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take care for division by zero when normalizing

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Andrew Meadows 2016-10-05 15:00:22 -07:00
parent 7642e9fd1e
commit e46c15401a
1 changed files with 5 additions and 1 deletions
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6
libraries/physics/src/CollisionRenderMeshCache.cpp
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@ -90,7 +90,11 @@ bool copyShapeToMesh(const btTransform& transform, const btConvexShape* shape,
avgVertex = transform * (avgVertex * (1.0f / (float)numHullVertices)); avgVertex = transform * (avgVertex * (1.0f / (float)numHullVertices));
for (int i = 0; i < numHullVertices; ++i) { for (int i = 0; i < numHullVertices; ++i) {
btVector3 norm = (transform * hullVertices[i] - avgVertex).normalize(); btVector3 norm = transform * hullVertices[i] - avgVertex;
btScalar normLength = norm.length();
if (normLength > FLT_EPSILON) {
norm /= normLength;
}
memcpy(tempVertices + 3 * i, norm.m_floats, SIZE_OF_VEC3); memcpy(tempVertices + 3 * i, norm.m_floats, SIZE_OF_VEC3);
} }
gpu::BufferView::Size numBytes = sizeof(float) * (3 * numHullVertices); gpu::BufferView::Size numBytes = sizeof(float) * (3 * numHullVertices);