Join Paul F. Aubin for an in-depth discussion in this video Generating rendered output, part of Revit: Rendering.
- So once you've done all the hard work of setting up your scenes, and generating your renderings, and tweaking and making all your different adjustments, the only thing that remains is to actually generate some output. So the most common ways that we generate output is to either add our renderings directly to the sheets in our project file and print them along with our document set, or to output them as separate image files that we can open and manipulate in other programs and present that way. So we've talked about some of these options already, but let's just go ahead and quickly summarize all of the different output options that are available to us.
So the first thing that I want to remind you of, I'm in this lobby view space here, is that remember you have to be in a 3D view to get to the Renderer dialogue. So if I open up the Rendering dialogue, the first thing I want to remind you is that when you generate your renderings, you can save them to a project or you can export them. Now it's kind of important to remember to do that because, as you'll notice right now, all these buttons are grayed out. So what that's telling me is that there's no rendering currently in memory. So it only remembers the last rendering in the current session of Revit. So if you close Revit and go home and you come back tomorrow, it's not going to remember the rendering you did unless you remembered to save it or export it.
So even if you're not so sure you want to keep it, it's not a bad idea to do one of those two things. Now if you save them to the project, we've seen that they will generate the Renderings tab here and they will be included as basically image files sitting on these essentially drafting views. This one's a draft version of the rendering, and here's a higher quality version of the rendering. Now over time, if you add lots and lots of these it can start to increase the file size of your Revit project. So if you no longer need a rendering, you can certainly delete it.
Now it will warn you, make sure that you're okay with doing that deletion, but you can delete it to help free up some of that file size. So over time you can decide just the ones you want to keep. If you like a rendering here and you actually want to use it outside of Revit, then what you can do is export it. So I've got this view opened up here. This is the high quality version of the rendering. I'm going to go to the Application menu, and then under Export we have an option for, gotta kind of scroll down here a little bit, Images and Animations, and I'm going to export an Image.
That will display a dialogue that looks a lot like the plotting dialogue. You'll get similar choices. You can do the current window, or you can actually even click here and choose Select and check any of the boxes that you want. Now keep in mind I'm exporting images right now, so if I check say, a 3D View or a Floor Plan, it's going to take that Floor Plan and actually turn it into a raster image. Now sometimes that might be useful to do that, but in this case what I'm going to actually do is uncheck Sheets just to kind of shorten the list a little and then scroll down, and notice that the renderings are listed right here.
So I'm going to check both of those boxes if I want to export both of them, or if I only want to export the one I can just check the one. And you can even do Save As over here and actually create a named list of views that you might want to export later. I'm not sure you need to that for rendered views. Now it will actually ask me that when I click OK here. I'm not going to save it, but it's got that one selected. So the next thing is the image size. Now here you really don't want to use this feature, the Fit to, because what it will actually do is it will rescale and resample your rendered image, and the quality will probably suffer for that.
So it's much better to click Zoom to and put 100% in here. That basically will mean no scaling. This will give you the rendering at the quality that you generated it at. Now down here you can choose what file format you like. I like PNG, so I usually choose that. JPEG can actually also compress your image and essentially throw away data or reduce the quality, so I don't usually like to use JPEG unless it's called for on the recipient end, but when I get to make the decision, I usually use PNG.
Then it's a pretty good idea to set the Raster Image Quality to match whatever you generated the rendering at. What we're trying to do is to get it to just export the image without changing it in any way. So I'm choosing PNG there, a lossless format, and I'm choosing the same image quality at 100%. Then all I have to do is click OK and it will export that image out to the location that we specified in the top of that dialogue. So that's one way that you can export from your project. The other way is to just simply include the renderings on a sheet.
So if I kind of look at my sheets here, I've got a A9 sheet here that's called 3D Views, and you can see there's already a 3D view on here and another one here. Well that's the actual live 3D view right there. You can place your renderings on here as well, and you place them the same way you would any other view in Revit. You just simply drag and drop that image and place it where you want it to go on the sheet. Now how big did it bring this image in? Well that gets us back to the resolution again. Now this is one of the reasons that I like to put the resolution that I exported the rendering at in the name of the image.
So you can see here that mine is 900 by 732. So I've got 900 pixels across this image to work with. If I want this to print at 300 DPI, that's essentially three inches in size. That's basically why it's sizing this the way it is. Now if you go back to this rendering and click on it, there are grips here and you could stretch it and change the size, but do that carefully because if you stretch it too much and try and make it too big, it's still only got 900 pixels to work with, so it's going to spread those pixels out over a larger area and the image will start to get fuzzy.
So if you really need it much larger, you'll probably want to generate another rendering where you add more pixels to that rendering so that you'll get a better quality output. So couple real quick ways that you can export renderings from your Revit project. You can either make them part of the sheet and print them right along with your document set, or you can export them as image files and then basically do whatever you want with those image files in other programs.
- Creating 3D views and 3D cutaway views
- Adding details to the model
- Creating and editing materials
- Working with the sun system
- Working with lighting groups
- Configuring render settings
- Preparing a cloud render
- Creating a walkthrough
- Rendering a plan