SC443: Computer Game Programming

Assignment #3: Bumps in NTU. Can You Feel It?

The purpose of this assignment is to modify Assignment #2, and add a Bump Map to any of the surfaces present in the previous assignment. The purpose of this is not to practise coding bump mapping in OpenGL or DirectX, but rather to make sure the student understands the concept of Bump Mapping and how it can be useful in the rendering of 3D generated scenes.

Using a simple graphics programme, an embossed bump map of the brick wall in the scene has been created. This bump map is then used to enhance the brick wall in the scene. Pressing the “B” buton will swap the regular texture map with the bump map. A comparison of the bump maps can be seen below.

Picture on left is regular texture map. Picture on right is the bump map.

Navigation buttons are supposed to be provided in this assignment, however, it has already been incorporated in the previous assignment, so the key navigations are still the same.

The choice of using Texture Bump Mapping is because the OpenGL code for actual bump mapping is very complex and various implementations of it failed and tended to crash the programme itself. Hence, the Texture Bump Mapping is used. The code and executable for this assignment can be found here.