Mental ray and raytrace help

[Mazin]

Originally Posted by Setsanto

Could someone lease explain to me just where to find and how to use metal ray and raytrace. I'm a little confused as to their function.

Mental ray is a renderer. You know how when you render, you see that little white line move down the picture? That's the scanline renderer. Mental ray is a different renderer that has more features.

Raytrace is a rendering technique used to calculate reflections and refractions for things like glass and water. You can read up on this raytracing explanation (with awesome mspaint gfx!). Both the default Scanline renderer and mental ray can do raytracing.