует степенную функцию для распределения шагов
+float mapParameterToDistance(float t)
+{
+    return MAX_DISTANCE * pow(t, GAMMA);
+}
+
+//------------------------------------------------------------
+
 void main()
 {
     vec4 sceneColor = texture(DiffuseSampler, texCoord);
@@ -109,17 +129,52 @@ void main()
     vec3 samplePos = CameraPosition;
 
     float fog = 0.0;
+    float currentDistance = 0.0;
 
-    for (int i = 0; i < MAX_STEPS; i++)
-    {
-        float traveled = float(i) * STEP_SIZE;
+    // Jittering начальной позиции для устранения banding (ступенчатых артефактов)
+    // Это стандартная техника в volumetric rendering
+    float jitter = 0.0;
+    if (USE_JITTERING) {
+        // Вычисляем размер первого шага для корректного jittering
+        float firstStep = mapParameterToDistance(1.0 / float(MAX_STEPS));
+        jitter = random(texCoord) * firstStep;
+        currentDistance = jitter;
+        samplePos += rayDir * currentDistance;
+    }
 
-        if (traveled >= rayLength)
-        break;
+    for (int i = 0; i < MAX_STEPS; i++) {
+        // Параметр t меняется от 0 до 1
+        float t = float(i + 1) / float(MAX_STEPS);
 
-        samplePos += rayDir * STEP_SIZE;
+        // Вычисляем следующее расстояние через нелинейное маппинг
+        float nextDistance = mapParameterToDistance(t);
 
-        fog += density(samplePos) * STEP_SIZE;
+        // Ограничиваем максимальной длиной луча
+        if (nextDistance > rayLength) {
+            nextDistance = rayLength;
+        }
+
+        // Размер текущего шага
+        float stepSize = nextDistance - currentDistance;
+
+        // Проверяем, не вышли ли за пределы луча
+        if (stepSize <= 0.0) {
+            break;
+        }
+
+        // Продвигаемся по лучу
+        samplePos += rayDir * stepSize;
+
+        // Интегрируем плотность (Beer-Lambert law approximation)
+        // Важно умножать на stepSize для корректной физической модели
+        fog += density(samplePos) * stepSize;
+
+        currentDistance = nextDistance;
+
+        // Прерываем, если достигли конца луча
+        if (currentDistance >= rayLength) {
+            break;
+        }
     }
 
     fog = clamp(fog, 0.0, 1.0);
diff --git a/src/client/resources/veila.client.mixins.json b/src/client/resources/veila.client.mixins.json
index 76fa6b9..e3e8d7b 100644
--- a/src/client/resources/veila.client.mixins.json
+++ b/src/client/resources/veila.client.mixins.json
@@ -5,7 +5,8 @@
   "compatibilityLevel": "JAVA_17",
   "client": [
     "GameRendererMixin",
-    "MinecraftClientMixin"
+    "MinecraftClientMixin",
+    "WorldChunkMixin"
   ],
   "injectors": {
     "defaultRequire": 1
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index 1107183..cf63573 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -2,6 +2,7 @@
   "schemaVersion": 1,
   "id": "veila",
   "version": "${version}",
+  "accessWidener": "veila.accesswidener",
 
   "name": "Veila",
   "description": "",
diff --git a/src/main/resources/veila.accesswidener b/src/main/resources/veila.accesswidener
new file mode 100644
index 0000000..8d1dbf8
--- /dev/null
+++ b/src/main/resources/veila.accesswidener
@@ -0,0 +1,2 @@
+accessWidener v2 named
+accessible method net/minecraft/world/chunk/PalettedContainer get (I)Ljava/lang/Object;
\ No newline at end of file