From 8b8cb97b77014a9f3c5dea999f4d097a78205f06 Mon Sep 17 00:00:00 2001
From: terminx <terminx@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Sun, 2 Jul 2006 20:43:26 +0000
Subject: [PATCH] git-svn-id: https://svn.eduke32.com/eduke32@203
 1a8010ca-5511-0410-912e-c29ae57300e0

---
 polymer/build/src/polymost.c | 31 +++++++++++++------------------
 1 file changed, 13 insertions(+), 18 deletions(-)

diff --git a/polymer/build/src/polymost.c b/polymer/build/src/polymost.c
index 577cd3256..88e1e29c2 100644
--- a/polymer/build/src/polymost.c
+++ b/polymer/build/src/polymost.c
@@ -69,6 +69,7 @@ static long animateoffs(short tilenum, short fakevar);
 long rendmode = 0;
 long usemodels=1, usehightile=1;
 
+float foggymcfogfogger;
 
 #include <math.h> //<-important!
 typedef struct { float x, cy[2], fy[2]; long n, p, tag, ctag, ftag; } vsptyp;
@@ -82,7 +83,7 @@ static double dxb1[MAXWALLSB], dxb2[MAXWALLSB];
 #define USEZBUFFER 1 //1:use zbuffer (slow, nice sprite rendering), 0:no zbuffer (fast, bad sprite rendering)
 #define LINTERPSIZ 4 //log2 of interpolation size. 4:pretty fast&acceptable quality, 0:best quality/slow!
 #define DEPTHDEBUG 0 //1:render distance instead of texture, for debugging only!, 0:default
-#define FOGSCALE 0.0000768
+#define FOGSCALE 0.0000800
 #define PI 3.14159265358979323
 
 static double gyxscale, gxyaspect, gviewxrange, ghalfx, grhalfxdown10, grhalfxdown10x, ghoriz;
@@ -2206,7 +2207,7 @@ static void polymost_drawalls (long bunch)
             col[2] = (float)palookupfog[sec->floorpal].b / 63.f;
             col[3] = 0;
             bglFogfv(GL_FOG_COLOR,col);
-            bglFogf(GL_FOG_DENSITY,gvisibility/(sec->floorshade<0?klabs(sec->floorshade):1)*((float)((unsigned char)(sec->visibility+16))));
+            bglFogf(GL_FOG_DENSITY,(gvisibility*((float)((unsigned char)(sec->visibility+16))))/(sec->floorshade<0?klabs(sec->floorshade):1));
 
 //            bglFogf(GL_FOG_DENSITY,gvisibility*((float)((unsigned char)(sec->visibility+16))));
         }
@@ -3045,12 +3046,10 @@ static void polymost_drawalls (long bunch)
                 if (wal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
 
                 {
-                    float oldfogval;
-                    
-                    bglGetFloatv(GL_FOG_DENSITY,&oldfogval);
-                    bglFogf(GL_FOG_DENSITY,gvisibility/(wal->shade<0?klabs(wal->shade):1)*((float)((unsigned char)(sec->visibility+16))));
+                    bglGetFloatv(GL_FOG_DENSITY,&foggymcfogfogger);
+                    bglFogf(GL_FOG_DENSITY,(gvisibility*((float)((unsigned char)(sec->visibility+16))))/(wal->shade<0?klabs(wal->shade):1));
                     pow2xsplit = 1; domost(x1,ocy1,x0,ocy0);
-                    bglFogf(GL_FOG_DENSITY,oldfogval);
+                    bglFogf(GL_FOG_DENSITY,foggymcfogfogger);
                 }
 
                 if (wal->cstat&8) { gux = ogux; guy = oguy; guo = oguo; }
@@ -3088,12 +3087,10 @@ static void polymost_drawalls (long bunch)
                 if (nwal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
 
                 {
-                    float oldfogval;
-                    
-                    bglGetFloatv(GL_FOG_DENSITY,&oldfogval);
-                    bglFogf(GL_FOG_DENSITY,gvisibility/(nwal->shade<0?klabs(nwal->shade):1)*((float)((unsigned char)(sec->visibility+16))));
+                    bglGetFloatv(GL_FOG_DENSITY,&foggymcfogfogger);
+                    bglFogf(GL_FOG_DENSITY,(gvisibility*((float)((unsigned char)(sec->visibility+16))))/(nwal->shade<0?klabs(nwal->shade):1));
                     pow2xsplit = 1; domost(x0,ofy0,x1,ofy1);
-                    bglFogf(GL_FOG_DENSITY,oldfogval);
+                    bglFogf(GL_FOG_DENSITY,foggymcfogfogger);
                 }
 
                 if (wal->cstat&(2+8)) { guo = oguo; gux = ogux; guy = oguy; }
@@ -3127,12 +3124,10 @@ static void polymost_drawalls (long bunch)
             if (wal->cstat&256) { gvx = -gvx; gvy = -gvy; gvo = -gvo; } //yflip
 
             {
-                float oldfogval;
-                
-                bglGetFloatv(GL_FOG_DENSITY,&oldfogval);
-                bglFogf(GL_FOG_DENSITY,gvisibility/(wal->shade<0?klabs(wal->shade):1)*((float)((unsigned char)(sec->visibility+16))));
+                bglGetFloatv(GL_FOG_DENSITY,&foggymcfogfogger);
+                bglFogf(GL_FOG_DENSITY,(gvisibility*((float)((unsigned char)(sec->visibility+16))))/(wal->shade<0?klabs(wal->shade):1));
                 pow2xsplit = 1; domost(x0,-10000,x1,-10000);
-                bglFogf(GL_FOG_DENSITY,oldfogval);
+                bglFogf(GL_FOG_DENSITY,foggymcfogfogger);
             }
         }
 
@@ -3691,7 +3686,7 @@ if (tspr->cstat&2) { if (!(tspr->cstat&512)) method = 2+4; else method = 3+4; }
         col[2] = (float)palookupfog[sector[tspr->sectnum].floorpal].b / 63.f;
         col[3] = 0;
         bglFogfv(GL_FOG_COLOR,col); //default is 0,0,0,0
-        bglFogf(GL_FOG_DENSITY,gvisibility/(globalshade<0?klabs(globalshade):1)*((float)((unsigned char)(sector[tspr->sectnum].visibility+16))));
+        bglFogf(GL_FOG_DENSITY,(gvisibility*((float)((unsigned char)(sector[tspr->sectnum].visibility+16))))/(globalshade<0?klabs(globalshade):1));
     }
 
     while (rendmode == 3 && !(spriteext[tspr->owner].flags&SPREXT_NOTMD)) {