prtx::MeshUtils Namespace Reference

Description

Utility functions for prtx::Mesh.

Functions
MeshPtr	createTriangulatedMesh (const MeshPtr &mesh, IndexVector *triangle2FaceMap=0)
void	transformCoords (DoubleVector &coords, const DoubleVector &matrix)
void	transformNormals (DoubleVector &normals, const DoubleVector &matrix)

Function Documentation

createTriangulatedMesh()

MeshPtr prtx::MeshUtils::createTriangulatedMesh	(	const MeshPtr &	mesh,
		IndexVector *	triangle2FaceMap = 0
	)

Creates a triangulated version of the passed Mesh.

Parameters

mesh	The mesh to trriangulate.
triangle2FaceMap	Optional pointer to index vector to return the mapping of the new triangles (faces) to the old faces.

transformCoords()

void prtx::MeshUtils::transformCoords	(	DoubleVector &	coords,
		const DoubleVector &	matrix
	)

Transforms a number of vertices (i.e. (x, y, z) coordinate triples) with a transformation matrix.

Parameters

[in,out]	coords	Vertices to transform. Size must be multiple of 3 (3 * number of vertices).
	matrix	Matrix to transform vertices with. 4x4 harmonic transformation matrix, column major (OpenGL).

transformNormals()

void prtx::MeshUtils::transformNormals	(	DoubleVector &	normals,
		const DoubleVector &	matrix
	)

Transforms a number of normals (i.e. (x, y, z) coordinate triples) with a transformation matrix. The normals are transformed with the inverse transpose of the matrix and then normalized. #param[in, out] normals Normals to transform. Size must be multiple of 3 (3 * number of normals). Normals must be normalized. #param matrix Matrix to transform the normals with. 4x4 harmonic transformation matrix, column major (OpenGL). Must be invertible.