C++ (Cpp) ArbitraryMeshTriangle_sumTangents Examples

Example #1

File: RenderablePicoSurface.cpp Project: DerSaidin/DarkRadiant

// Tangent calculation
void RenderablePicoSurface::calculateTangents() {

	// Calculate the tangents and bitangents using the indices into the vertex
	// array.
	for (Indices::iterator i = _indices.begin();
		 i != _indices.end();
		 i += 3)
	{
		ArbitraryMeshVertex& a = _vertices[*i];
		ArbitraryMeshVertex& b = _vertices[*(i + 1)];
		ArbitraryMeshVertex& c = _vertices[*(i + 2)];

		// Call the tangent calculation function
		ArbitraryMeshTriangle_sumTangents(a, b, c);
	}

	// Normalise all of the tangent and bitangent vectors
	for (VertexVector::iterator j = _vertices.begin();
		 j != _vertices.end();
		 ++j)
	{
		j->tangent.normalise();
		j->bitangent.normalise();
	}
}

Example #2

File: MD5Surface.cpp Project: BielBdeLuna/DarkRadiant

// Update geometry
void MD5Surface::updateGeometry()
{
	_aabb_local = AABB();

	for (Vertices::const_iterator i = _vertices.begin(); i != _vertices.end(); ++i)
	{
		_aabb_local.includePoint(i->vertex);
	}

	for (Indices::iterator i = _indices.begin();
		 i != _indices.end();
		 i += 3)
	{
		ArbitraryMeshVertex& a = _vertices[*(i + 0)];
		ArbitraryMeshVertex& b = _vertices[*(i + 1)];
		ArbitraryMeshVertex& c = _vertices[*(i + 2)];

		ArbitraryMeshTriangle_sumTangents(a, b, c);
	}

	for (Vertices::iterator i = _vertices.begin();
		 i != _vertices.end();
		 ++i)
	{
		i->tangent.normalise();
		i->bitangent.normalise();
	}

	// Build the display lists
	createDisplayLists();
}