glQueryMatrix

glQueryMatrixxOES returns the values of the current matrix. mantissa returns an array of the 16 mantissa values of the current matrix, and exponent returns an array of the corresponding 16 exponent values. The matrix value is then close to $\mathrm{mantissa}\left[i\right]*2^{\mathrm{exponent}\left[i\right]}$ .

Use glMatrixMode and glActiveTexture to select the desired matrix to return.

If all entries are valid (not NaN or Inf), glQueryMatrixxOES returns the status value 0. Otherwise, for every component which is not valid, the th bit is set.

glQueryMatrixxOES is available only if the GL_OES_query_matrix extension is supported by your implementation.

The implementation is not required to keep track of overflows. If overflows are not tracked, the returned status value is always 0.

glGetString with argument GL_EXTENSIONS

glGet with argument GL_MATRIX_MODE

glGet with argument GL_MODELVIEW_MATRIX

glGet with argument GL_PROJECTION_MATRIX

glGet with argument GL_TEXTURE_MATRIX

glActiveTexture , glGetString , glMatrixMode

Copyright 2003-2004 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/ .