Fusion ToolTorial - VolumeFog Part 2 Video Lecture | Eyeon Fusion: A Practical Hands On Course - Professional Skills

hi Eric from our software welcome to
this tutorial and intermediate overview
two fusions volume fog tool in the last
session we learned how to create simple
volumes and what the prerequisites are
for doing so let's have a look at
creating slightly more advanced fog like
lit clouds you've seen parts of this set
up in the last tutorial to better
visualize what's happening here I added
a small 3d setup connected to the volume
fog tool via simple expressions which
mimics the behavior of the volume fog
tool as we learned the Z extent of a
volume can be defined by an image
sequence let's have a look at this setup
here
a background tool 512 by 512 pixels
large set to white with full alpha to
polygon masks which are animated using a
perturb modifier mask this background
out this is how the result looks when
you press play
fast noise tool with the same pixel
dimensions and the seethe rate of one is
fed into a create bump map tool which is
then brought down in brightness by minus
0.5 please check out courseware 105 here
on our YouTube channel for an
explanation of this technique the result
is then used to drive displace tool on
the background set to X Y displacement
utilizing the red and green channels we
blur it just a tiny little bit and he
was a met ctrl to copy the Alpha Channel
of the displaced background onto the
fast noise the result looks like this
now let's connect this to our 3d
visualizer to get an idea of what it
will look like and also connected to our
volume fog tool
now bring up the number of samples and Z
slices to get a better result
also let's stretch it a little bit in x
and z
looking pretty cloudy already we need to
add a light now
we can adjust the position of the light
pretty easily in our 3d environment
however we don't see any changes yet in
the volume fog itself for that we need
to activate the dew lighting option in
the light tab let's also add a
background here and merge the fog on top
of that the first two options in the
lighting tab you might want to change
our density and scattering while density
just makes the fog appear thicker
scattering has another parameter it
interacts with which is a symmetry the
symmetry defines if the light rays
scatter more towards the light origin or
away from it
you
transmission and transmission color
define which color the light rays pick
up while traveling through the fog
reflection sets the amount and color of
reflected light
you
emission adds an overall glow type
effect to the fog
we could now for example animate the
volume fogs X offset to achieve moving
clouds or use our camera to fly through
the clouds
with a bit more effort in creating the
imagery for the clouds themselves you
can end up with results like this in the
next part we will talk about creating
animated volumes stay tuned