NAME

glodBindObjectXform - Tell GLOD to use the current OpenGL modelview and projection matrices when it performs view-dependent refinement (e.g. when its group's GLOD_ERROR_MODE is set to GLOD_SCREEN_SPACE_ERROR).

C SPECIFICATION

void glodBindObjectXform(GLuint objectname, GLenum what)

PARAMETERS

objectname

The name of the object to bind to.

what

Which GL matrices to bind against. Can be GL_MODELVIEW_MATRIX or GL_PROJECTION_MATRIX. If set to zero, this call binds against the identity matrix.

DESCRIPTION

Adapation of objects in GLOD is done at a group level using the glodAdaptGroup() call. When you are adapting a group according to the screen-space size of objects, you must specify to GLOD the camera and current position of your object using homogenous matrices using either the glodBindObjectXform() or glodObjectXform() calls.

Either function can be called at any point after loading or building an object. The bound transform will persist indefinitely across this GLOD session. It is not saved with a glodReadbackObject() .

Note that binding a transformation to an object does not actually move it during the glodDraw process. As always, the OpenGL rendering state is not changed by GLOD. It is up to you to set this same transformation before calling glodDrawPatch() to ensure the adaptation and the rendered position are consistent.

ERRORS

GLOD_INVALID_NAME is generated if an object of this objectname already exists.

GLOD_INVALID_STATE is generated if the object name has not been built or loaded.