Why are there noises in 3ds Max rendering renderings? Click here and CG Magic will tell you!

When you use 3ds max rendering renderings, the rendering results may often appear unrealistic. Some friends may ask how to make the 3ds max rendering renderings realistic?

Forget it if it is unrealistic. During the rendering process, there will be problems such as excessive noise in 3Dmax rendering.
 

Why is there noise in 3ds Max rendering renderings? Affect work efficiency. It’s also time-consuming and troublesome.

The editor of CG Magic has compiled several reasons and let’s take a look at the solutions.

1. Image size is too low due to

Solution:

The original 3dmax material pixels are not high, and they are enlarged. If the size of the image is relatively large, blur will definitely appear. You can use PS to process the texture, and then re-give the model material.

2. Lighting subdivision

Solution:

The subdivision of the main light source is generally around 20. It does not need to be too high because it will directly affect the rendering time.

The subdivision of hemispheric light and spherical light is generally above 30.

3. Material subdivision

Solution:

The main materials in the scene, such as floor, latex paint and material subdivisions closer to the camera, will be increased to about 20. Of course, if your machine's configuration is good enough, you can increase it even higher, and the effect will of course be positive. of.

4. Illumination map and light cache

Solution:

Generally speaking, the maximum ratio and minimum ratio are -3.-1, and the hemispheric subdivision and interpolation sampling are about 50. The light buffer is subdivided into 1000-1500. Of course, the larger the value, the better the effect. Check the pre-filter and set it to 20.

picture

5. DMC sampling

Solution:

The number of adaptations is 0.75, the noise threshold is 0.001, and the minimum sample is 16-20.

Generally speaking, if you set this setting, there will be no noise in the image, but sometimes there will still be noise if you do this.

The place marked by the red box is the key:

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This is where the problem lies. You can effectively avoid it by checking the first and second options on the right. The reason is very simple. The color value of white objects in the scene, such as latex paint, is generally around 250, which can effectively avoid noise.

Because when the white value reaches 255, calculation errors may occur during max rendering.

6. Environmental light blocking

Ambient occlusion (AO) can produce dark shadows where the model structure changes. The more complex the structure, the more dark shadows are generated (appearing in the form of lines). The larger the value, the more solid the shadow, and the smaller the value. The shadows also become fainter. A situation that causes the image to be blurry.

Solution:

Press F10 to open the render settings panel and find GI.

Check Ambient Occlusion (AO) and adjust the value to 0.8.

The radius is adjusted to 30. ④The subdivision is adjusted to 30.

Note: Specific parameters need to be adjusted according to your own renderings. After turning on AO, the effect is better and the structure is clearer.

picture

Notice:

3ds Max rendering is completed efficiently. Two methods are recommended.

1. Cloud rendering

Cloud rendering is faster than ordinary local rendering, because when a project is transferred to a cloud rendering platform, hundreds, thousands or even tens of thousands of machines can be scheduled to render simultaneously, which is equivalent to increasing the rendering time by multiples and speeding up the rendering speed. Reduce rendering wait time.

Xuanyun effectively solves the situation where designers have tight work cycles and heavy drawing tasks. Xuanyun can meet various personalized needs of users and launches private customized services. Xuanyun's professional technical engineers provide rendering services to all users 24/7.

2. 3ds max plug-in CG Magic

If you want to solve the problem of slow rendering or rendering failure, you can directly install CG MAGIC, a free plug-in for 3ds Max design.

Some highlight functions of CG MAGIC that may be used daily:

The cloud conversion function can quickly solve the problem of converting low version to high version.
One-click operation (one-click operation of various functions, reducing the software learning cost and entry difficulty.
Applicable to the whole process (model, material, lighting, camera, rendering Wait for the whole process to be applicable.
One-click physical examination (hundreds of physical examinations in the whole scene, one-click repair of abnormalities. For problems such as slow rendering here, you can also use this operation to directly perform one-click physical examination. Find out where the problem is and deal with it.
For the problem of insufficient memory, you need to clean the garbage in the CG MAGIC scene.
You can clean it regularly and target the cache. , or the problem of junk files, which requires junk cleaning in the CG MAGIC scene.

More functions of CG MAGIC can be downloaded and experienced, CG MAGIC Professional Edition! Lots of benefits.


 

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Origin blog.csdn.net/CG_MAGIC/article/details/133789060