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GLSCALE() GLSCALE() NAME glScaled, glScalef - multiply the current matrix by a general scaling matrix C SPECIFICATION void glScaled( GLdouble x, GLdouble y, GLdouble z ) void glScalef( GLfloat x, GLfloat y, GLfloat z ) delim $$ PARAMETERS x, y, z Specify scale factors along the x, y, and z axes, respectively. DESCRIPTION glScale produces a nonuniform scaling along the x, y, and z axes. The three parameters indicate the desired scale factor along each of the three axes. The current matrix (see glMatrixMode) is multiplied by this scale ma- trix, and the product replaces the current matrix as if glScale were called with the following matrix as its argument: left ( ~ down 20 matrix { ccol { ~"x" above ~0 above ~0 above ~0 } ccol { ~0 above ~"y" above ~0 above ~0 } ccol { ~0 above ~0 above ~"z" above ~0 } ccol { ~0 above ~0 above ~0 above ~1} } ~~ right ) If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glScale is called are scaled. Use glPushMatrix and glPopMatrix to save and restore the unscaled coor- dinate system. NOTES If scale factors other than 1 are applied to the modelview matrix and lighting is enabled, lighting often appears wrong. In that case, en- able automatic normalization of normals by calling glEnable with the argument GL_NORMALIZE. ERRORS GL_INVALID_OPERATION is generated if glScale is executed between the execution of glBegin and the corresponding execution of glEnd. ASSOCIATED GETS glGet with argument GL_MATRIX_MODE glGet with argument GL_MODELVIEW_MATRIX glGet with argument GL_PROJECTION_MATRIX glGet with argument GL_TEXTURE_MATRIX SEE ALSO glMatrixMode, glMultMatrix, glPushMatrix, glRotate, glTranslate GLSCALE()
NAME | C SPECIFICATION | PARAMETERS | DESCRIPTION | NOTES | ERRORS | ASSOCIATED GETS | SEE ALSO
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