Go to the Render Setup to adjust animation
settings in Corona. Make sure, you have Corona Render set up. ` Now, I will use the Active Time Segment option. It is exactly the number of frames through
which I have my camera animated, let me show you. Ok, so it takes 45 frames. Now, I will go back to the first frame. Next, make sure you have the correct output
size set up. Then, we need to choose the location where
our frames will be saved. Check the ‘Save File’ option and choose
the location. I always create a separate folder for each
shot, we can call it ‘Shot_01’ for instance. You can name it whatever you like. I always choose the .exr format as it saves
more information than .jpg for example. 16bits/Channel. Ok, next go to the scene and you should set
one of the limitations here. Otherwise, the image will render until you
stop it. And you definitely don’t want to stop every
frame manually in an animation! So you can either choose pass limit, noise
level limit, or time limit. This time, I will set up a noise level limit. Typically, I use 5% but this is not a rule. It’s always best to test one of the frames
first to know the best value. Sometimes you will need less noise, other
times higher value will be good enough. Now, Denoising. I always use Corona High Quality. Similar situation with the Amount value, I
will use 0.5 but it’s always better to test it first as it will vary depending on the
scene. Remember that it’s not good to use too much
denoising as you will lose too many details! Ok, next go to the Performance tab as we need
to set up the Global Illumination. By default, it is Path Tracing for both Primary
and Secondary Solver. But for animations, as the time is crucial
here, we will use UHD Cache as a Secondary solver because it typically speeds up rendering. Talking about render time, Rebus Farm is the
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points. Ok, let’s go back to the GI setting… And now, we need to adjust the UHD Cache settings. We need to change the preset to Animation
(flicker-free). Ok, now I will show you two methods depending
on the scenario we have. Up to this moment, everything is the same
for both cases. The first scenario is the safest option when
we have an animation with moving lights or objects. In this method, we use settings as they are
by default, so we use ‘Calculate from scratch’ for ‘precomputation’ and ‘Discard’
for ‘After render’. Now, when using this mode, the cache will
be always calculated independently for each frame. By the way, we can of course add Render Element
in both scenarios if we want to. Anyway, we can hit the Render button. Ok, let’s focus on a few important things. After the ‘Preparing geometry’ stage is
finished, and Computing GI starts, we can notice that the UHD cache precomputation begins
to count up. The stage took 9 seconds in this case. What does it mean for us? For this animation, we will spend almost 7
minutes just for the precomputation stage. It may not sound a lot to you but imagine
that 45 frames of this scene are just a part of a whole animation! And after that, the renderer is starting to
the actual rendering of the image. Why is it important? Because we can save up lots of time if we
only can reduce the time of precomputation. Good news! It’s possible. And this is the second method! By the way, during the rendering process,
all the files will be saved in the selected previously folder. Now, the time for the second method that we
use typically with the camera fly-through, without any moving objects or lights. This method is divided into two stages. Firstly, we want to calculate UHD Cache just
for the first frame and use the same file later for others frames as well. To do so, we need to change ‘After render’
to Save to file’. And then, choose the correct location for
the file. Now, we can use the trick and change the time
limit to 1 second, so the image will render only for this short period of time. And hit the render button! Ok, so the UHD Cache is calculated now. Ok, 1 second of rendering, and we’re going
to the next frame. We can cancel rendering as the file we wanted
is already saved. Let me show you. Here it is! We can delete this file as we need to render
it from scratch. And now, we’re going to the second stage. Let’s go back to the previous settings,
so let’s set the noise level limit to 5%. Next, in the Performance Tab, change ‘Precomputation’
to ‘Load from file’. We don’t have to change the path as it is
the path to the file we saved previously. And click the render button now! You can notice that after preparing the scene,
we have the rendering stage straight away, the UHD cache precomputation is 0 sec. Please note that you can try using the second
method with the moving objects or lights as in some cases it may perform well. The first method is safer though. Now, we need to wait for all the files to
be rendered and ready to combine into one video. To learn more about animations, download our
free ebook. Also, watch my other videos on this topic,
here are my suggestions. Bye, bye!
