Problem with OpenGL calls

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Javier Muņoz Lagaron (jml++at++mail2.udc.es)
Thu, 10 Dec 1998 12:22:04 +0100

Hello,

We are developing a Performer application.
In this application, we want to make OpenGL
calls in the draw process.

But it doesnīt work if I use certain calls as
glRasterPos2i. I donīt know if I must change
something in the configuration of pfWindow
or pfPipeWindow for working with that
calls.

For example these lines donīt work:

GLint vals[4];
GLboolean val;

glGetIntegerv(GL_CURRENT_RASTER_POSITION,vals); <-1
glGetBooleanv(GL_CURRENT_RASTER_POSITION_VALID,&val);
glRasterPos4i(0,0,0,1);
glGetIntegerv(GL_CURRENT_RASTER_POSITION,vals); <-2
glGetBooleanv(GL_CURRENT_RASTER_POSITION_VALID,&val);
glDrawPixels(nave->ns,nave->nt,GL_RGB,GL_UNSIGNED_BYTE,nave->imagen);

1 and 2 returns the same values, and the imagen isnīt displayed.

Can anyone give us any clue?

Many thanks

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