From a13a00f2a28a2ea024dcc93eadd87ecf707f3ab4 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Wed, 4 Jun 2025 13:26:27 -0700
Subject: fix ssao

---
 yum_pbr.cginc | 58 +---------------------------------------------------------
 1 file changed, 1 insertion(+), 57 deletions(-)

(limited to 'yum_pbr.cginc')

diff --git a/yum_pbr.cginc b/yum_pbr.cginc
index 6fa12bb..c3f5c4a 100644
--- a/yum_pbr.cginc
+++ b/yum_pbr.cginc
@@ -1,7 +1,6 @@
 #ifndef __YUM_PBR
 #define __YUM_PBR
 
-#include "audiolink.cginc"
 #include "cnlohr.cginc"
 #include "decals.cginc"
 #include "features.cginc"
@@ -29,7 +28,7 @@ void propagateRoughness(in float smoothness, out float roughness_perceptual, out
   roughness = roughness_perceptual * roughness_perceptual;
 }
 
-YumPbr GetYumPbr(v2f i) {
+YumPbr GetYumPbr(v2f i, float3x3 tangentToWorld) {
   YumPbr result;
 
   float2 raw_uv = i.uv01.xy;
@@ -135,63 +134,8 @@ YumPbr GetYumPbr(v2f i) {
   applyDecals(i, result.albedo, normal_tangent, result.metallic, result.smoothness);
   propagateRoughness(result.smoothness, result.roughness_perceptual, result.roughness);
 
-  const float3x3 tangentToWorld = float3x3(i.tangent, i.binormal, i.normal);
   result.normal = normalize(mul(normal_tangent, tangentToWorld));
 
-#if defined(_SSAO)
-  {
-    const float fragment_depth = GetDepthOfWorldPos(i.worldPos);
-
-    float2 screen_uv;
-    float perspective_factor;
-    GetScreenUVAndPerspectiveFactor(i.worldPos, i.pos, screen_uv, perspective_factor);
-
-    const float2 screen_px = screen_uv * _ScreenParams.xy;
-    const float ssao_theta = _SSAO_Noise.SampleLevel(point_repeat_s, screen_px * _SSAO_Noise_TexelSize.xy, 0) * TAU;
-    const float2x2 ssao_rot = float2x2(
-        cos(ssao_theta), -sin(ssao_theta),
-        sin(ssao_theta),  cos(ssao_theta));
-
-    const float frame = ((float) AudioLinkData(ALPASS_GENERALVU + int2(1, 0)).x);
-
-    float ssao_occlusion = 0;
-    const float ssao_eps = 1E-5;
-    [loop]
-    for (uint ii = 0; ii < _SSAO_Samples; ii++) {
-      // Compute random vector in tangent space.
-      // Get the index of the current pixels, on the range [0, screen_width] x
-      // [0, screen_height].
-      // Map that onto the noise texture's pixels. Add an offset for each
-      // index.
-      float2 noise_uv = (float2(ii % _ScreenParams.x, ii * (_ScreenParams.z - 1.0f))) * _SSAO_Noise_TexelSize.xy;
-      float3 sample_point = _SSAO_Noise.SampleLevel(point_repeat_s, noise_uv, 0).rgb;
-      // Use a low discrepancy sequence to transform each sample over time.
-      //sample_point = frac(sample_point + PHI * frame);
-      sample_point.xy = 2.0 * sample_point.xy - 1.0;
-      sample_point.xy = mul(ssao_rot, sample_point.xy);
-
-      // Remap to world space.
-      sample_point = mul(sample_point, tangentToWorld);
-      float scale = (ii * 1.0f) / _SSAO_Samples;
-      sample_point *= lerp(0.1f, 1.0f, scale * scale) * _SSAO_Radius;
-
-      sample_point += i.worldPos;
-
-      float sample_depth = GetDepthOfWorldPos(sample_point);
-
-      // Depth values we're working with indicate how far you have to go along
-      // the view vector before you hit the object in question. Therefore, we
-      // care when the sample is *closer* to us than the object.
-      float occlusion_amount = saturate((fragment_depth - sample_depth) - _SSAO_Bias);
-
-      ssao_occlusion += occlusion_amount;
-    }
-
-    //result.albedo.xyz *= saturate(1.0 - _SSAO_Strength * ssao_occlusion / _SSAO_Samples);
-    result.albedo.xyz = saturate(1.0 - _SSAO_Strength * ssao_occlusion / _SSAO_Samples);
-  }
-#endif
-
 #if (defined(FORWARD_BASE_PASS) || defined(FORWARD_ADD_PASS)) && defined(_GLITTER)
   GlitterParams glitter_p;
   glitter_p.color = _Glitter_Color;
-- 
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