Join Dave Schultze for an in-depth discussion in this video Activating V-Ray and understanding its approach, part of Rhino and V-Ray: Rendering.
Before we get started with the fun rendering stuff, we first need to tell Rhino which render engine to use. By default, Rhino will use its own built in engine called Rhino render. Just in case you haven't set up an additional render node with a DR spawner on other computers, let's cover that scenario first. I'm going to jump to the desktop. Now let's talk about the DR spawner installation. Remember, this is other computers that aren't working on Rhino. To install the DR spawner, you want to run the installation which we covered in chapter 104.
Then you need to launch the spawner, you can find the application by looking through the programs in either Windows seven or eight. I've created a desktop shortcut here, so let's double click that. To this utility, we'll scan the network and basically announce its availability to help out. The cool thing about this, is you can install a nine extra computers, having ten total. So that's going to be a huge boost in productivity, and there's no extra charge. This utility can also be set to launch automatically when Windows boots, although I kind of prefer launching it manually because I don't need it that often.
Since we're not using the DR spawner let's go ahead and close this and jump back to Rhino here. We'll talk about how to activate Rhino here inside this, and this is the workstation mode. So you want to go up to, the render menu and select current renderer, and there's Rhino but we want to pick V-Ray. Now if you you look up top the menu again V-Ray is the new listing just appeared. And don't forget, you'll need to have your USB license dongle plugged into your computer so everything will work fine. Now, we can need to turn it on.
Let's go to the V-Ray options. If we want to activate the other computers to help out on the distributed rendering network, we first just click on, then we can review some of the other computers and make sure they're connected. This would be a list of all the other computers that you have installed to DR spawner, and you have added their name. You can either enter its IP Address if you know it, or just type in their name. If you don't know either,. You can click on, Find server and that will usually work pretty good. I've already got my entire list done.
So just to make sure they're ready and waiting I'm going to click on this next button Resolve servers. And that verifies that they were ready and connected. Hit OK. So if I were to start a render, all the additional computers would jump in and help out. I'm not going to do a rendering right now, but it's important to understand that V-Ray is going to be using two render engines. One after the other, to give us the final results. The first engine will use one or more passes, but the second engine, where it gets really sharp, will do only one pass. Now, if this is sounding a little too nerdy and complicated, hang on for the good news at the end of this video.
Let's talk about these two passes here on the options. I'm going to go down to indirect illumination. The two engines we have selected, are listed here under primary and secondary. There's several options for each. A radiance map is the one I recommend. It's excellent quality and all purpose. You have several other options in there. But they're a little more specialized. And then for secondary, we've got brute force. That's kind of a funny name. It actually means total accuracy, this will do as many calculations as required, and there's no approximation.
Let's take a look a little bit further. I'm just going to set a radiance map, and then we have these additional roll outs for whatever is selected with some of the primary settings. Now, I'm not going to go with all the detail here, but these are set for defaults. Let's make a quick change, and just see how some of the numbers change. So these are currently now minus 3 and minus 2. I'm going to go up to the presets, and I'm going to select Very high. We're going to max this out and just see what changes. So click on the little Use preset green check mark.
We're going to go to. Indirect. We're just looking at a radiance map. Here you can see it went from minus 4 to minus 3 I believe, or minus 3 to minus 2, to minus 3 and 0. So 0 is probably where we're going to max out. This basically means for every pixel in the scene it's going to make a separate unique calculation. Minus 1, it'll only do one calculation for every four pixels that you see. So, that's a big difference. So, those numbers you're seeing are really acting as squares of the quality result. This is just one example of the settings on one of these render engines.
We won't go into any more detail but if you ever run into problems and you get weird results or the quality is just getting strange. It's probably because one of these many, many numbers got changed accidentally. The quick fix, every time, is go back up here to the top, and this is Reload All defaults. So if we come back down to, indirect elimination, and a radiance map, those are back where we started, and everything else is too. Only an advanced Uber geek, like me, would ever want to individually tweak any of these settings.
So now, the good news that I promised. For simple studio renderings, like the kind we'll be doing for this course, you can leave V-Ray set the two defaults we've already talked about, IR map and Brute force GI. Then, just use the presets to change the quality.
- Why use V-Ray?
- Installing DR Spawner
- Understanding 3D terminology
- Activating V-Ray
- Adjusting quality settings
- Get quick previews with the material override
- Understanding lighting types
- Exploring materials in the Material Editor
- Creating your own materials
- Texture mapping materials with bitmaps and procedurals
- Saving time with V-Ray presets
- Getting the right size for your render with output settings
- Working with environment lighting
- Strategies for working with cameras and camera settings
- Ensuring accurate color for your scene with color correction
- Rendering tips and tricks