CS 4554- Computer Graphics I: Assignment 3 : Lighting and Texture Mapping

Requirements

• Render a room with 4 walls, ceiling, and floor;
• Place multiple objects in the room;
• Objects should have appropriate normals, back face removal, and lighting ( ambient, diffuse, and specular );
• Do texture mapping on the walls, ceiling and floor;
• Viewer should be able to move and look around the room using keyboard keys;

Upload( blackboard )

• A description of your project structure (short documentation);
• Source code with enough comments to make it clear what you are doing;
• Movie of your animation

Extensions (Preparation for next Lab)

• Add multiple light sources to the room instead of just one;
• Do not let the viewpoint penetrate any of the objects and walls;
• Make one or more objects semi-transparent(remember to draw all triangles, not just the front-facing triangle);
• Texture map one or more model objects using the objects texture coordinates or generated cooordinates;

Lighting

• To do lighting in OpenGL, you should not only pass vertex position but also vertex normal to OpenGL;
• You can calculate normal for each vertex by averaging the normals from its nerighboring faces;
• To enable/disable lighting, search GL_LIGHTING, GL_LIGHT0;
• To set up parameters for light source and surface material, search glLightfv, glMaterialfv;

Texture Mapping

• A sample model with texture coordinates duck.d2 and texture image duck_upsidedown.png;
• Some sample codes for loading texture image : (Win) LoadTexture_win.zip (Mac) LoadTexture_mac.zip;

Lab Hint

• Slides cg1_ta.pptx;