From 8489b8466093a2bcd5042762381d5f338262d039 Mon Sep 17 00:00:00 2001
From: katajisto <t@ktj.st>
Date: Thu, 23 Oct 2025 17:01:04 +0300
Subject: [PATCH] fix ssao for mac

---
 src/shaders/jai/shader_op.jai   | 71 +++++++++++------------
 src/shaders/jai/shader_ssao.jai | 99 +++++++++++++++++----------------
 src/shaders/shader_ssao.glsl    |  4 ++
 3 files changed, 87 insertions(+), 87 deletions(-)

diff --git a/src/shaders/jai/shader_op.jai b/src/shaders/jai/shader_op.jai
index e35fa4a..160c782 100644
--- a/src/shaders/jai/shader_op.jai
+++ b/src/shaders/jai/shader_op.jai
@@ -71,14 +71,14 @@ vs_op_source_glsl430 := u8.[
     {
         vec2 _28 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
         float result = 0.0;
-        for (int x = -3; x < 3; x++)
+        for (int x = -2; x < 2; x++)
         {
-            for (int y = -3; y < 3; y++)
+            for (int y = -2; y < 2; y++)
             {
                 result += texture(optex_opsmp, texcoord + (vec2(float(x), float(y)) * _28)).x;
             }
         }
-        float _84 = result * 0.02777777798473834991455078125;
+        float _84 = result * 0.0625;
         frag_color = vec4(_84, _84, _84, 1.0);
     }
 
@@ -100,10 +100,10 @@ fs_op_source_glsl430 := u8.[
     0x70,0x74,0x65,0x78,0x5f,0x6f,0x70,0x73,0x6d,0x70,0x2c,0x20,0x30,0x29,0x29,0x3b,
     0x0a,0x20,0x20,0x20,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x72,0x65,0x73,0x75,0x6c,
     0x74,0x20,0x3d,0x20,0x30,0x2e,0x30,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,0x6f,0x72,
-    0x20,0x28,0x69,0x6e,0x74,0x20,0x78,0x20,0x3d,0x20,0x2d,0x33,0x3b,0x20,0x78,0x20,
-    0x3c,0x20,0x33,0x3b,0x20,0x78,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x7b,0x0a,
+    0x20,0x28,0x69,0x6e,0x74,0x20,0x78,0x20,0x3d,0x20,0x2d,0x32,0x3b,0x20,0x78,0x20,
+    0x3c,0x20,0x32,0x3b,0x20,0x78,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x7b,0x0a,
     0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x66,0x6f,0x72,0x20,0x28,0x69,0x6e,0x74,
-    0x20,0x79,0x20,0x3d,0x20,0x2d,0x33,0x3b,0x20,0x79,0x20,0x3c,0x20,0x33,0x3b,0x20,
+    0x20,0x79,0x20,0x3d,0x20,0x2d,0x32,0x3b,0x20,0x79,0x20,0x3c,0x20,0x32,0x3b,0x20,
     0x79,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x7b,0x0a,0x20,
     0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x72,0x65,0x73,0x75,0x6c,
     0x74,0x20,0x2b,0x3d,0x20,0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x28,0x6f,0x70,0x74,
@@ -113,12 +113,10 @@ fs_op_source_glsl430 := u8.[
     0x20,0x5f,0x32,0x38,0x29,0x29,0x2e,0x78,0x3b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,
     0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,0x20,0x66,0x6c,
     0x6f,0x61,0x74,0x20,0x5f,0x38,0x34,0x20,0x3d,0x20,0x72,0x65,0x73,0x75,0x6c,0x74,
-    0x20,0x2a,0x20,0x30,0x2e,0x30,0x32,0x37,0x37,0x37,0x37,0x37,0x37,0x37,0x39,0x38,
-    0x34,0x37,0x33,0x38,0x33,0x34,0x39,0x39,0x31,0x34,0x35,0x35,0x30,0x37,0x38,0x31,
-    0x32,0x35,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,
-    0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x5f,0x38,0x34,0x2c,0x20,0x5f,
-    0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x7d,
-    0x0a,0x0a,0x00,
+    0x20,0x2a,0x20,0x30,0x2e,0x30,0x36,0x32,0x35,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,
+    0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,
+    0x28,0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,
+    0x31,0x2e,0x30,0x29,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
 ];
 /*
     #version 300 es
@@ -162,14 +160,14 @@ vs_op_source_glsl300es := u8.[
     {
         highp vec2 _28 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
         highp float result = 0.0;
-        for (int x = -3; x < 3; x++)
+        for (int x = -2; x < 2; x++)
         {
-            for (int y = -3; y < 3; y++)
+            for (int y = -2; y < 2; y++)
             {
                 result += texture(optex_opsmp, texcoord + (vec2(float(x), float(y)) * _28)).x;
             }
         }
-        highp float _84 = result * 0.02777777798473834991455078125;
+        highp float _84 = result * 0.0625;
         frag_color = vec4(_84, _84, _84, 1.0);
     }
 
