How to solve the huge amount of noise in the novice 3DMAX vray rendering 50

1. When rendering renderings, there is noise in the picture.

I want to reduce the display of noise in the image. At this time, you need to set it in the VR renderer, which can be set and adjusted by yourself.

2. In the 3DMAX software interface, find the above render settings button, or the shortcut key.

f10”。The Render Settings page pops up, and you can find the VR renderer settings in the Render Settings page.

3. On the render settings screen that appears, click the VR settings tab. Find Global Deterministic Monte Carlo in VR settings.

Options, this is the option to control noise.

4. Some VR versions of the noise adjustment are directly displayed, and some higher versions of VR are in the advanced settings, click the default mode in the global deterministic Monte Carlo options, and switch to the advanced mode.

5. In advanced mode, you will see a noise threshold under the global deterministic Monte Carlo option, which is to adjust the noise, this value is that the smaller the noise, the less and less obvious it is. By default, you can reduce the noise.

6. Complete the renderings.

Reasons for the existence of noise:

One. vray uses a progressive approach and has a short time setting.

2. The value of the noise threshold or color threshold is too large.

Three. Anti-aliasing is not turned on.

Four. The noise cancellation mode used needs to be supported by the graphics card, resulting in a failure of noise cancellation, or an error in the noise reduction effect.

Reason 1 for noise in 3DMAX rendering: The image size is too low, resulting in unclear noise after rendering.

Solution: If the 3DMAX material pixel is not high and is still enlarged, then the size of the picture is relatively large, there will be blurry, you can process the texture in PS, and re-assign the model material to effectively avoid blurring and noise after the model is rendered.

Reason 2 for noise in 3DMAX rendering: The main light source does not subdivide enough

Solution: The subdivision of the main light source is generally about 20, not too high, because this will directly affect the rendering time. The subdivision of hemispherical light and spherical light is generally at least 30 or more.

Reason 3 for noise in 3DMAX rendering: Insufficient material subdivision

Solution: Generally speaking, the main materials in the scene, such as flooring, latex paint and material subdivisions close to the camera, will be increased to about 20, of course, if your machine configuration is good enough, you can add it, and the effect is also positively correlated.

Reason 4 for noisy 3DMAX rendering: Emissive maps and light caching

Solution: Generally speaking, the maximum ratio to the minimum ratio is -3-1 is OK, and hemispheric subdivision and interpolation sampling is about 50. The subdivision of the light buffer is from 1000 to 1500, of course, the larger the value, the better, pre-filter check, set to 20.

Reason 5 for 3DMax rendering is noisy: DMC sampling

Solution: Adaptive number, noise threshold, minimum sample 16-20.

Reason why 3dmax rendering is noisy is 6:

Ambient light obstruction (AO) is the ability to produce shadow shadows at the place where the structure of the model is transformed, the more complex the structure, the more shadow shadows (in the form of lines), the larger the value, the more solid the shadow, and the smaller the value, the more virtual the shadow. This causes renderings to look blurry after rendering.

Resolution. Press F10 to open the Render Settings panel and find the GI.

Select Ambient Light Blocking (AO) and adjust the value to.

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

Note: The specific parameters are adjusted according to your own renderings. After turning on AO, the effect is better and the structure is clearer.

:3DMAX is rendered with vray, and the noise can be removed in the following way: Turn off the gi first, and see if there is still noise in the rendering.

If there is, it's because of the lights. Adjust the subdivision of the light. Or save it in the glow map and then render it.

If it's not for the lights, turn the gi on, turn up the rendering engine's subdivision and interpolation sampling values.

1. The subdivision of the light should be appropriately increased, and the general large picture should be more than 15 (except for complex materials to prevent slow rendering).

2. The accuracy of the material tuning, when there is a large noise in the new model, try to modify the problematic material.

3. The rational use of lighting, the unnecessary lights should be removed as much as possible, and the more lights in a space, the more noise.

Fourth, the model should be as simple as possible to reduce the model garbage.

The above is a personal drawing experience, I hope it will be helpful to you!

There are three reasons for noise: One is that the subdivision of the light is not enough, and the subdivision of the light in the scene is adjusted to about 25, whether it is the vray light or the light that comes with the max, the second is that the subdivision value in the vray renderer is not enough, and the subdivision in the glow map is generally adjusted to 60, and the subdivision of the light cache is adjusted to 1200, but I am talking about the drawing settings, and it is normal to have noise in the test rendering The third is that the subdivision of the material is not enough, and the main material subdivision in the scene can be adjusted to 16 Hope it helps.

