Outlining Objects in OpenGL

Started by PGmeiner, Aug 02 2001 08:03 AM

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#1 PGmeiner Members - Reputation: 122

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Posted 02 August 2001 - 08:03 AM

I woiuld display some Obejcts for example a simple Cube who is filled with a color (drawed in Mode GL_FILLED) and whos edges are drawn as black lines. I will outline the cube. Exists there a another possibilty to do this instead of drawing the filled cube first and overdraw it with black lines ?? Thanks for your help Peter Gmeiner

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#2 zedzeek Members - Reputation: 528

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Posted 02 August 2001 - 10:49 AM

no i think thats the easiest way
glPolygonMode( GL_FRONT, GL_FILL )
draw cube
glPolygonMode( GL_FRONT, GL_LINE )
draw cube // the vertices should still be in hardware thus this shouldnt be so slow

perhaps also for the line version u need glDepthFunc( GL_EQUAL ) or glPolygonOffSet(..)

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