VuoMeshUtility.cc File Reference

Description

VuoMeshUtility implementation.

Copyright

Copyright © 2012–2015 Kosada Incorporated. This code may be modified and distributed under the terms of the MIT License. For more information, see http://vuo.org/license.

Macros
#define	PI   3.14159265359
	Constant providing the ratio of a circle's circumference to its diameter.

Functions
static VuoPoint4d	VuoPoint4d_min (const VuoPoint4d lhs, const VuoPoint4d rhs)
	Returns component-wise min, ignoring W.
static VuoPoint4d	VuoPoint4d_max (const VuoPoint4d lhs, const VuoPoint4d rhs)
	Returns component-wise max, ignoring W.
void	VuoMeshUtility_calculateNormals (VuoSubmesh *submesh)
	Calculates the normal for each vertex in this submesh.
void	VuoMeshUtility_calculateTangents (VuoSubmesh *submesh)
	Calculates tangents and bitangents for a mesh given vertices, textures, normals, and triangles.
bool	VuoMeshUtility_bounds (const VuoSubmesh mesh, VuoPoint4d *min, VuoPoint4d *max)
	Get the bounds of a submesh.
void	VuoMeshUtility_calculateSphericalUVs (VuoSubmesh *submesh)
	Generate UVs by calculating each vertex position as projected onto a bounding sphere.
static float	dot (const VuoPoint4d lhs, const VuoPoint4d rhs)
	Dot product of XYZ values in 4d points.
void	VuoMeshUtility_insertSeam (VuoSubmesh *submesh)
	Inserts a seam on a submesh.
static int	compare (const void *lhs, const void *rhs)
	Compare function for triangle ordering qsort in removeUnusedVertices.
void	VuoMeshUtility_removeUnusedVertices (VuoSubmesh *mesh)
	Removes unused vertices from a mesh.

Macro Definition Documentation

#define PI   3.14159265359

Constant providing the ratio of a circle's circumference to its diameter.

Function Documentation

static int compare ( const void *  lhs, const void *  rhs  )

static

Compare function for triangle ordering qsort in removeUnusedVertices.

static float dot ( const VuoPoint4d  lhs, const VuoPoint4d  rhs  )

static

Dot product of XYZ values in 4d points.

bool VuoMeshUtility_bounds	(	const VuoSubmesh	mesh,
		VuoPoint4d *	min,
		VuoPoint4d *	max
	)

Get the bounds of a submesh.

void VuoMeshUtility_calculateNormals

(

VuoSubmesh *

submesh

)

Calculates the normal for each vertex in this submesh.

Generate normals for this submesh.

Vertices pointed at by multiple element indices will be averaged.

void VuoMeshUtility_calculateSphericalUVs

(

VuoSubmesh *

submesh

)

Generate UVs by calculating each vertex position as projected onto a bounding sphere.

Generate spherical UVs for this submesh.

http://en.wikipedia.org/wiki/UV_mapping

void VuoMeshUtility_calculateTangents

(

VuoSubmesh *

submesh

)

Calculates tangents and bitangents for a mesh given vertices, textures, normals, and triangles.

Generate tangents and bitangents for this submesh.

Assumes triangles are wound using VuoMesh_IndividualTriangles, and that the positions, textures, normals, and triangles arrays are valid. Lengyel, Eric. “Computing Tangent Space Basis Vectors for an Arbitrary Mesh”. Terathon Software 3D Graphics Library, 2001. http://www.terathon.com/code/tangent.html

void VuoMeshUtility_insertSeam

(

VuoSubmesh *

submesh

)

Inserts a seam on a submesh.

Inserts a seam along a vertical line on the left side of a mesh.

May (probably will) leave unused vertices.

void VuoMeshUtility_removeUnusedVertices

(

VuoSubmesh *

mesh

)

Removes unused vertices from a mesh.

Remove unused vertices in a mesh.

static VuoPoint4d VuoPoint4d_max ( const VuoPoint4d  lhs, const VuoPoint4d  rhs  )

inlinestatic

Returns component-wise max, ignoring W.

static VuoPoint4d VuoPoint4d_min ( const VuoPoint4d  lhs, const VuoPoint4d  rhs  )

inlinestatic

Returns component-wise min, ignoring W.