what's happening ladies and gentlemen
this is Minh from Architecture Inspirations
Today i'm going to show you 10 tips to render faster
Let's get started
I often get asked what computer parts should be upgraded to render faster
but as we all know
upgrading your computer is not cheap
and there's a lot you need to consider before buying
which can be overwhelming
so i'll save that topic for another video
in this video i'll show you some tips to render faster
using your current setup
also I will be using Sketchup and Vray in this video
but most of the tips can be applied to other 3d and rendering softwares as well
number one reduce poly count
the first thing to know is that the more polygons you have in your model
the longer it will take to render
in other words the more complicated the scene the slower the render speed
here you can see I have two chair models
one has more polygons than the other
and when I rendered these chairs
the more complicated model took 38.2 seconds to render
and the more simplified model took 35.9 seconds
that's a 5 decrease in render time
this would make a bigger difference when you're dealing with larger projects
to reduce the number of polygons of existing objects
you can use Skimp or Transmuter
I'll leave the links for those videos in the description box below
However remember that whenever you reduce the poly count
the model will reduce in quality
and its texture might get messed up
but if we are far away from the models
we cannot notice the difference
so when you're setting up the scene
consider using high poly count models when they're closer to the camera
and for objects that are farther away you can just use lower quality models
number two use proxies
If you do decide to have lots of complex objects in your scene
it's a good idea to use proxies
to do that you can select the objects which you want to turn into proxies
then click this button
then just adjust the setting however you want
and repeat this process for other objects which you want to turn into proxy
as you can see the original renderer took 44 minutes and 41 seconds to render
and with the proxies it reduced to 43 minutes and 54 seconds
this is not a huge improvement but it still reduce the render time
and this is even more useful when you're dealing with bigger projects
besides increasing the render speed it will also make navigating around the model faster
because it will reduce the sketchup file size
after converting objects to proxies
remember to remove the original components
by going to the components tray then click here
purge unused components
this will remove the original models and only keep the proxies
before i save the Sketchup model
you can see the file size is about 122 megabytes
now I can save it
and the new file size is 118 megabytes
and again this is even more useful when you're working on bigger projects
if you want to learn more about proxies i suggest you watch this video
although it's a little outdated it's still quite useful
also consider using the Chaos Cosmos library
which provides high quality proxy render ready models
number three reduce texture resolution
for example here i have a wood material at two different resolutions
one at 1k and one at 4k
I will apply the 4k material to both the wall and the floor
then let's do it test render
as expected you can see that the material looks really good
now I will go back and apply the 1k materials to the wall and floor
then render it again
as you can see the original image took 1 minute and 7.9 seconds to render
but the new one only took 38.5 seconds
however the material on the floor looks really blurry and less quality
but if you look at the wall far away
you can see that the change in quality is not very noticeable
this is why it's a good idea to consider using high resolution maps
only for materials that are up close
and for the rest of the materials in the scene
usually 1k to 2k resolution
is good enough number four optimize materials color
one thing that not everyone knows about
is that when the material is completely white
it will increase the render time
for example here i have a kitchen scene
with lots of wire materials on the cabinets
you can see that the cabinet color is 100 white
now I will make this white color a bit darker
not too much that is gray but make it a bit off-white like so
you can see that the original scene
with 100 white material rendered in 20 minutes and 16 seconds
but the second scene renders in 20 minutes and 5 seconds
although it's a small improvement
this is even more useful if the scene is more complicated
number five minimize displacement
when you have learned about displacement maps
you will often want to use it on every material because it makes the material look amazing
however displacement maps often slow down your render a whole lot
so consider using displacement maps only wind is necessary such as materials like bricks
but for materials like wood floor stucco wall etc
then bump maps are usually good enough
number six optimize lighting
here i have a view which renders in 44 minutes and 41 seconds
you can see that this part is a bit burnt
so i'll adjust the camera parameters to make it a bit darker then re render it
as you can see this new image looks darker
but it's faster to render
that's because if the image is too bright
then the highlight burn areas can cause accepted render times
this is why it's important to optimize the lighting in your scene
and if the image is a little too dark
then you can always adjust the exposure in the VFB window after it's rendered
number seven noise limit too low
when I'm about to do the final production render
I usually increase the quality settings to high
with the high settings this scene renders in 44 minutes and 41.9 seconds
however when we set the quality to high