@@ -194,10 +192,10 @@ fs_op_source_glsl300es := u8.[
     0x20,0x20,0x20,0x20,0x68,0x69,0x67,0x68,0x70,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,
     0x72,0x65,0x73,0x75,0x6c,0x74,0x20,0x3d,0x20,0x30,0x2e,0x30,0x3b,0x0a,0x20,0x20,
     0x20,0x20,0x66,0x6f,0x72,0x20,0x28,0x69,0x6e,0x74,0x20,0x78,0x20,0x3d,0x20,0x2d,
-    0x33,0x3b,0x20,0x78,0x20,0x3c,0x20,0x33,0x3b,0x20,0x78,0x2b,0x2b,0x29,0x0a,0x20,
+    0x32,0x3b,0x20,0x78,0x20,0x3c,0x20,0x32,0x3b,0x20,0x78,0x2b,0x2b,0x29,0x0a,0x20,
     0x20,0x20,0x20,0x7b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x66,0x6f,0x72,
-    0x20,0x28,0x69,0x6e,0x74,0x20,0x79,0x20,0x3d,0x20,0x2d,0x33,0x3b,0x20,0x79,0x20,
-    0x3c,0x20,0x33,0x3b,0x20,0x79,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,
+    0x20,0x28,0x69,0x6e,0x74,0x20,0x79,0x20,0x3d,0x20,0x2d,0x32,0x3b,0x20,0x79,0x20,
+    0x3c,0x20,0x32,0x3b,0x20,0x79,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,
     0x20,0x20,0x7b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
     0x72,0x65,0x73,0x75,0x6c,0x74,0x20,0x2b,0x3d,0x20,0x74,0x65,0x78,0x74,0x75,0x72,
     0x65,0x28,0x6f,0x70,0x74,0x65,0x78,0x5f,0x6f,0x70,0x73,0x6d,0x70,0x2c,0x20,0x74,
@@ -207,11 +205,10 @@ fs_op_source_glsl300es := u8.[
     0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,
     0x20,0x20,0x20,0x68,0x69,0x67,0x68,0x70,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x5f,
     0x38,0x34,0x20,0x3d,0x20,0x72,0x65,0x73,0x75,0x6c,0x74,0x20,0x2a,0x20,0x30,0x2e,
-    0x30,0x32,0x37,0x37,0x37,0x37,0x37,0x37,0x37,0x39,0x38,0x34,0x37,0x33,0x38,0x33,
-    0x34,0x39,0x39,0x31,0x34,0x35,0x35,0x30,0x37,0x38,0x31,0x32,0x35,0x3b,0x0a,0x20,
-    0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,
-    0x76,0x65,0x63,0x34,0x28,0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x5f,
-    0x38,0x34,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+    0x30,0x36,0x32,0x35,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,
+    0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x5f,0x38,0x34,0x2c,
+    0x20,0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,
+    0x0a,0x7d,0x0a,0x0a,0x00,
 ];
 /*
     #include <metal_stdlib>
@@ -291,14 +288,14 @@ vs_op_source_metal_macos := u8.[
         main0_out out = {};
         float2 _28 = float2(1.0) / float2(int2(optex.get_width(), optex.get_height()));
         float result = 0.0;
-        for (int x = -3; x < 3; x++)
+        for (int x = -2; x < 2; x++)
         {
-            for (int y = -3; y < 3; y++)
+            for (int y = -2; y < 2; y++)
             {
                 result += optex.sample(opsmp, (in.texcoord + (float2(float(x), float(y)) * _28))).x;
             }
         }
-        float _84 = result * 0.02777777798473834991455078125;
+        float _84 = result * 0.0625;
         out.frag_color = float4(_84, _84, _84, 1.0);
         return out;
     }
@@ -333,11 +330,11 @@ fs_op_source_metal_macos := u8.[
     0x74,0x65,0x78,0x2e,0x67,0x65,0x74,0x5f,0x68,0x65,0x69,0x67,0x68,0x74,0x28,0x29,
