stuff

Author: emyfops

build.gradle.kts

@@ -54,10 +54,7 @@ subprojects {
 
     dependencies {
         "minecraft"("com.mojang:minecraft:$minecraftVersion")
-        "mappings"(loom.layered {
-            mappings("net.fabricmc:yarn:$minecraftVersion+$yarnMappings:v2")
-            mappings("dev.architectury:yarn-mappings-patch-neoforge:1.21+build.4")
-        })
+        "mappings"("net.fabricmc:yarn:$minecraftVersion+$yarnMappings:v2")
     }
 
     publishing {

common/src/main/java/com/lambda/mixin/render/VertexFormatMixin.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.mixin.render;
+
+import com.lambda.graphics.buffer.Buffer;
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import net.minecraft.client.gl.GlGpuBuffer;
+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 java.nio.ByteBuffer;
+
+@Mixin(VertexFormat.class)
+public class VertexFormatMixin {
+    @Inject(method = "uploadImmediateVertexBuffer(Ljava/nio/ByteBuffer;)Lcom/mojang/blaze3d/buffers/GpuBuffer;", at = @At("RETURN"))
+    void interceptIndexBufferConfiguration(ByteBuffer vertexBuffer, CallbackInfoReturnable<GpuBuffer> cir) {
+        GlGpuBuffer value = (GlGpuBuffer)cir.getReturnValue();
+        Buffer.lastIbo = value.id;
+    }
+}

common/src/main/kotlin/com/lambda/graphics/buffer/frame/FrameBuffer.kt

@@ -17,10 +17,12 @@
 
 package com.lambda.graphics.buffer.frame
 
+import com.lambda.Lambda.mc
 import com.lambda.graphics.buffer.vertex.attributes.VertexAttrib
 import com.lambda.graphics.buffer.vertex.attributes.VertexMode
 import com.lambda.graphics.pipeline.VertexPipeline
 import com.lambda.graphics.texture.TextureUtils
+import net.minecraft.client.texture.GlTexture
 import org.lwjgl.opengl.GL12C.GL_CLAMP_TO_EDGE
 import org.lwjgl.opengl.GL30C.GL_COLOR_ATTACHMENT0
 import org.lwjgl.opengl.GL30C.GL_COLOR_BUFFER_BIT
@@ -67,19 +69,18 @@ open class FrameBuffer(
     private var lastWidth = -1
     private var lastHeight = -1
 
-    @Deprecated(message = "Fix this code")
     open fun write(block: () -> Unit): FrameBuffer {
-        //val prev = lastFrameBuffer ?: mc.framebuffer.fbo
+        val prev = lastFrameBuffer ?: (mc.framebuffer.colorAttachment as GlTexture).glId
 
         glBindFramebuffer(GL_FRAMEBUFFER, fbo)
-        //lastFrameBuffer = fbo
+        lastFrameBuffer = fbo
 
         update()
 
         block()
 
-        //lastFrameBuffer = prev
-        glBindFramebuffer(GL_FRAMEBUFFER, 0)
+        lastFrameBuffer = prev
+        glBindFramebuffer(GL_FRAMEBUFFER, prev)
         return this
     }
 

common/src/main/resources/lambda.accesswidener

@@ -42,6 +42,9 @@ accessible method net/minecraft/client/render/Camera setRotation (FF)V
 # Renderer
 accessible field net/minecraft/client/texture/NativeImage pointer J
 accessible class net/minecraft/client/gui/screen/SplashOverlay$LogoTexture
+accessible field com/mojang/blaze3d/systems/RenderSystem$ShapeIndexBuffer indexBuffer Lcom/mojang/blaze3d/buffers/GpuBuffer;
+accessible field net/minecraft/client/gl/GlGpuBuffer id I
+
 
 # Text
 accessible field net/minecraft/text/Style color Lnet/minecraft/text/TextColor;

common/src/main/resources/lambda.mixins.common.json

@@ -49,6 +49,7 @@
     "render.SplashOverlayMixin",
     "render.SplashOverlayMixin$LogoTextureMixin",
     "render.TooltipComponentMixin",
+    "render.VertexFormatMixin",
     "render.WorldRendererMixin",
     "world.BlockCollisionSpliteratorMixin",
     "world.ClientChunkManagerMixin",