# Computer Graphics Exam Answers - OpenGL

I need an OpenGL computer graphics exam answered for use as a study aid.

Some sample questions from the exam:

- Given the normal, n, to a polygon that is part of the wireframe of an object and a view vector, v, that points in the direction of view, what is the condition for polygon visibility?

- Write down the formula for the cross product of the two vectors u and v. Assume that the three orthogonal directions are x, y and z. That is, when we write u = (a, b, c) it is shorthand for (ax, by, cz).

- The OpenGL function that “maps” between a specified clipping window to the viewport is glOrtho(), which takes 6 arguments that correspond to “front and back” limits for each of the 3 dimensions. A briefer version of this exists when dealing in the simpler 2-D case and it is called _______.

- Given three points p = (0,1,2), q = (1,0,2) and r = (1,2,0) of a polygon compute a normal of

the plane that the points lie in.

Taidot: C-ohjelmointi

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azksoft

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UltimateJob

Hi plz check pmb Regards

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programmingboy

I'm a OPENGL expert. I have handled OPENGL so many times. Our team members all have good experience in OpenGl. Thanks. I think I can make this within hours. Regards.

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