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Kymer

ModelView problem

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Okay I have a model and eventially want to draw a line to another object. The problem that I am having is that when I use the following code, the drawn object should be fixed when I translate or rotate the model. At first I blamed it on my inversion function. But I tried replacing it with the ones from Graphic Gems and the one found in Mesa. Anyone have any suggestions. Btw, I am using Windows and the MS version of opengl. typedef double GLMatrix[16] ; GLMatrix objMatrix, objInverseMatrix ; glMatrixMode(GL_MODELVIEW) ; // Rotate and translate here PushMatrix() ; glBegin(GL_QUADS) ; // Draw something glEnd() ; glGetDoublev(GL_MODELVIEW_MATRIX,obj2Matrix) ; InvertMatrix(objMatrix,objInverseMatrix) ; glLoadMatrixd(objInverseMatrix) ; glBegin(GL_QUADS) // Draw Something here that stays put relative to the // first thing I drew. glEnd() ; PopMatrix() ; One other strange behavior is that when I use GL_POINTS, I get two points one in the right place on in the wrong. Not so with any other of the drawing modes.

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