Art: EmissiveGloam DOTS instancing + revive EnemyRigTools + drop dead materials (audit M7/M8)

M8 — ProjectM/EmissiveGloam had no DOTS instancing but is bound to
M_Drowner_EyeGlow on EnemyDrowner.prefab, a baked GHOST prefab that
Entities Graphics renders through BatchRendererGroup. Its skinned sibling
has carried the pragmas since 07-16; this one was simply missed, and murk
hides the symptom (CLAUDE.md: "a dark-lit screenshot MASKS material
bugs"). Added #pragma target 4.5 + multi_compile DOTS_INSTANCING_ON +
UNITY_SETUP_INSTANCE_ID, and a DepthOnly pass so the glows stop being
absent from the URP depth texture (soft particles / SSAO / DoF punch
straight through them otherwise). Verified: shader compiles, isSupported,
2 passes, 0 messages.

M7 — EnemyRigTools was dead at EVERY entry point. All eight hard-coded
prefab paths were deleted by DR-051, and the template check ran BEFORE
the idempotent in-place branch, so even re-running a builder on an
existing prefab failed. The three shipping skinned creatures were
unreproducible. Now the template only matters when there is no output to
edit in place, and a new creature templates off the shipping EnemyDrowner
ghost (GhostTemplate) instead of the deleted Enemy.prefab. Retired the
four menu items that drove the deleted Werewolf/Kaiju/Charger bestiary
rather than leave them advertising entry points that cannot work.

Deleted 19 materials with zero references from any scene, prefab,
ScriptableObject, script or settings asset — verified three ways, not
from the audit's list. Kept everything with a live reference, including
several the audit's asset-only scan called dead but which code loads by
path (M_Skinned_Palette, PixelOutline, M_Env_Fallback).

NOT fixed here, deliberately: MakeMat still points each creature at a
per-PACK Synty atlas rather than the shared palette. That is a visual
decision about the shipping Drowner/Grindylow, not a mechanical fix — the
doc-vs-reality gap gets reconciled in Art_Direction_Lantern instead.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Assets/_Project/Shaders/EmissiveGloam.shader

@@ -20,11 +20,23 @@ Shader "ProjectM/EmissiveGloam"
             Name "EmissiveGloamUnlit"
             Tags { "LightMode"="UniversalForward" }
             HLSLPROGRAM
+            // DOTS instancing (2026-08-06 audit, finding M8): this shader is bound to M_Drowner_EyeGlow on
+            // EnemyDrowner.prefab — a baked GHOST prefab, so Entities Graphics renders it through
+            // BatchRendererGroup, which feeds per-instance transforms via DOTS instancing. Without these three
+            // lines the eyes do not get correct instance data. Its skinned sibling
+            // (EmissiveGloamSkinned.shader) has carried them since 07-16; this one was simply missed, and a murk
+            // scene hides the symptom (CLAUDE.md: "a dark-lit screenshot MASKS material bugs").
+            #pragma target 4.5
             #pragma vertex vert
             #pragma fragment frag
+            #pragma multi_compile _ DOTS_INSTANCING_ON
             #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
 
-            struct Attributes { float4 positionOS : POSITION; };
+            struct Attributes
+            {
+                float4 positionOS : POSITION;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
             struct Varyings   { float4 positionHCS : SV_POSITION; };
 
             CBUFFER_START(UnityPerMaterial)
@@ -36,6 +48,7 @@ Shader "ProjectM/EmissiveGloam"
 
             Varyings vert (Attributes IN)
             {
+                UNITY_SETUP_INSTANCE_ID(IN);
                 Varyings OUT;
                 OUT.positionHCS = TransformObjectToHClip(IN.positionOS.xyz);
                 return OUT;
@@ -52,6 +65,42 @@ Shader "ProjectM/EmissiveGloam"
             }
             ENDHLSL
         }
+
+        // DepthOnly (2026-08-06 audit, finding L-shader): without it these glows are absent from URP's depth
+        // texture, so soft particles (marine snow), SSAO and depth-of-field punch straight through them. Costs
+        // nothing today with two materials; would be a visible bug the moment Emissive-Gloam becomes "every glow
+        // in the game", which is the A2 variant plan.
+        Pass
+        {
+            Name "DepthOnly"
+            Tags { "LightMode"="DepthOnly" }
+            ZWrite On
+            ColorMask R
+            HLSLPROGRAM
+            #pragma target 4.5
+            #pragma vertex depthVert
+            #pragma fragment depthFrag
+            #pragma multi_compile _ DOTS_INSTANCING_ON
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+            struct DepthAttributes
+            {
+                float4 positionOS : POSITION;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+            struct DepthVaryings { float4 positionHCS : SV_POSITION; };
+
+            DepthVaryings depthVert (DepthAttributes IN)
+            {
+                UNITY_SETUP_INSTANCE_ID(IN);
+                DepthVaryings OUT;
+                OUT.positionHCS = TransformObjectToHClip(IN.positionOS.xyz);
+                return OUT;
+            }
+
+            half depthFrag (DepthVaryings IN) : SV_Target { return 0; }
+            ENDHLSL
+        }
     }
     Fallback Off
 }