TUTORIAL: Getting started with Forest Pack part 3 (beginner)


Having completed the two previous parts, the render should look something like the render shown here. In the next step, we can add some colour variation to the bushes in the scene directly from within the Forest Pack interface. If we come back to 3DS Max you can pick any of the bush items in the scene. I’m going to start
with the ones on the right-hand side since they’re closest to the camera and
are going to be more visible. The easiest way for me to pick these is to find them
from here. Forest-bushes-right and hit okay. To make this effect clearer I’m just going to isolate them so we can just see
the bushes. We’ll do a quick before and after render. So this render will be the
bushes before we’ve added Forest Color Once the render is finished you can see the bushes without Forest Color being used. They’re all the same color essentially, there’s no variation. Now let’s look
at how to change that so we’ll come back into here and I’ll start with the
smaller bushes. Over here in the Materials rollout you’ve got a few useful settings, but the first thing you need to do is to click Optimize
Materials. That’s going to automatically add a Forest Color map to all the Diffuse slots for this object, and that’s necessary in
order to use this Color Tint feature. It’s also going to automatically change the
aterial type to suit the render engine that you’re using. I’m using v-ray
here and I’ll leave that at its default. If you converted standard materials it will speed up your render time substantially. Let’s click Optimize. It’s warning me it will modify all the relevant materials in the scene. That’s what I want to do so click Yes. It’s very fast and it’s done already. Once you’ve done that, you can use these settings up here.
What will happen is it’s going to apply a Color selected at random from
this gradient and and it’s going to affect the hue and the saturation in
accordance with the Strength that’s picked from this range here. Because
it’s on 0-0 it’s it’s not actually going to affect the object at the moment if I
turn this up say to 80 now it’s going to pick a random strength from between
those two values. Let’s also change the color to something that’s quite strong
so we can see the effect more clearly. I’m going to click on the gradient start
color and come to the RGB values and into something like 199 187 and 84. It’s
a kind of yellowy green. I’m gonna to go to the gradient end swatch and change this to something like a deep maroon or red so 49, 0 and 14. That’s gonna be really quite
obvious when we render it so let’s do a quick test render on this. Once the render is finished you can really see the difference in these smaller bushes. we’ve
got a very very deep sort of pinky red one down here and some very green ones
here and here. You’ve got real color variation in that. Let’s do
the same thing to these other bushes. Minimize that and click on the other
Forest object. So, the same thing, first off it needs to be optimized so click
Optimize and then OK. Secondly we need to change the random strength to enable the effect and then change the color you could leave the colors but let’s change them
to something more obvious. Use 199, 187, 84 and 49, 0, 40. Good strong colors.
Let’s do a second render now so we can see the difference … Okay so now we can see the original
render here no forest color and if I just drag this over you can see the
change. It’s a little bit subtler on the taller bushes, I think becausae the maps are so much darker anyway, but there’s real color variation between those
objects.If you’re interested in finding out more about how Forest Color
can add variation including how it can add different tints by leaf rather than
by object and how you can randomize bitmaps as well as just colors, then it’s
well worth looking at the Autumn Park Tutorial that can be found on the iToosoft website. It’s in the forest pack tutorial page. That concludes this
tutorial, once you’ve completed it you should now be able to quickly setup and
use forest pack including using common area types, controlling distribution, and
transforms, using the library, custom objects, distributing on surfaces, and
finally adding color variations. As always, if there are any questions about the tutorials or any of the other techniques demonstrated here please feel
free to ask in the forums. If you’re looking for more explanations or
advanced instruction on Forest Pack’s other features please go to iToosoft.com and visit our tutorials pages.

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