v-ray vision is chaos's real-time
rasterized viewer and it comes with
v-ray 5 for rhino
with it you can explore your scenes on
the go create quick previews and
animations and much more now we will
explore some of the possibilities that
vision gives us
let's start by setting up a generic gray
material for an override and turn v-ray
vision on
now that our scene is loaded into vision
we can see that everything is shaded
with our basic grey material
if we move our scene in rhino everything
updates accordingly in vision
we can orbit our model
pan and zoom and switch through
different views
if we tweak the exposure value in the
camera rollout in v-ray's render
settings the exposure and vision will
update as well
if we can't get the exposure quite right
v-ray can do the job for us simply click
on the little sun icon in vision to turn
on auto exposure and you will always get
a perfectly exposed image
now
let's turn override off so we can see
our actual shaders vision will take a
moment to load all the shaders
a big strength of vision is that we can
edit our model and see changes rendered
in real time
let's open chaos cosmos and place some
assets in the scene go through the
categories in cosmos browser and find
vegetation
then import an object with the import
button and close the browser
as you can see the tree appears
immediately in vision
now we can move them in rhino rotate
them scale them and see how they look
rendered out
this makes it really fast to set and
tweak our environment
i've already prepared some vegetation
and assets for the scene so i will
delete this tree and unhide what i've
set up in advance
now we can continue exploring
let's move over to vision and see what
we can tweak directly
click on the gear wheel icon and we'll
see the first set of options
this will determine the quality of our
image and adjust the performance
every cosmos asset has levels of detail
stored in it also known as lods
there is a basic version of each cosmos
asset a medium detailed version and a
realistic version and they can help us
have a more interactive experience
next we can adjust shadow quality which
will determine the level of detail when
calculating shadows
if we choose low quality shadows vision
uses a lower filtering setting for the
shadows and the shadow map is down
scaled while we interact with our
project giving us better responsiveness
medium shadow quality uses better
filtering but still has some
optimizations
the high setting gives us the best
filtering setting for shadows and it can
also simulate soft shadows by taking
into account the sun size parameter
last but not least check high quality
cosmos assets
to see the difference that this makes we
need to reset the live link between
rhino and vision
when high quality cosmos assets are
switched off vision will use the medium
lod for every asset that is close to the
viewer and replace the assets that are
further away with the lowest lod
this way we have a more responsive
experience
when we turn high quality cosmos assets
on
every cosmos asset will be represented
by its highest lod
just click on the render button in the
asset editor to break the link and click
on visions icon from the toolbar to sync
things again
check out the leaves on the trees
ones that are closer to the camera have
a lot more detail now and they look much
nicer
next are exposure controls which we can
adjust separately from v-ray's ev if we
want to quickly explore some different
scenarios
after that are the navigation controls
we can orbit pan and zoom but vision
comes with one additional option
fly mode
enable this by ticking the checkbox or
using the tab key on your keyboard then
adjust the speed controls so that we
move slowly through our scene
now we can move around our scene and
explore the space from different angles
just like in a game with the difference
that we can fly up and down
okay let's hit c to reset the camera
position
this returns vision to the initial
camera
on the right we have color corrections
which gives us the option to use srgb
color space and if we want we can apply
an asus curve for a more contrasting
look out of the box and also adjust
exposure contrast saturation and more on
the go
when we are happy with the adjustments
we can always export them for later use
when we reopen the scene or share it
with other people
the last icon is where save and export
settings are
let's open them and see what we have to
save a shot from vision first we need to
select a folder and a name for the image
after that we can choose the image
format for this case the default png
works great
the next option is whether we want to
save exactly what we see from the vision
window or if we would like to use the
project's resolution which is set in
v-ray's render settings
for this one i will use the default
option from vision window if we need to
export a larger image we can simply dial
and scale for our render
now all we need to do is click export
and the image is saved
still images have their use but
sometimes we need to create whole
animations
vision can help us with this and it's
quick and easy
to set this up let's break the live link
between rhino and vision again
in v-ray's render settings enable
animation
this was set up with the default rhino
tools in advance
now when we start vision we can see
there is a timeline on the bottom of the
window
before we click on the preview i want to
show one very important setting that i
intentionally omitted because it's more
visible when it comes to animations
temporal anti-aliasing
i will disable it for now and start the
animation
notice that all the edges are jagged
especially those on the facade panels
if we enable temporal anti-aliasing and
play the preview again the animation is
a lot smoother
this is because the setting enables a
higher quality anti-aliasing method
now we can stop the preview and find out
how to save it
the export process is almost the same as
saving a still image we need to choose a
folder and a name for the sequence
i will also change the resolution mode
to from project and dial back the
resolution multiplier to 1 since we
don't need it in this case
then make sure to check the export
animation option
also if temporal anti-aliasing is
re-enabled we can use the frame delay
option increase the number to something
like 30 up to 60 to ensure each
animation frame is sampled enough
in my case i'm using the animation as a
preview so i will leave it as it is
now click export and leave vision to do
the rest
you