- [Voiceover] With the environmental conditions
established for our daylighting shot,
it's now time to apply some artistry.
We can adjust the exposure in order to achieve
a painterly effect.
Let's do another test render,
just to remind ourselves what the default
auto exposure looks like,
and from here, we can go into the render stack,
and here's the image that we just rendered,
and next to it is an image that we rendered
in the previous movie.
Let's select the new one, and adjust its exposure.
So over here on the right
is a circle that's divided into black and white.
That's the post-render options.
Click on that.
And here we can adjust the exposure,
and if we turn on fully-interactive display,
we'll see it update in this window, as well.
So let's choose a different exposure method.
Instead of the view exposure filter,
I'm going to use linear,
and turn off auto exposure,
and we can adjust the exposure value now,
and set it to a value of negative .5,
and leave the linear coefficient at one.
Seems fine.
Down here, we can apply a tone map,
and turn on post-processing to do that.
We can put a filter over the lens.
We can also just adjust the colors
using curves or output functions.
Enable input/output function,
and then right-click on the filter icon
and choose Edit Filter.
And this is multi-filter,
not just a single filter.
You've got a profile tab,
but also a channels tab.
In the channels tab, let's disable red, green, and blue,
so that we affect all of the color channels equally.
The only one that's active is All.
In the filter editing area, we can zoom out
with control and right-mouse button.
Once again, to access the key points
on both ends of the curve,
we can flip the curve and then flip it back,
and now we can select these points individually.
Let's add some new points.
Click on the curve.
Go to Profile tab and click New Key Point.
Do that a few times.
We can then convert it to a smooth curve,
and do our tone mapping.
Be careful you're not continuing to create new points.
If you do, you can just select it and press delete.
I've worked a bit to edit that curve,
and I can see the result, once again,
in the render view.
Let's click OK to close that,
and we also close the Post Render Options for now.
Compare the version that I've done over here
with the default view exposure,
and you can see I've stretched the contrast quite a bit.
And that's a brief introduction
to using the tone mapping controls
in the post render options dialog,
and it concludes our chapter on lighting.