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Q1. Develop the illumination model that takes into account both diffuse reflections and also specular reflection for the object lying at a distance of D units from a unit light source.

Q2. Light falls all along the z axis on a 3-D planar surface with unit normal along N(nx, ny, nz). Work out the components of Reflection vector R.

Q3. Illustrate how a cylinder and a cone can be constructed by using the method of swept solids. The 3-D coordinates of the centre of base of the cylinder is (30, 0, 30) and that of centre of base of the cone is (100, 0, 30). Both encompass base diameter of 40 and height 100.

Q4. Consider a clipping window A(0,0), B(30,0), C(30,20), D(0, 20). By using the Cyrus Beck algorithm to find out the portion of line P(25,40) – Q(50,10) clipped by this window. Make the complete Cyrus beck table and illustrate all the computations.

Q5. Describe in brief the Z-Buffer method for hidden surface removal. Show how depths are computed for a planar Polygon Ax + By + Cz + D = 0 whose left edge has a slope m.

Computer Graphics, Computer Science

  • Category:- Computer Graphics
  • Reference No.:- M911210

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