From 796fc8e76d689e00a8b2bffecf5779a4ee2cc4bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Sat, 8 Jun 2019 19:59:06 +0200
Subject: [PATCH] Fix equality

---
 programs/modelViewer.c |  2 +-
 programs/testSDL.c     | 10 ++++++++--
 small3dlib.h           |  2 +-
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/programs/modelViewer.c b/programs/modelViewer.c
index b27de8a..f9b2d8b 100644
--- a/programs/modelViewer.c
+++ b/programs/modelViewer.c
@@ -13,7 +13,7 @@
 
 #define S3L_FLAT 0
 #define S3L_STRICT_NEAR_CULLING 1
-#define S3L_PERSPECTIVE_CORRECTION 0
+#define S3L_PERSPECTIVE_CORRECTION 1
 #define S3L_SORT 0
 #define S3L_STENCIL_BUFFER 0
 #define S3L_Z_BUFFER 1
diff --git a/programs/testSDL.c b/programs/testSDL.c
index 785b380..bad4045 100644
--- a/programs/testSDL.c
+++ b/programs/testSDL.c
@@ -85,7 +85,7 @@ uint32_t frame = 0;
 
 void clearScreen()
 {
-  memset(pixels,0,S3L_RESOLUTION_X * S3L_RESOLUTION_Y * sizeof(uint32_t));
+  memset(pixels,255,S3L_RESOLUTION_X * S3L_RESOLUTION_Y * sizeof(uint32_t));
 }
 
 static inline void setPixel(int x, int y, uint8_t red, uint8_t green, uint8_t blue)
@@ -133,6 +133,12 @@ void houseTex(int32_t u, int32_t v, uint8_t *r, uint8_t *g, uint8_t *b)
 
 void drawPixel(S3L_PixelInfo *p)
 {
+
+//setPixel(p->x,p->y,p->triangleIndex,p->triangleIndex,p->triangleIndex);
+setPixel(p->x,p->y,0,0,0);
+
+return;
+
   if (p->x < 0 || p ->x >= S3L_RESOLUTION_X || p->y < 0 || p->y >= S3L_RESOLUTION_Y)
   {
     offScreenPixels++;
@@ -338,7 +344,7 @@ scene.camera.transform.rotation.x = -35;
 scene.camera.transform.rotation.y = 128;
 scene.camera.transform.rotation.z = 0;
 
-S3L_setTransform3D(3196,1814,5958,-18,300,0,512,512,512,&(scene.camera.transform));
+S3L_setTransform3D(-2039,173,6096,-2,-296,0,512,512,512,&(scene.camera.transform));
 
   scene.modelCount = 2;
   scene.models = models;
diff --git a/small3dlib.h b/small3dlib.h
index e90ae70..b658f84 100644
--- a/small3dlib.h
+++ b/small3dlib.h
@@ -2124,7 +2124,7 @@ static inline int8_t S3L_triangleIsVisible(
       (p1.y - p0.y) * (p2.x - p1.x) - (p1.x - p0.x) * (p2.y - p1.y); 
 
     if ((backfaceCulling == 1 && winding < 0) ||
-        (backfaceCulling == 2 && winding >= 0))
+        (backfaceCulling == 2 && winding > 0))
       return 0;
   }