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When you're rendering 3D scenes from Cinema 4D and After Effects, things can slow down considerably, the more detail you add, the more anti-aliasing, ambient occlusion, and things like that that you add to your scene, the slower it will get in After Effects. So there's lots of things to consider, but there are a few little tips, in After Effects, that will help you preview a little bit faster. The first one is to make sure that your render settings in Cineware are as optimized as they can be. But if you have to render with the final renderer, maybe it's really important that you see the quality as it's rendering, a few tips that can help you.
The first thing is I usually have my resolution downsample factor pop-up menu set to auto. And then, if I choose 50% in terms of resolution, I can then only render every second pixel. Which will speed up my work flow a little bit. So if you want to see good quality but a smaller size. That can be a good compensation to help you render your frames a bit more quickly. You should get them rendering quicker at half resolution than you would do at full resolution.
Then, the other thing that I do is I hold down shift when I do a RAM preview. And what that does is it loads every second frame into RAM, depending on your shift RAM preview settings. But the default is to render every second frame into RAM. And you can see that displayed down in the timeline, every second frame being rendered in there. And that's going to speed up my previewing as well. And every second frame is usually enough for me to be able get the timing that I want to see, so if I just preview that a little bit.
Okay, a little bit staggery, but it still plays back in real time and allows me to see the timing of my animation. Okay, one more thing, well two more things actually, if you're going to fast previews preferences, there's no point really using fast draft because at the moment Cineware doesn't use the OpenGL renderer. So the only option really in the fast previous preferences is to make sure your adaptive resolution limit goes down as low as possible. If got it at 1/16th and I'm going to click on Okay.
And that means that if I do things like move the layer around. Instead of having to wait for it to update, it will drop resolution. Now, you'll notice that there's a bit of a problem. If you do try and move Cinema 4D layer, it will freak out. Because the layer size must match the composition. And use the default transform file transform values. So that's not really a good idea. But basically, if you do something that would cause the file to re-render, for example add an effect or adjust an effect setting, then dropping down to sixteenth of a resolution, will help keep things moving.
One more thing that you can do is you can use this little check box here to change the quality of the layer. At the moment it's rendering in best quality. If I click on it twice, I can go to draft quality and you'll see that there's not much of a visible difference between draft quality and best quality. If I was outputting my final scene, I would always check it in best quality but while I'm working I can quite happily work in draft quality.
Incidentally, that's exactly the same place that you can choose between Bicubic and Bilinear sampling which will affect how some things scales. So that's another new feature of After Effects CC. You can choose between Draft mode, Bilinear, and Bicubic sampling.
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