     0x29,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x72,0x65,
     0x73,0x75,0x6c,0x74,0x20,0x3d,0x20,0x30,0x2e,0x30,0x3b,0x0a,0x20,0x20,0x20,0x20,
-    0x66,0x6f,0x72,0x20,0x28,0x69,0x6e,0x74,0x20,0x78,0x20,0x3d,0x20,0x2d,0x33,0x3b,
-    0x20,0x78,0x20,0x3c,0x20,0x33,0x3b,0x20,0x78,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,
+    0x66,0x6f,0x72,0x20,0x28,0x69,0x6e,0x74,0x20,0x78,0x20,0x3d,0x20,0x2d,0x32,0x3b,
+    0x20,0x78,0x20,0x3c,0x20,0x32,0x3b,0x20,0x78,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,
     0x20,0x7b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x66,0x6f,0x72,0x20,0x28,
-    0x69,0x6e,0x74,0x20,0x79,0x20,0x3d,0x20,0x2d,0x33,0x3b,0x20,0x79,0x20,0x3c,0x20,
-    0x33,0x3b,0x20,0x79,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
+    0x69,0x6e,0x74,0x20,0x79,0x20,0x3d,0x20,0x2d,0x32,0x3b,0x20,0x79,0x20,0x3c,0x20,
+    0x32,0x3b,0x20,0x79,0x2b,0x2b,0x29,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
     0x7b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x72,0x65,
     0x73,0x75,0x6c,0x74,0x20,0x2b,0x3d,0x20,0x6f,0x70,0x74,0x65,0x78,0x2e,0x73,0x61,
     0x6d,0x70,0x6c,0x65,0x28,0x6f,0x70,0x73,0x6d,0x70,0x2c,0x20,0x28,0x69,0x6e,0x2e,
@@ -346,14 +343,12 @@ fs_op_source_metal_macos := u8.[
     0x61,0x74,0x28,0x79,0x29,0x29,0x20,0x2a,0x20,0x5f,0x32,0x38,0x29,0x29,0x29,0x2e,
     0x78,0x3b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,
     0x20,0x7d,0x0a,0x20,0x20,0x20,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x5f,0x38,0x34,
-    0x20,0x3d,0x20,0x72,0x65,0x73,0x75,0x6c,0x74,0x20,0x2a,0x20,0x30,0x2e,0x30,0x32,
-    0x37,0x37,0x37,0x37,0x37,0x37,0x37,0x39,0x38,0x34,0x37,0x33,0x38,0x33,0x34,0x39,
-    0x39,0x31,0x34,0x35,0x35,0x30,0x37,0x38,0x31,0x32,0x35,0x3b,0x0a,0x20,0x20,0x20,
-    0x20,0x6f,0x75,0x74,0x2e,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,
-    0x3d,0x20,0x66,0x6c,0x6f,0x61,0x74,0x34,0x28,0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,
-    0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,
-    0x20,0x20,0x72,0x65,0x74,0x75,0x72,0x6e,0x20,0x6f,0x75,0x74,0x3b,0x0a,0x7d,0x0a,
-    0x0a,0x00,
+    0x20,0x3d,0x20,0x72,0x65,0x73,0x75,0x6c,0x74,0x20,0x2a,0x20,0x30,0x2e,0x30,0x36,
+    0x32,0x35,0x3b,0x0a,0x20,0x20,0x20,0x20,0x6f,0x75,0x74,0x2e,0x66,0x72,0x61,0x67,
+    0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x66,0x6c,0x6f,0x61,0x74,0x34,0x28,
+    0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x5f,0x38,0x34,0x2c,0x20,0x31,
+    0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x72,0x65,0x74,0x75,0x72,0x6e,0x20,
+    0x6f,0x75,0x74,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
 ];
 op_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
     desc: sg_shader_desc;
diff --git a/src/shaders/jai/shader_ssao.jai b/src/shaders/jai/shader_ssao.jai
index 16d9968..4b3b9c0 100644
--- a/src/shaders/jai/shader_ssao.jai
+++ b/src/shaders/jai/shader_ssao.jai
@@ -476,7 +476,7 @@ vs_ssao_source_metal_macos := u8.[
         float ssao_power;
     };
 
