ask amo why it isn't finding the targets

Common/src/main/java/at/petrak/hexcasting/client/render/overlays/EigengrauOverlay.java

@@ -2,6 +2,7 @@ package at.petrak.hexcasting.client.render.overlays;
 
 import at.petrak.hexcasting.client.render.shader.HexShaders;
 import at.petrak.hexcasting.mixin.accessor.client.AccessorGameRenderer;
+import at.petrak.hexcasting.mixin.accessor.client.AccessorPostChain;
 import com.mojang.blaze3d.pipeline.TextureTarget;
 import com.mojang.blaze3d.systems.RenderSystem;
 import com.mojang.blaze3d.vertex.DefaultVertexFormat;
@@ -11,8 +12,6 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import org.joml.Matrix4f;
 
-import static at.petrak.hexcasting.api.HexAPI.modLoc;
-
 /**
  * How eigengrau works
  * - EIGENGRAU_BZ_SIMULATION stores the state of the BZ cellular automata (thanks Acerola). It's updated on the GPU
@@ -23,8 +22,6 @@ import static at.petrak.hexcasting.api.HexAPI.modLoc;
 public class EigengrauOverlay {
     public static TextureTarget EIGENGRAU_BZ_SIMULATION;
     public static TextureTarget EIGENGRAU_VEIL;
-    public static final ResourceLocation SPECIAL_BZ_SIM_ID = modLoc("eigengrau/simulation");
-    public static final ResourceLocation SPECIAL_BZ_VEIL_ID = modLoc("eigengrau/veil");
     /**
      * "Radius" of a hex cell in pixels
      */
@@ -34,8 +31,21 @@ public class EigengrauOverlay {
         // Post-processing
         if (Minecraft.getInstance().gameRenderer.currentEffect() == null) {
             var mogrwbjah = (AccessorGameRenderer) Minecraft.getInstance().gameRenderer;
+
             mogrwbjah.hex$loadEffect(new ResourceLocation(
                 "shaders/post/hexcasting__eigengrau_presenter_entrypoint.json"));
+            var post = mogrwbjah.hex$postEffect();
+            var passes = ((AccessorPostChain) post).hex$getPasses();
+
+            var window = Minecraft.getInstance().getWindow();
+            int w = window.getWidth();
+            int h = window.getHeight();
+
+            var passPresent = passes.get(0);
+            passPresent.getEffect().setSampler("simulation",
+                () -> EIGENGRAU_BZ_SIMULATION.getColorTextureId());
+            passPresent.getEffect().setSampler("veil",
+                () -> EIGENGRAU_VEIL.getColorTextureId());
         }
 
         var window = Minecraft.getInstance().getWindow();

Common/src/main/java/at/petrak/hexcasting/mixin/accessor/client/AccessorPostChain.java

@@ -0,0 +1,14 @@
+package at.petrak.hexcasting.mixin.accessor.client;
+
+import net.minecraft.client.renderer.PostChain;
+import net.minecraft.client.renderer.PostPass;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.List;
+
+@Mixin(PostChain.class)
+public interface AccessorPostChain {
+    @Accessor("passes")
+    List<PostPass> hex$getPasses();
+}

Common/src/main/java/at/petrak/hexcasting/mixin/client/MixinPostChain.java

@@ -1,21 +0,0 @@
-package at.petrak.hexcasting.mixin.client;
-
-import at.petrak.hexcasting.client.render.overlays.EigengrauOverlay;
-import com.mojang.blaze3d.pipeline.RenderTarget;
-import net.minecraft.client.renderer.PostChain;
-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;
-
-@Mixin(PostChain.class)
-public class MixinPostChain {
-    @Inject(method = "getRenderTarget", at = @At("RETURN"), cancellable = true)
-    void hex$useOurTargets(String target, CallbackInfoReturnable<RenderTarget> cir) {
-        if (EigengrauOverlay.SPECIAL_BZ_SIM_ID.toString().equals(target)) {
-            cir.setReturnValue(EigengrauOverlay.EIGENGRAU_BZ_SIMULATION);
-        } else if (EigengrauOverlay.SPECIAL_BZ_VEIL_ID.toString().equals(target)) {
-            cir.setReturnValue(EigengrauOverlay.EIGENGRAU_VEIL);
-        }
-    }
-}

Common/src/main/resources/assets/minecraft/shaders/post/hexcasting__eigengrau_presenter_entrypoint.json5

@@ -2,24 +2,22 @@
 {
   targets: [
     "swap",
-    "hexcasting:eigengrau/simulation",
+    "simulation",
-    "hexcasting:eigengrau/veil"
+    "veil"
   ],
   passes: [
     {
-      // Due to 1984, we can't have this in the hexcasting namespace.
-      // This is minecraft:shaders/program/hexcasting__eigengray_presenter.json, which loads the .fsh
       name: "hexcasting__eigengrau_presenter",
       intarget: "minecraft:main",
       outtarget: "swap",
       auxtargets: [
         {
           name: "bz",
-          id: "hexcasting:eigengrau/simulation",
+          id: "simulation",
         },
         {
           name: "veil",
-          id: "hexcasting:eigengrau/veil",
+          id: "veil",
         }
       ],
     },

Common/src/main/resources/assets/minecraft/shaders/program/hexcasting__eigengrau_presenter.fsh

@@ -10,7 +10,6 @@ uniform vec2 ScreenSize;
 const float resolution = 5.0;
 
 in vec2 texCoord0;
-out vec4 fragColor;
 
 ivec2 pxToHex(vec2 px) {
     float sqrt3 = sqrt(3.0);

Common/src/main/resources/hexplat.mixins.json

@@ -25,10 +25,10 @@
     "accessor.client.AccessorEmptyTextureStateShard",
     "accessor.client.AccessorGameRenderer",
     "accessor.client.AccessorMouseHandler",
+    "accessor.client.AccessorPostChain",
     "accessor.client.AccessorRenderStateShard",
     "accessor.client.AccessorRenderType",
     "client.MixinClientLevel",
-    "client.MixinPlayerRenderer",
+    "client.MixinPlayerRenderer"
-    "client.MixinPostChain"
   ]
 }