Page 55 - 3D World - October 2017

TuTorials
Simulate a Ghost Rider transformation

AnimAte the
17fiRe RAte
You have to decide which
frame the fire starts to show
up and how fast. Also, I
would suggest some smoke
before the actual fire appears.
You have to change two
settings for that. First, in the
FumeFX node under the
Output tab, change Start
Frame to whatever you want.
Select your source object
and animate attributes like
Fuel, Smoke, Oxygen and
Temperature to set exactly
how and when the fire starts,
and simulate again.

noise
It’s always worth
adding small,
sublt variations
to everthing in
cg work, from
surface texture, to
particle motion.
Even motion that
should be uniform
will have slight
deviations.
cReAte SPARkS SPARkS mAteRiAl
18 Using the third map, we’ll generate sparks to 19 Create a new V-Ray Mtl Material or a V-Ray Light
show some fire flying out. Select the actor model (ideally Material through the Hypershade. Change the colour to
a version without nCloth simulations) and go to the light orange and play with the intensity – find a setting
nParticles menu. Click on Emit from Object. Once done, that works with your exposure settings, if making a Light
change the Emitter Type in the Emitter node to Surface. Material. If you’re making a V-ray Mtl Material, turn on
Go all the way to the bottom and in Texture Rate, input the Self-Illumination slider and set the colour to orange.
the third map and check Enable Texture Rate. Select the nParticle node and apply the material to it.

A teXtuRing PRoblem PlAnAR mAteRiAl mAPPing
20 Now, I got into a problem with texturing that I think would be helpful 21If you want to project an image on a mesh without
to discuss for a bit here. You might not run into this particular sticky situation having to mess with the UVs, create a new material. In the
if you did some pre-planning, which is actually something that I did, but diffuse channel (or any other) import a texture. Select
unfortunately it got lost over the four-month period that it took me to do this. File from the Texture Creator, right-click and pick Create
Anyway, the problem is that I used Spherical Projection before I created the as Projection. Now, you can project your image without
maps but I wanted to put a planar map as the diffuse for my actor model. messing up the UVs. Once placed, delete history or you
That’s a problem. can bake your texture into the current UVs.

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