changes and attempted fixes

src/main/java/me/cortex/voxy/client/core/AbstractRenderPipeline.java

@@ -98,6 +98,8 @@ public abstract class AbstractRenderPipeline extends TrackedObject {
         glBlitNamedFramebuffer(sourceFrameBuffer, targetFb, 0,0, width, height, 0,0, width, height, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
 
         glBindFramebuffer(GL30.GL_FRAMEBUFFER, targetFb);
+        //GL11C.glClearStencil(1);
+        //GL11C.glClear(GL_STENCIL_BUFFER_BIT);
 
         //This whole thing is hell, we basicly want to create a mask stenicel/depth mask specificiclly
         // in theory we could do this in a single pass by passing in the depth buffer from the sourceFrambuffer

src/main/java/me/cortex/voxy/client/core/gl/Capabilities.java

@@ -25,9 +25,11 @@ public class Capabilities {
     public final boolean indirectParameters;
     public final boolean isIntel;
     public final boolean subgroup;
+    public final boolean sparseBuffer;
 
     public Capabilities() {
         var cap = GL.getCapabilities();
+        this.sparseBuffer = cap.GL_ARB_sparse_buffer;
         this.compute = cap.glDispatchComputeIndirect != 0;
         this.indirectParameters = cap.glMultiDrawElementsIndirectCountARB != 0;
         this.repFragTest = cap.GL_NV_representative_fragment_test;

src/main/java/me/cortex/voxy/client/core/gl/GlBuffer.java

@@ -4,6 +4,7 @@ import me.cortex.voxy.common.util.TrackedObject;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.system.MemoryUtil;
 
+import static org.lwjgl.opengl.ARBSparseBuffer.GL_SPARSE_STORAGE_BIT_ARB;
 import static org.lwjgl.opengl.GL11.GL_UNSIGNED_BYTE;
 import static org.lwjgl.opengl.GL15.glDeleteBuffers;
 import static org.lwjgl.opengl.GL45C.*;
@@ -23,7 +24,9 @@ public class GlBuffer extends TrackedObject {
         this.id = glCreateBuffers();
         this.size = size;
         glNamedBufferStorage(this.id, size, flags);
-        this.zero();
+        if ((flags&GL_SPARSE_STORAGE_BIT_ARB)==0) {
+            this.zero();
+        }
 
         COUNT++;
         TOTAL_SIZE += size;

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

@@ -1,6 +1,7 @@
 package me.cortex.voxy.client.core.model;
 
 import net.caffeinemc.mods.sodium.client.util.color.ColorSRGB;
+import net.minecraft.client.texture.MipmapHelper;
 
 //Texturing utils to manipulate data from the model bakery
 public class TextureUtils {
@@ -177,7 +178,11 @@ public class TextureUtils {
 
 
     public static int mipColours(int one, int two, int three, int four) {
-        return weightedAverageColor(weightedAverageColor(one, two), weightedAverageColor(three, four));
+        if (true) {
+            return MipmapHelper.blend(one, two, three, four, false);
+        } else {
+            return weightedAverageColor(weightedAverageColor(one, two), weightedAverageColor(three, four));
+        }
     }
 
     //TODO: FIXME!!! ITS READING IT AS ABGR??? isnt the format RGBA??

src/main/java/me/cortex/voxy/client/core/rendering/section/geometry/BasicSectionGeometryData.java

@@ -4,7 +4,9 @@ import me.cortex.voxy.client.core.gl.Capabilities;
 import me.cortex.voxy.client.core.gl.GlBuffer;
 import me.cortex.voxy.common.Logger;
 
-import static org.lwjgl.opengl.GL11C.glFinish;
+import static org.lwjgl.opengl.ARBSparseBuffer.GL_SPARSE_STORAGE_BIT_ARB;
+import static org.lwjgl.opengl.ARBSparseBuffer.glNamedBufferPageCommitmentARB;
+import static org.lwjgl.opengl.GL11C.*;
 
 public class BasicSectionGeometryData implements IGeometryData {
     public static final int SECTION_METADATA_SIZE = 32;
@@ -28,7 +30,26 @@ public class BasicSectionGeometryData implements IGeometryData {
         }
         Logger.info(msg);
         Logger.info("if your game crashes/exits here without any other log message, try manually decreasing the geometry capacity");
-        this.geometryBuffer = new GlBuffer(geometryCapacity);
+        glGetError();//Clear any errors
+        var buffer = new GlBuffer(geometryCapacity);
+        int error = glGetError();
+        if (error != GL_NO_ERROR) {
+            if (error == GL_OUT_OF_MEMORY && Capabilities.INSTANCE.sparseBuffer) {
+                Logger.error("Failed to allocate geometry buffer, attempting workaround with sparse buffers");
+                buffer.free();
+                buffer = new GlBuffer(geometryCapacity, GL_SPARSE_STORAGE_BIT_ARB);
+                glNamedBufferPageCommitmentARB(buffer.id, 0, geometryCapacity, true);
+                buffer.zero();
+                error = glGetError();
+                if (error != GL_NO_ERROR) {
+                    buffer.free();
+                    throw new IllegalStateException("Unable to allocate geometry buffer using workaround, got gl error " + error);
+                }
+            } else {
+                throw new IllegalStateException("Unable to allocate geometry buffer, got gl error " + error);
+            }
+        }
+        this.geometryBuffer = buffer;
         long delta = System.currentTimeMillis() - start;
         Logger.info("Successfully allocated and zeroed the geometry buffer in " + delta + "ms");
     }

src/main/resources/voxy.accesswidener

@@ -33,4 +33,6 @@ accessible class net/minecraft/client/world/ClientChunkManager$ClientChunkMap
 accessible method net/minecraft/client/world/ClientChunkManager$ClientChunkMap getChunk (I)Lnet/minecraft/world/chunk/WorldChunk;
 accessible method net/minecraft/client/world/ClientChunkManager$ClientChunkMap getIndex (II)I
 
-accessible field net/minecraft/client/texture/SpriteAtlasTexture mipLevel I
+accessible field net/minecraft/client/texture/SpriteAtlasTexture mipLevel I
+
+accessible method net/minecraft/client/texture/MipmapHelper blend (IIIIZ)I