Vega FEM Library (v1.1) User's Manual - University of Southern ...

(Re-)Builds or clears an internally-stored structure for easy lookup of faces neighboring a given vertex.
This must be done before using any of the vertex-normal generation functions below.
void buildVertexNormals(double angle)
The functions buildFaceNormals and buildVertexFaceNeighbors must be called first. Sets the vertex
normals of the mesh to create a smooth-looking surface except for at angles exceeding angle.
void buildVertexNormalsFancy(double angle)
The functions buildFaceNormals and buildVertexFaceNeighbors must be called first. Uses a slower
but more precise method to set the vertex normals of the mesh to create a smooth-looking surface except
for at angles exceeding angle.
void save(const std::string & filename, int outputMaterials = 0)
Saves the mesh to file filename, in obj format, optionally writing the mesh materials to filename.mtl.
class ObjMeshRender Renders an ObjMesh object via OpenGL.
ObjMeshRender(ObjMesh * mesh)
Initializes the object based upon the mesh mesh.
void render(int geometryMode, int renderMode)
unsigned int createDisplayList(int geometryMode, int renderMode)
Renders the object, or returns the integer identifier of an OpenGL display list to render the object.
geometryMode is a bit field of options, controlling whether to render faces, edges, vertices, and/or normals.
renderMode is a bit field of options to control rendering settings such as whether to use flat or smooth
shading, whether to render textures, and/or whether to use colors or to set glMaterial material properties.
See objMeshRender.h for more detailed info.
void renderSpecifiedVertices(int * specifiedVertices, int numSpecifiedVertices)
Renders the numSpecifiedVertices vertices whose indices are specified in the array specifiedVertices.
void renderGroupEdges(char * groupName)
Renders all the edges in the group of name groupName in the mesh.
void loadTextures(int textureMode)
Loads any textures specified in the material file of the mesh used to construct the ObjMesh mesh.
textureMode specifies the color blend mode and mip-mapping settings for the textures;
see ObjMeshRender::Texture::loadTexture.
static unsigned char * loadPPM(std::string filename, int * width, int * height)
Loads a binary-format RGB .ppm file (type P6), writes the dimensions to *width and *height, and
returns a pointer to a newly-allocated (new) array of size 3 · width · height of the components of the pixels of
the image. The order of pixels in the output is bottom row to top row. Returns NULL upon failure.
class ObjMeshRender::Texture Stores the information for an OpenGL texture.
Texture()
Initializes the object to store no texture.
~Texture()
If the object stores a texture, calls glDeleteTextures on it.
void loadTexture(std::string fullPath, int textureMode)
26