Setting the interpolation sample to 50 in the glow map will resolve dark spots and noise. If you give a VR light, then the light subdivision is adjusted to 20 (the light strip VR light can be turned up without being turned up). Color mapping is best given (exponential), can prevent **, as for the following multiplier needs to consider the brightness of the scene light source to decide, there is no unified standard, if you have not tuned it you can use the parameter 2,1,1 to try it.

Hope it helps!

Image Sampling Adaptive Subdivision Catmull-ROM Emissive Map Model Subdivision Imputation Sampling Increase Generally 50 just pull.

Light buffering subdivision is around 1400.

It's much easier to do this and pay attention to how your large area of light is not blocked.

For example, the light outside the door or window is deliberately made a little smaller than the opening.

Alternatively, if there is light that penetrates translucent materials such as glass or curtains, temporarily remove the glass or curtains when the light runs out.

Pay attention to the subdivision of the lights, sample the value, debug it yourself, find out how it feels, and everybody comes over like that.

Probability lights to see if they are off...

Reason 1 for the grainy noise in the 3DMax rendered image:

The 3DMAX material has too low a pixel size, resulting in grainy noise that is not clear after rendering.

Workarounds for 3DMax rendered images with grainy noise:

Similar to the floor, the 3DMax material pixel of the wallpaper is not high, and it is also enlarged, so the size of the picture is relatively large, and the blurring phenomenon will occur, so you can process the texture in PS, and re-endow the model with the material can effectively avoid blurring and noise after the model is rendered.

Reason 2 for the grainy noise in the 3dmax rendered image:

After the 3dmax model is rendered, the 3dmax file is saved in different formats, which may cause the renderings to appear grainy and noisy.

Workarounds for 3DMax rendered images with grainy noise:

If it is a JPG, select the highest quality level, and we recommend that you use TIF or TGA lossless compression. It can also solve the problem of grainy noise in 3dmax renderings.

Press F10 to turn on VR, then turn on Global Illumination, turn on Advanced Mode, and cancel the probabilistic lights, and you're good to go.

C4D renders are noisy.

Most of the time it's because the sampling is too low.

C4D rendering is slow, and you can use Dumbcat desktop cloud and cloud rendering.

1. In the renderer settings, increase the environment absorption and sampling values.

2. In the light, change the minimum sampling value and the maximum sampling value in the projection to a larger value.

3. In the rendering settings, change the renderer to "physics", and change the sampler in physics to "increment", which means that the renderer will continue to render, and the effect will get better and better, you can let it render for half an hour, or longer, until you are satisfied.

However, the C4D renderer also has a big drawback, if you add other values to reduce noise, it will lead to a large increase in rendering speed.

You hit the vray area light source, the English name is vraylight, this light source, if the light subdivision is too low, this kind of small black dot will appear. The default subdivision is only 8, which is relatively low. If you want to render the final image, then it is recommended to set this value above 25, for example, to 32, and the small black dots will basically be gone.

However, the higher the value, the slower the rendering, so when testing, just use the default one.

Hello! The quality of vray rendering is good, but one of the most troublesome things is that it is prone to noise. After putting on the vray light, there is a subdivision parameter at the bottom of the vray, adjust this parameter to 25, the default is 8, and it will be better.

In addition, under the parameters panel, under the glow map rollout, the bottom two columns on the left model subdivision and interpolation sampling, both of which are adjusted to 50, will be much better.

If you want good results, the price is time, but these parameters are not too slow. If you try, it's good to raise the general breakdown value to 18.

It only represents a personal opinion, don't spray if you don't like it, thank you.

Why is the rendering noisy?

Check whether the light rendering refraction setting is too high, resulting in infinite ejection of highlights and causing light spots, generally set the number of reflections to "2" and check the max depth setting to restore the default value to solve the problem 2 3 There is also a situation, when you test the small picture, everything is normal, and when the large picture is officially rendered, there is a noise spot, then in Expert Mode, turn off the material filter and compatible with the camera space3 3 old versions, the V-ray renderer "Probabilistic Light" may also cause unexpected light spots, turn it off to solve the problem Step 1 2 When you encounter the noise problem caused by the mismatch of lighting settings, it still persists after turning off global illumination, at this time, you can try to increase the sampling subdivision value of the light appropriately and check the option to store the luminous map 2 2 If it is a problem of indirect lighting, you can solve it by appropriately increasing the subdivision value of the light cache.