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3d Software Quick Fix Series

we are starting with a couple questions about reducing noise in Vray and merging objects in 3ds Max. Check it out!

Neilmani
Neilmani

Want to expand your knowledge of the 3D softwares on the market, but don’t know where to start? We want to help those budding beginners and intermediates out there by creating a quick fix guide, answering simple questions on how to use certain tools and create certain alterations within 3D softwares.

We’re kicking off this series by answering two simple but important questions.

Our first question is based on the 3D Graphics Program 3DS Max and the second question is on the rendering plugin V-ray (that can be used with 3DsMax)

Do you have any questions about softwares you use that you would like answered? Just drop us a message over on our Twitter or Instagram of Facebook and we’ll try to build it into our series!

Question 1 : How do I reduce noise in V-ray ?

There are several ways to reduce noise in V-ray.

We can play with sampling numbers, noise threshold, or by simply using denoiser in V-ray to reduce noise. Each process has different pros and cons.

V-ray offers a render element which shows the amount of noise present in the scene, it appears as VrayNoiseLevel in the software.

In this render element, black areas indicate no noise, white pixels indicate a great deal of noise in that area, and grey pixels indicate a moderate level of noise.


Method 1

Checking with samples using the VraySampleRate render element:


Visible in the form of Red, Green and Blue pixels, each color shows the work done by the image sample.


Blue shows the areas which reached the desired image quality with given primary samples.
Green shows areas which need more Anti Aliasing
Red This is the important section as it shows the areas that did not achieve the desired quality levels and are noisy areas.



To fix this, we need to reduce the red areas by raising sampling through different means.

The best solution to this is to decrease the amount to max a subdivs values or decrease noise threshold values

These settings comes under the V-ray tab:


Method 2:  Vray Denoiser

This checks the noise present in the beauty images and smooths them out.
Image can also be denoised using the denoise tool which is included in installation of V-ray.


There are three denoising engines to choose from - the Default V-ray denoiser, the NVIDIA AI denoiser (V-ray's implementation of NVIDIA's AI-based denoising algorithm), and the Intel Open Image Denoise.

  1. The Default V-ray denoiser: This is V-ray’s own algorithm which can use CPU or GPU to perform denoising.
  2. NVIDIA AI denoiser: Nvidia’s AI based denoising algorithm naturally works only on an NVIDIA GPU.

Regardless if your render was done on CPU, this denoise process will use a dedicated nvidia GPU for the denoising process.This is a faster denoise process but this process does not work better denoising render elements. It means there will be differences between the original RGB image and the one reconstructed from render elements that are denoised with the NVIDIA AI denoiser. It also doesn't support cross-frame denoising and will likely produce flickering when used in animation.

3. Intel Open Image denoise: The Intel Open Image denoiser works with your CPU device and does not use any GPU acceleration.

Question 2 : How do I merge objects in 3ds max?

This is indeed a very quick fix, that can be described in just one image below, but an important one all the same! You’ve been working on your project for hours, but the pieces you’ve created still haven’t formed the singular masterpiece you’re after:

In order to merge objects, all you have to do is follow these simple steps

Go to File > Import > Merge & Voila! Your objects are merged!

So there you have it! We hope today’s article helped you in some way to learn something new, and remember, if you have any questions that you’d like us to answer just drop us a message on our Facebook, Instagram or Twitter!


3ds MaxSoftware

Neilmani

Neilmani is a 8.5 years experience full time CGI artist from India, mainly working in look development and realism. He loves to drive, dogs (has 2 of his own) and traveling.