From the course: V-Ray 3.0 for 3ds Max Essential Training

Unlock the full course today

Join today to access over 22,500 courses taught by industry experts or purchase this course individually.

How irradiance mapping works

How irradiance mapping works

From the course: V-Ray 3.0 for 3ds Max Essential Training

Start my 1-month free trial

How irradiance mapping works

“

- Irradiance mapping is probably the most widely used of V-Ray's primary bounce GI engines, simply because it is effective, flexible and, at the basic level, pretty easy to use. In this particular video, given that understanding the basic principles behind how a technology works can often times go a long way toward helping us make good production choices, we want to quickly run through the basics of how irradiance mapping as a technology works. A couple of things that we need to know right from the start are that, firstly, irradiance mapping is a view-dependent global illumination technique. This means that the GI solution is calculated only from the rendering camera's point of view. If we move that camera once the irradiance map has been computed, the GI solution will most probably need to be recalculated. This is why by default, V-Ray's irradiance mapping system is set to completely recalculate each and every time we take a new render. We do, of course, have options available for…

Contents