From 08b449f1492e6c82d883d9714f33f5c24d50e879 Mon Sep 17 00:00:00 2001
From: yunfeibai <byf1658@gmail.com>
Date: Tue, 6 Dec 2016 13:36:41 -0800
Subject: [PATCH] Adjust magic number to prevent z-fighting.

---
 examples/TinyRenderer/TinyRenderer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/TinyRenderer/TinyRenderer.cpp b/examples/TinyRenderer/TinyRenderer.cpp
index a2bcea5d4..d321caccd 100644
--- a/examples/TinyRenderer/TinyRenderer.cpp
+++ b/examples/TinyRenderer/TinyRenderer.cpp
@@ -126,7 +126,7 @@ struct Shader : public IShader {
         int index_x = b3Max(0, b3Min(m_width-1, int(p[0])));
         int index_y = b3Max(0, b3Min(m_height-1, int(p[1])));
         int idx = index_x + index_y*m_width; // index in the shadowbuffer array
-        float shadow = 0.8+0.2*(m_shadowBuffer->at(idx)<-depth+0.2); // magic coeff to avoid z-fighting
+        float shadow = 0.8+0.2*(m_shadowBuffer->at(idx)<-depth+0.05); // magic coeff to avoid z-fighting
         
         Vec3f bn = (varying_nrm*bar).normalize();
         Vec2f uv = varying_uv*bar;