From 252ec68e84ce9d485a6d941e2f5ab8bd486fc172 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Sat, 11 May 2019 15:00:25 +0200
Subject: [PATCH] PC seems working

---
 s3l.h     | 8 ++------
 testSDL.c | 2 +-
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/s3l.h b/s3l.h
index e6fa259..acd791f 100644
--- a/s3l.h
+++ b/s3l.h
@@ -860,7 +860,6 @@ void _S3L_drawFilledTriangle(
       int16_t aDy = S3L_nonZero(y##a - y##t);\
       int16_t bDy = S3L_nonZero(y##b - y##t);\
       if ((aDx << 4) / aDy < (bDx << 4) / bDy)\
-      /*if (x##a <= x##b)*/\
       {\
         lPointSx = x##a; lPointSy = y##a;\
         rPointSx = x##b; rPointSy = y##b;\
@@ -1002,7 +1001,6 @@ void _S3L_drawFilledTriangle(
 
 #if S3L_PERSPECTIVE_CORRECTION == 1
   S3L_PerspectiveCorrectionState lPC, rPC, rowPC;
-  int8_t topPart = 1; // whether drawing top or bottom part of the triangle
 
   initPC(t,l,l)
   initPC(t,r,r)
@@ -1029,9 +1027,8 @@ void _S3L_drawFilledTriangle(
         manageSplit(0,2,r)
 
 #if S3L_PERSPECTIVE_CORRECTION == 1
-        initPC(l,r,l)
+        initPC(r,l,l)
         initPC(r,t,r)
-        topPart = 0;
 #endif
       }
       else
@@ -1040,9 +1037,8 @@ void _S3L_drawFilledTriangle(
         manageSplit(1,2,l)
 
 #if S3L_PERSPECTIVE_CORRECTION == 1
-        initPC(r,l,r)
+        initPC(l,r,r)
         initPC(l,t,l)
-        topPart = 0;
 #endif
       }
     }
diff --git a/testSDL.c b/testSDL.c
index 592963c..0df898c 100644
--- a/testSDL.c
+++ b/testSDL.c
@@ -123,7 +123,7 @@ void draw()
   modelTransform.rotation.x = frame * 0.3;
 
   S3L_drawModelIndexed(ver,tri,12,modelTransform,&camera,&conf);
-//  S3L_drawModelIndexed(ver,tri + 3,1,modelTransform,&camera,&conf);
+//  S3L_drawModelIndexed(ver,tri,1,modelTransform,&camera,&conf);
 
 /*
 conf.backfaceCulling = S3L_BACKFACE_CULLING_NONE;