From f454eba3c3243b095f0e6b9ddde3e68b095c5d8d Mon Sep 17 00:00:00 2001
From: Jaklyy <102590697+Jaklyy@users.noreply.github.com>
Date: Sat, 12 Aug 2023 23:38:26 -0400
Subject: check lower pixel when top pixel ignores fog (#1808)

---
 src/GPU3D_Soft.cpp | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)

(limited to 'src')

diff --git a/src/GPU3D_Soft.cpp b/src/GPU3D_Soft.cpp
index 0f8c602..6975eb4 100644
--- a/src/GPU3D_Soft.cpp
+++ b/src/GPU3D_Soft.cpp
@@ -1423,26 +1423,27 @@ void SoftRenderer::ScanlineFinalPass(s32 y)
             u32 density, srccolor, srcR, srcG, srcB, srcA;
 
             u32 attr = AttrBuffer[pixeladdr];
-            if (!(attr & (1<<15))) continue;
-
-            density = CalculateFogDensity(pixeladdr);
+            if (attr & (1<<15))
+            {
+                density = CalculateFogDensity(pixeladdr);
 
-            srccolor = ColorBuffer[pixeladdr];
-            srcR = srccolor & 0x3F;
-            srcG = (srccolor >> 8) & 0x3F;
-            srcB = (srccolor >> 16) & 0x3F;
-            srcA = (srccolor >> 24) & 0x1F;
+                srccolor = ColorBuffer[pixeladdr];
+                srcR = srccolor & 0x3F;
+                srcG = (srccolor >> 8) & 0x3F;
+                srcB = (srccolor >> 16) & 0x3F;
+                srcA = (srccolor >> 24) & 0x1F;
 
-            if (fogcolor)
-            {
-                srcR = ((fogR * density) + (srcR * (128-density))) >> 7;
-                srcG = ((fogG * density) + (srcG * (128-density))) >> 7;
-                srcB = ((fogB * density) + (srcB * (128-density))) >> 7;
-            }
+                if (fogcolor)
+                {
+                    srcR = ((fogR * density) + (srcR * (128-density))) >> 7;
+                    srcG = ((fogG * density) + (srcG * (128-density))) >> 7;
+                    srcB = ((fogB * density) + (srcB * (128-density))) >> 7;
+                }
 
-            srcA = ((fogA * density) + (srcA * (128-density))) >> 7;
+                srcA = ((fogA * density) + (srcA * (128-density))) >> 7;
 
-            ColorBuffer[pixeladdr] = srcR | (srcG << 8) | (srcB << 16) | (srcA << 24);
+                ColorBuffer[pixeladdr] = srcR | (srcG << 8) | (srcB << 16) | (srcA << 24);
+            }
 
             // fog for lower pixel
             // TODO: make this code nicer, but avoid using a loop
-- 
cgit v1.2.3