shapes would render much better without shaders

src/main/java/carpet/mixins/WorldRenderer_scarpetRenderMixin.java

@@ -5,6 +5,7 @@ import carpet.script.utils.ShapesRenderer;
 import carpet.utils.FabricAPIHooks;
 import com.mojang.blaze3d.systems.RenderSystem;
 import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gl.ShaderEffect;
 import net.minecraft.client.render.BufferBuilderStorage;
 import net.minecraft.client.render.Camera;
 import net.minecraft.client.render.GameRenderer;
@@ -13,6 +14,7 @@ import net.minecraft.client.render.WorldRenderer;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.util.math.Matrix4f;
 import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
@@ -20,16 +22,39 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 @Mixin(WorldRenderer.class)
 public class WorldRenderer_scarpetRenderMixin
 {
+    @Shadow private /*@Nullable*/ ShaderEffect transparencyShader;
+
     @Inject(method = "<init>", at = @At("RETURN"))
     private void addRenderers(MinecraftClient client, BufferBuilderStorage bufferBuilders, CallbackInfo ci)
     {
         CarpetClient.shapes = new ShapesRenderer(client);
     }
 
-    @Inject(method = "render", at =  @At(value = "INVOKE", target = "Lnet/minecraft/client/render/debug/DebugRenderer;render(Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider$Immediate;DDD)V"))
+    @Inject(method = "render", at =  @At(
+            value = "INVOKE",
+            target = "Lnet/minecraft/client/render/WorldRenderer;renderChunkDebugInfo(Lnet/minecraft/client/render/Camera;)V",
+            shift = At.Shift.AFTER
+    ))
     private void renderScarpetThings(MatrixStack matrices, float tickDelta, long limitTime, boolean renderBlockOutline, Camera camera, GameRenderer gameRenderer, LightmapTextureManager lightmapTextureManager, Matrix4f matrix4f, CallbackInfo ci)
     {
-        if (!FabricAPIHooks.WORLD_RENDER_EVENTS && CarpetClient.shapes != null)
+        // in normal circumstances we want to render shapes at the very end so it appears correctly behind stuff.
+        if (!FabricAPIHooks.WORLD_RENDER_EVENTS && CarpetClient.shapes != null && transparencyShader == null)
+        {
+            RenderSystem.pushMatrix();
+            CarpetClient.shapes.render(camera, tickDelta);
+            RenderSystem.popMatrix();
+        }
+    }
+
+    @Inject(method = "render", at =  @At(
+            value = "INVOKE",
+            target = "Lnet/minecraft/client/render/debug/DebugRenderer;render(Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider$Immediate;DDD)V",
+            shift = At.Shift.AFTER
+    ))
+    private void renderScarpetThingsFabulously(MatrixStack matrices, float tickDelta, long limitTime, boolean renderBlockOutline, Camera camera, GameRenderer gameRenderer, LightmapTextureManager lightmapTextureManager, Matrix4f matrix4f, CallbackInfo ci)
+    {
+        // with fabulous graphics - stuff doesn't work this way for some reason - need to render with chunk lines.
+        if (!FabricAPIHooks.WORLD_RENDER_EVENTS && CarpetClient.shapes != null && transparencyShader != null)
         {
             RenderSystem.pushMatrix();
             CarpetClient.shapes.render(camera, tickDelta);