Khan Academy
Khan Academy: Introduction to Rendering
This video [2:08] is an introduction to rendering, transforming a 3-D computer space into a series of 2-D images that play one right after another to create a movie.
Khan Academy
Khan Academy: Getting to Know Susan Fong
This video is an interview with Susan Fong, Global Technology and Rendering Supervisor for Pixar.
Khan Academy
Khan Academy: 5. 3 D Ray Tracing Part 1
Now we are ready to ray trace in 3D. We'll look at the problem of ray triangle intersection. Click here for more detail on the plane equation.
Khan Academy
Khan Academy: 4. Using the Line Equation
Next we need to throw away the slope-intercept form and use the line equation instead. Click here to see why dividing by zero is bad. Click here to try the interactive program shown in the video.
Khan Academy
Khan Academy: 6. 3 D Ray Tracing Part 2
Now we just need to determine whether our intersection point is inside or outside the triangle. Click here to review weighted averages of three points.
Khan Academy
Khan Academy: 2. Parametric Form of a Ray
This video introduces the parametric form of a ray in 2D.