Join Dave Schultze for an in-depth discussion in this video Using output settings for smart sizing, part of Rhino and V-Ray: Rendering.
Next up, I'm going to show how the output size can be modified to either match or ignore the viewport. Many beginners aren't even aware of these settings so they end up rendering images that are way too big, and then try to use Photoshop to crop it, or even worse just leave them looking weird. So let's explore. This is found on the Options Editor. And the section we're looking for is Output, which is already open right there. You've noticed here, there's a lot of presets. Actually there's six of those already set. These are handy, but unfortunately, they rarely match the view port size.
So, you can tell these are pretty much a two by three ratio. And this perspective view port here is like two and a half or more to one. So it's not even a good match or anywhere close. So there's two key defaults that many beginners would ignore. One is they don't select this Override. So what's going to happen and I'll show you here in just a seconds. It's going to render the exact number of pixels that happen to be in this view port. Which if I go to another computer would probably be different on a different sized monitor. So that's not a very useful feature. The other default I mentioned that's kind of a problem is if we were to select one of these sizes it wouldn't match at all. Let's go ahead and take a quick look at for establishing shot and render this first view port here. I'm going to make sure that's selected.
And then hit the R for render button. So now the render's complete. It's probably on the small side, but you'll notice it's exactly the same size as the view port it came from. Okay, so let's get smart about this. Let's start having our view port match and be the size we want. Both would be nice. So I'm going to go back to the options here, I'm going to overwrite whatever the view port particular size is and then I'm going to use this unlock button here, in case it's selected you want to deselect it and then we're going to get get the view aspect so it does leave the width alone and the height is adjusted so this ratio of 2.47 or roughly two and half is exactly what we're looking at in the view port.
So if we lock that down next, that would allow us to change these numbers. And you can change either one, and the other will be updated. So I'd like to get a 900 pixel wide. And notice that the height adjusts, and maintains that same, exact ratio. Let's go ahead and render that and just take a quick look. Press the R button to render. Be back in a second. Okay the render is complete and now you can see that this still the exact same ratio, but it's any size I want. So I'm going to have some fun with this I want to close this down. And you can actually use the view port as if it's a camera. so what I'm going to do is maybe take a close up of the penguin. So I'm just going to change my viewport and then I'm going to zoom in a little bit. Manoeuvre it around like to be able to see his beautiful blue eyes so I want to bring it round there.
There you go. So, using the same techniques we just learned going to go back to the Options panel. So we're going to override the viewport. We're going to unlock it because remember this is the aspect ratio from the prior one. We're going to click on Get the View Aspect. And now it's a lot taller than it is wide, so we can lock it down. We don't care what the numbers are initially, and I can say, well, I don't want it that tall. So, I'm just going to say, I need to fit into a presentation with a 500 pixel size. So, that gives us 500 by 730, or I can just say, you know what? 900 will fit on the monitor just fine, so let's just change that. Now, with this still selected, it's very easy to click on other view ports.
Which happens quite a bit, we're going to click on the R2 render and take a look. Okay, the render is complete, actually, you might notice that it looks smaller than expected. This is because it's scaled down. Look at the top here, it's 50%, so we can actually use the scroll wheel to zoom in, and that is actual size. Now, if you didn't know about this technique, you might've left that, original view port kind of wide and horizontal and then rendered maybe four times as much area as you needed and then crop it back down, just to get the penguin here we're looking at. So, use your view ports and then change the view aspect either locking or unlocking it.
So, always use the Output section whenever you want to make sure your image is correctly framed. Don't forget that it's usually smarter to start off with a smaller render, testing things as you go, and saving time. Then you can scale up your file image when your ready and everything is dialed in.
- 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