Previous | Next --- Slide 5 of 21
Back to Lecture Thumbnails
alyssal

Can you talk about some of the differences between pathtracing and raytracing/will we cover it when we do photorealistic rendering?

motoole2

Ray tracing can be thought of as an umbrella term that also encompasses path tracing. Ray tracing is the process of shooting out rays from a camera, computing how these rays reflect off objects, and eventually drawing a path that connects to a light source. Path tracing involves the same process, but relies on rigorous algorithms (i.e., Monte Carlo ray tracing) in order to accurately simulate how light interacts with environments.

And yes, we will talk about this topic in class and cover this in assignment 3, as mentioned in this slide.

cche

Is it true that most of the current movies with beautiful graphics are done using PT since its advantage of realism.

motoole2

Yes, path tracing is the standard technique used for movies, where realism becomes far more valuable than performance (though rasterization is also still used in production to perform quick and dirty renderings to preview CG content). See this abstract for a course on the path tracing revolution in the movie industry.