Method CalculateNormals

core/mesh.cpp:68–92

}

void Mesh::CalculateNormals()
{
	m_normals.resize(0);
	m_normals.resize(m_positions.size());

	int numTris = int(GetNumFaces());

	for (int i=0; i < numTris; ++i)
	{
		int a = m_indices[i*3+0];
		int b = m_indices[i*3+1];
		int c = m_indices[i*3+2];
		
		Vec3 n = Cross(m_positions[b]-m_positions[a], m_positions[c]-m_positions[a]);

		m_normals[a] += n;
		m_normals[b] += n;
		m_normals[c] += n;
	}

	int numVertices = int(GetNumVertices());

	for (int i=0; i < numVertices; ++i)
		m_normals[i] = ::Normalize(m_normals[i]);
}

namespace 
{