From 2dfd6322587eb095a5a4f7b22d70e1abcc14d5e3 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Mon, 31 Mar 2025 21:50:39 -0700
Subject: Overhaul wrapped lighting

Now:
* k=0   -> lambertian
* k=0.5 -> half lambertian
* k=1.0 -> flat

All three points should be energy conserving, but I haven't done the
actual analysis yet.
---
 yum_lighting.cginc | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'yum_lighting.cginc')

diff --git a/yum_lighting.cginc b/yum_lighting.cginc
index 5e627d5..3af5654 100644
--- a/yum_lighting.cginc
+++ b/yum_lighting.cginc
@@ -202,11 +202,7 @@ YumLighting GetYumLighting(v2f i, YumPbr pbr) {
   // normalize has no visibile impact in test scene
   light.view_dir = -i.eyeVec.xyz;
 
-#if defined(POINT) || defined(POINT_COOKIE) || defined(SPOT)
-	light.dir = normalize((_WorldSpaceLightPos0 - i.worldPos).xyz);
-#else
-	light.dir = _WorldSpaceLightPos0;
-#endif
+  light.dir = getDirectLightDirection(i);
 
 	light.direct = _LightColor0.rgb;
 	// TODO filament's spherical harmonics look nicer than this.
-- 
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