1. What is a procedural model? 2. List some of the objects that might be present in a scene graph used to produce an image in a park. 3. Why are shapes represented by polygonal meshes even though they...

1. What is a procedural model?

2. List some of the objects that might be present in a scene graph used to produce an image in a park.

3. Why are shapes represented by polygonal meshes even though they could be represented more precisely by geometric equations?

4. What is texture mapping?