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

Adaptive Dome Light setting - 3ds Max Tutorial

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

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Adaptive Dome Light setting

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- [Instructor] Probably the easiest new feature of all for us to show off in V-Ray Next, and so probably a good one to kick the cause off with, is the adaptive dome switch that is now a part of the dome lights standard controls. To show why this is an oh-so-simple and yet potentially oh-so-important option to be aware of, let's come over to the V-Ray toolbar, and after clicking on the dome light icon, click to add one of those to our top viewport, after which we can right-click in order to exit create mode. Now pretty much everything about the scene set up here is as per V-Ray defaults, and so let's straight away bump our lights multiplier up to a value of five, in the modified tab, What we get, with just the dome light for illumination in the scene, is a fairly decent quality image that took around about five minutes or so to complete. As the rendered time on this 16-core AMD Threadripper 1950 CPU is a little bit longer than I would like, which in all fairness is something that a render artist will say about pretty much any scene they do render, the good news, if you tend to create scenes that make good use of the dome light, is that we now have this very simple checkbox entitled Adaptive dome (WIP). Which if I just enable, and changing nothing else in the scene, render again, you can see makes a big difference to the time that our render takes to complete, and with no discernible difference in final render quality at all. Which is, as we say, very good news indeed. The way that this works essentially, is that it speeds up render times by optimizing the sampling algorithm for the dome light, which in turn is done by making use of already existing Light Cache samples in the scene, we need to have Light Cache set as at least one of the GI engines being used. What we will ultimately find, if we tend to make use of the dome light in our lighting setups, or if we create a lot of scenes that have to make use of sky portals for GI, is that the new adaptive dome option is that the new adaptive dome option may well become one of our new best friends. may well become one of our new best friends.

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