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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Concerning Phong shading and Gouraud shading in a 3D scene, which of the following statements are true?
(A) Gouraud shading requires more computation than Phong shading.
(B) Gouraud shading linearly interpolates the color of an interior pixel from the color at the vertices.
(C) Phong shading interpolates over the normal vectors specified at the vertices.
Choose the correct answer from the options given below:
(A) Gouraud shading requires more computation than Phong shading.
(B) Gouraud shading linearly interpolates the color of an interior pixel from the color at the vertices.
(C) Phong shading interpolates over the normal vectors specified at the vertices.
Choose the correct answer from the options given below:
Solution
Phong shading requires more computation than Gouraud shading.
So, statement A is false.
Gouraud shading computes color at vertices and interpolates color inside the polygon.
So, statement B is true.
Phong shading interpolates normal vectors and then computes illumination.
So, statement C is true.
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