From 81637c1a3fab4f92e6da7517dd118d5bb4526865 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Tue, 24 Mar 2026 17:23:40 -0700
Subject: Encapsulate ssfd and letter grid inside pbr.cginc

---
 pbr.cginc | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

(limited to 'pbr.cginc')

diff --git a/pbr.cginc b/pbr.cginc
index 47ef00c..f81f95e 100755
--- a/pbr.cginc
+++ b/pbr.cginc
@@ -1,11 +1,13 @@
 #ifndef __PBR_INC
 #define __PBR_INC
 
-#include "filamented.cginc"
 #include "data.cginc"
 #include "decal.cginc"
+#include "filamented.cginc"
 #include "instancing.cginc"
 #include "interpolators.cginc"
+#include "letter_grid.cginc"
+#include "ssfd.cginc"
 #include "texture_utils.cginc"
 
 #if defined(_PARALLAX_HEIGHTMAP)
@@ -168,6 +170,27 @@ void apply_kintsugi(float3 world_pos, inout float3 albedo, inout float smoothnes
 #endif  // _KINTSUGI
 }
 
+void apply_letter_grid(v2f i, inout Pbr pbr) {
+#if defined(_LETTER_GRID)
+  LetterGridOutput lg = LetterGrid(i);
+  pbr.albedo.rgb = lerp(pbr.albedo.rgb, lg.albedo, lg.albedo.a);
+  pbr.metallic = lerp(pbr.metallic, lg.metallic, lg.albedo.a);
+  pbr.roughness = lerp(pbr.roughness, lg.roughness, lg.albedo.a);
+#if defined(FORWARD_BASE_PASS)
+  pbr.emission += lg.emission * lg.albedo.a;
+#endif
+#endif
+}
+
+void apply_ssfd(float2 uv, inout float3 albedo) {
+#if defined(_SSFD)
+  float ssfd_mask = ssfd(uv, _SSFD_Scale, _SSFD_Max_Fwidth, 0, _SSFD_Noise);
+  float ssfd_mask_fw = fwidth(ssfd_mask);
+  ssfd_mask = smoothstep(_SSFD_Threshold - ssfd_mask_fw * 0.5, _SSFD_Threshold + ssfd_mask_fw * 0.5, ssfd_mask);
+  albedo += ssfd_mask * _SSFD_Tint.rgb;
+#endif
+}
+
 Pbr getPbr(v2f i) {
   Pbr pbr = (Pbr) 0;
 
@@ -213,6 +236,8 @@ Pbr getPbr(v2f i) {
 
   apply_marble(i.worldPos, pbr.albedo.xyz);
   apply_kintsugi(i.worldPos, pbr.albedo.xyz, pbr.smoothness, pbr.metallic);
+  apply_ssfd(i.uv01.xy, pbr.albedo.xyz);
+  apply_letter_grid(i, pbr);
 
   applyDecals(i, pbr, normal_tangent);
 
-- 
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