Быстрые ссылки v-ray for 3ds Max Help What's New Installation and Licensing Tutorials Universal v-ray Settings Interior Render Settings


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Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help


Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]





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Tutorials



БЫСТРЫЕ ССЫЛКИ

 

V-Ray for 3ds Max Help



What's New

Installation and Licensing

Tutorials

Universal V-Ray Settings



Interior Render Settings

Basic Texture Baking with V…

Rendering Specific Objects …

Rendering Very Large Images

Rendering with V-Ray GPU …

Continue a Render with Res…

Using Custom Attributes to …

Setting Different Environme…

How To Make Glass

How to Make Paper

How to Make Hardwood Floor

Interior Render Settings

 

This page provides general guidelines for setting an interior



scene for render.

 

Overview

This tutorial

covers some

general

guidelines



for rendering

an interior

scene.

First, we will



go through

the default

V-Ray

render


settings that

are


optimized

for a large

variety of

scenes.


With their

help as a

starting

 

Technical Support



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Page Contents

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Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]













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Rendering and Post Processing

Tools


Cameras

Lights


Materials

Textures


Geometry

Render Elements

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Scripting

Rendering Concepts

Archived Versions

point, we will

learn how to

make quick

render


previews

that can be

used for

light


adjustments.

Then, we


will prepare

the scene

for a

production



render. At

the end, we

will consider

interior


animation

settings.



Tutorial Assets

To download the scene used in this tutorial, click on the button

below.

 

Still Image Render Settings



Step 1. First Render

1.1. Open the scene.

1.2. Assign V-Ray as the current renderer.

 

The default V-Ray Next settings generally work very well



for still images. They require very little tweaking for most of

the scenes and are a very good starting point.

1.3. Check the 

Override mtl

 

option in the Global



switches rollout, click the button next to it, and select a

default VRayMtl material. This way, we can start with a



Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

fast preview render.

1.4. We keep the resolution small (640x480) at this first

step in order to save render time, while making changes to

the scene.

1.5. Render the scene:

 

The first render is quite dark. Let's see how to brighten it up,



while aiming at a quick preview render. 

 

 



Step 2: Quick Preview

2.1. Since the

scene looks

too dark, we

would like to

brighten it a

bit. There are

several ways

to do this.

One is to

increase the

power of the

 


Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

lights.

However, this



will make the

directly lit

areas of the

image, like

the patch of

sunlight, too

bright, while

indirectly lit

regions will

remain


relatively

dark. Once

the materials

are applied to

the scene, it

will brighten it

up

considerably.



2.2. In this

case, we can

make the

override


material

brighter. Go

to the Material

Editor and put

the default

VRayMtl in

one of the

slots (it shows

up as being

used in the

"Environment"

in the


Material/Maps

browser).

Make the

diffuse color



Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

of the material

RGB (200,

200, 200).

2.3. Let's also

explore the

balance


between

noise and

render time.

For starters,

set the

Render time

(min) to 



0.0,

that is, no

limit in time.

This way V-

Ray will

continue


rendering until

either the

Noise

threshold is



reached or

until the 



Max.

subdivs are

reached.


Now, let's

start with a

high value for

the 


Noise

Threshold,

something

like 

0.1.

2.4. Render.

 

 


Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

We still have the same amount of light entering the scene, but it

is bounced around more and this increases the overall

brightness of the scene. 

At this point, you can adjust the ratio, color, etc of the lights,

while getting a fast feedback on the lighting. The render is very

quick, but the the image is grainy. 

 

 

Step 3: Reducing Noise



3.1. To reduce the amount of noise in the image, let's set

the 


Noise threshold to 0.05.

3.2. Re-render the scene. 

 


Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

The render time has increased (although it is still very fast), but

the image remains noisy. This is a good trade-off for quick

render previews.

 

3.3. Let's try to lower the Noise threshold even more and



see how this will affect the render time. We can try with

two different values: 0.01 and 0.005 (default V-Ray Next

value). 

