03/26/2002
15-462 Graphics I
3
Object Space vs. Image Space
•Graphics
pipeline: for each object, render
–Efficient
pipeline architecture, on-line
–Difficulty:
object interactions
•Ray
tracing: for each pixel, determine color
–Pixel-level
parallelism, off-line
–Difficulty:
efficiency, light scattering
•Radiosity:
for each two surface patches, determine diffuse interreflections
–Solving
integral equations, off-line
–Difficulty:
efficiency, reflection