you can see that the noise limit is at 0.01
which is the reason why the image looks quite smooth
however the lower the noise limit the slower the render
a trick that we can use to decrease the render time
is to increase the noise limit
for this case i'll increase it to 0.05
but this will result in a lot of noise
so we will turn on the v-ray denoiser
as for the settings I'll keep it at default
and with the noise limit at 0.05 and the denoiser turned on
it took only 9 minutes and 56.5 seconds
that's a huge improvement
but let's compare the two renders
from afar you can see that the two renders look quite similar
but as we zoom up close you can see that the right one has a lot more noise in the render
this is because the denoiser is still turned off
so let's turn off the comparison
and double click on the second render
now it looks smoother
and if we expand the right flyout panel
we can compare the denoiser when it's turned on and off
as you can see the noise is completely gone
the 9-minute render now looks even smoother than the original render
which takes 44 minutes
however a setback for this is sometimes that the noise is too strong
which can make some parts of the scene loose details
so to fix
this you can adjust the opacity of the denoiser here
by decreasing the opacity
you will add some noise back in the render
but also bring back some details
number eight don't use depth of field settings
when I want to create a depth of field effect
I usually don't use the depth of field settings in a camera tab
instead I will use a z-depth render element
which will allow you to create a depth of field effect in post-production
here you can see that when i use the depth of field effect
it takes 18 minutes and 31.4 seconds to render
but with the z-depth render element it only takes 12 minutes and 45.6 seconds
of course you will have to spend more time in post-production to create a depth-of-field effect
but there are several benefits when using z-depth
one is that you will have the original image without the depth of field effect
and with the z-depth render element you can control which area of the image you want to focus on
if you want to learn more about how to do this in details
i suggest you watch this video on how to use render elements
number 9 render elements
this takes me to number 9 pick and choose your render elements
before you render only add the render elements which you plan to use in post-production
because each one of them can add more time to your rendering process
here you can see the one with lots of render elements took 24 minutes and 8 seconds to render
compared to 16 minutes for the one with no render elements
so for me i usually add the previously mentioned z depth
i also use the actual texture render element
with a dirt map for ambient occlusion
and also other render elements such as material id
diffuse light mix etc
and finally number 10 use chaos cloud
i've mentioned chaos color before in this video
it's basically a cloud rendering service made by chaos group the developer of vray
to use it you can set up your scene for final production render as usual
then click this drop down button and click on the cloud render button
which is also available on the vray toolbar
next you should see a web page open where you can submit the render
and here's where you can keep track of the render's progress
now you can wait for the render but in the meantime you can still use your computer to work on your project
once it's done you can see the information for on the right side
such as the amount of credits spent and the render time
which in this case is 27 minutes and 42 seconds
this is a huge improvement compared to when I rendered with my pc
which took 44 minutes and 41.9 seconds
that's about a 40% decrease in render time which is amazing
and if you're happy with the render you can download it here
the cool thing is that if you have a scene with multiple views
you can render them all with chaos cloud
if you click on the batch render button
Vray will upload all of the views in your scene at once
as you can see Chaos Cloud is not only really fast
but you can also render multiple images at once
and in the meantime you can still use your computer to continue working
this has been the greatest game changer for me
so if you want to try it out you can use this link and sign up for 20 free credits to test your render
and those are the 10 tips to help you render faster
if you're looking for more tutorials i would suggest you take a look at this class on skillshare
who is also the sponsor of today's video
Skillshare is an online learning community
with thousands of classes and creative skills like design illustration and many more
the premium membership will get you unlimited access
so you can join any classes and communities that you like
but as part of the sponsorship
Skillshare has set up a one-month free trial
for the first 1000 people who join
so you can take all of their classes complete for free
if that's something you're interested in
then go to this link here
i'll also leave a link to a few useful classes that i took
one of them is learn sketchup and v-ray beginning to advanced by Taneesh Patel
this is a comprehensive class with four parts
that walks you step by step on how to build a house in sketchup then render with vray
if you're looking for a similar tutorial for another software
then there's a class called create photo realistic interior renders with 3s max and vray by jack denim
there are also many more classes and communities that you can join
again the first 1000 people who use this link can join skillshare today for free
anyway that's all for today guys leave a like if you enjoyed the video
comment below and let me know if you have any questions
stay inspired guys and i'll see you next time