 


Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

Noise Threshold: 0.01.



Notice how the noise has been reduced considerably and the 

 

   



decently fast for this scene. 

As a rule of thumb, decreasing the Noise threshold in half

will result in doubled render time. Be cautious with the

amount of zeros after the point in the Noise threshold value!

The default value of 0.005 will work very well for most of the

scenes. 


 

 

Step 4: Rendering with materials

4.1. Turn the

 

Override mtl



 option in the Global

switches rollout off. We set the Noise threshold to 0.01

here in order to preview the scene.

4.2. Render:



Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

Render time increases because V-Ray now goes through each

material in the scene and samples it. There is some noise in

the image, but overall the result is good. 

The scene is ready for the final render.

 

Step 5. Final Adjustments for a Production Image

We see that the default V-Ray settings work quite well for this

interior scene.

5.1 The only thing we need to do is to set the Noise

threshold back to its default value of 0.005.

5.2 For the final render, we set the resolution to 1280x720

pixels.

5.3 Render.



Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

The final render

 

Recommended Animation Settings

Traditionally, rendering of sequences could produce unwanted

flickering between frames, also referred to as "bubbling" or

"boiling". That is because low frequency noise changes across

frames.


V-Ray Next solves those issues with only two tweaks to the

default settingsLight Cache Subdivs, and Retrace amount.

While the suggested settings work for most cases (interior,

exterior, environments, pack shots, simulations), we suggest

you to test them across a set of representative frames before

committing to the final sequence rendering.

Should some visual artifact still be present, continue increasing

the two settings with small steps until they are resolved.

1.1 Make sure you start with the 

default V-Ray render

settings


. You can reset them easily by changing the

render engine to another and then changing it back to V-

Ray Next.

1.2 Set the image sampler to Bucket. Go to 



Render

Settings > V-Ray tab > Image sampler (Antialiasing) >

Type > Bucket. This is the preferred sampler type for final

renders, as it's marginally quicker than progressive, and

works more comprehensively with a number of ancillary

technologies.

1.3 Choose the 

Noise Threshold that best suits your

needs. A value of 0.005 will get rid of visible noise without



Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]



the need of post-render 



denoising

. To compare the two,

see the difference between the default value of 

0.01 and

0.005 in the 

example above

.

Notice that depending on a number of factors (scene type,



lighting, shaders, geometry), the same noise threshold may

produce 


marginally

 different results on a scene-by-scene

basis. Good tip is to always test before committing to final.

1.4. Go to the Light Cache settings of the 

GI tab

 and


change the 

Subdivs to 3000. 

Increasing Light Cache

Subdivs ensures that the Light Cache is well sampled, and

stable across frames. The impact on render time of the

higher subdivs is negligible compared to the rendering of

the actual frame, so this is a good general practice without

any particular drawbacks.

Please note, the calculation method of the Light Cache

needs to be "

per frame" (the default) instead of a path-

driven method, such as "



camera path".

1.5 Next, set the 



Retrace parameter to 8.0. This

parameter helps trace further rays where the Light Cache

solution wouldn't be good enough on its own. Higher

values make V-Ray trace more rays in the final rendering

of the image. It will prevent "splotching" at the expense of

some render time.

1.6 The changes are all done. Test the values with a

representative set of frames (ideally, the most complex

ones), and if no issue is present, you can commit to the

final render.

1.7 Should there still be visual artifacts within a single

frame, raise the 



Retrace Value. In case you spot small

changes to the GI solution across frames ("bubbling"),

raise the number of LC subdivs. A value of 

10 for Retrace,

and 


5000 for the Light Cache Subdivs should be the

highest values you would ever need to go.

 


Interior Render Settings - V-Ray 5 for 3ds Max - Chaos Group Help

https://docs.chaosgroup.com/display/VMAX/Interior+Render+Settings[21.10.2020 13:06:45]

Copyright © 2020 Chaos Software Ltd. All Rights Reserved. V-Ray and the V-Ray logo, Phoenix FD and the

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