From 4c3eba7d18aa497df2f3edf2dffb02b6868bc0f8 Mon Sep 17 00:00:00 2001
From: Irlan <Irlan@DESKTOP-Q1RSAUM>
Date: Tue, 11 Apr 2017 17:06:46 -0300
Subject: [PATCH] fix issue

---
 src/bounce/dynamics/shapes/mesh_shape.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/bounce/dynamics/shapes/mesh_shape.cpp b/src/bounce/dynamics/shapes/mesh_shape.cpp
index 6cd57a0..1848821 100644
--- a/src/bounce/dynamics/shapes/mesh_shape.cpp
+++ b/src/bounce/dynamics/shapes/mesh_shape.cpp
@@ -138,8 +138,12 @@ bool b3MeshShape::RayCast(b3RayCastOutput* output, const b3RayCastInput& input,
 	float32 v = b3Dot(QC_x_QA, AB_x_AC);
 	float32 w = b3Dot(QA_x_QB, AB_x_AC);
 
+	// This tolerance helps intersections lying on  
+	// shared edges to not be missed.
+	const float32 kTol = -0.005f;
+
 	// Is the intersection on the triangle?
-	if (u > 0.0f && v > 0.0f && w > 0.0f)
+	if (u > kTol && v > kTol && w > kTol)
 	{
 		output->fraction = t;