-    constant float4 _220 = {};
+    constant float4 _227 = {};
 
     struct main0_out
     {
@@ -502,24 +502,24 @@ vs_ssao_source_metal_macos := u8.[
             float3 _121 = _26 + ((_85 * _109.samples[i].xyz) * 0.5);
             float4 _133 = _109.projection * float4(_121, 1.0);
             float3 _140 = _133.xyz / float3(_133.w);
-            float4 _204;
-            _204.x = _140.x;
-            _204.y = _140.y;
-            float3 _154 = (_204.xyz * 0.5) + float3(0.5);
-            float4 _210;
-            _210.x = _154.x;
-            _210.y = _154.y;
-            float4 _167 = g_position.sample(ssao_smp, _210.xy);
-            if (length(_167.xyz) > 0.00999999977648258209228515625)
+            float4 _208;
+            _208.x = _140.x;
+            _208.y = _140.y;
+            float3 _154 = (_208.xyz * 0.5) + float3(0.5);
+            float4 _214;
+            _214.x = _154.x;
+            _214.y = 1.0 - _154.y;
+            float4 _171 = g_position.sample(ssao_smp, _214.xy);
+            if (length(_171.xyz) > 0.00999999977648258209228515625)
             {
-                occlusion += float(_167.z >= _121.z);
+                occlusion += float(_171.z >= _121.z);
             }
         }
-        float _185 = occlusion;
-        float _188 = 1.0 - (_185 * 0.015625);
-        occlusion = _188;
-        float _196 = powr(_188, _109.ssao_power);
-        out.out_color = float4(_196, _196, _196, 1.0);
+        float _189 = occlusion;
+        float _192 = 1.0 - (_189 * 0.015625);
+        occlusion = _192;
+        float _200 = powr(_192, _109.ssao_power);
+        out.out_color = float4(_200, _200, _200, 1.0);
         return out;
     }
 
@@ -536,7 +536,7 @@ fs_ssao_source_metal_macos := u8.[
     0x61,0x74,0x34,0x20,0x73,0x61,0x6d,0x70,0x6c,0x65,0x73,0x5b,0x36,0x34,0x5d,0x3b,
     0x0a,0x20,0x20,0x20,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x73,0x73,0x61,0x6f,0x5f,
     0x70,0x6f,0x77,0x65,0x72,0x3b,0x0a,0x7d,0x3b,0x0a,0x0a,0x63,0x6f,0x6e,0x73,0x74,
-    0x61,0x6e,0x74,0x20,0x66,0x6c,0x6f,0x61,0x74,0x34,0x20,0x5f,0x32,0x32,0x30,0x20,
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@@ -601,43 +601,44 @@ fs_ssao_source_metal_macos := u8.[
     0x30,0x20,0x3d,0x20,0x5f,0x31,0x33,0x33,0x2e,0x78,0x79,0x7a,0x20,0x2f,0x20,0x66,
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+    0x61,0x6f,0x5f,0x70,0x6f,0x77,0x65,0x72,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x6f,
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+    0x20,0x20,0x72,0x65,0x74,0x75,0x72,0x6e,0x20,0x6f,0x75,0x74,0x3b,0x0a,0x7d,0x0a,
+    0x0a,0x00,
 ];
 ssao_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
     desc: sg_shader_desc;
diff --git a/src/shaders/shader_ssao.glsl b/src/shaders/shader_ssao.glsl
index 7a3c4d4..94e252d 100644
--- a/src/shaders/shader_ssao.glsl
+++ b/src/shaders/shader_ssao.glsl
@@ -47,6 +47,10 @@ void main() {
         offset.xyz /= offset.w;
         offset.xyz = offset.xyz * 0.5 + 0.5;
 
+        #if !SOKOL_GLSL
+            offset.y = 1.0 - offset.y;
+        #endif
+
         vec3 psample = texture(sampler2D(g_position, ssao_smp), offset.xy).xyz;
         if (length(psample) > 0.01) {
             occlusion += (psample.z >= sample_pos.z ? 1.0 : 0.0);