Vray white spots in render

Toggle navigation Polycount. Author: manuherrador. Stu2Prof polycounter lvl 6. Aug Does this fall under light subdivisions or a GI problem? Eric Chadwick admin. Hard to know without seeing your settings. It does looks like under sampling yea. Optimizing scene is a bit tricky to give advise as it depends a lot of what you have in your scene. Can you share a little how you set up your scene? Sorry about that. Would that be correct?

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In adaptive dmc set Thershold to 0. Also try to activate subpixel mapping, helps with light artefacts when you don't want to add samples and bake for 15 hours. Nox polycounter lvl 5.

vray white spots in render

First thing is to increase Irradiance map subdivs to Than maybe interpolation samples to 30 but this may eat some small details. First off turn off anti aliasing, it's not like game anti aliasing where it cleans up jaggies it's almost just a sharpen in Photoshop. Now to set up your DMC sampler settings. This is going to show you a heat map of how much work your DMC sampler has to do. You'll get this, basically you want your image sampler to work less and only in the right places.

Firstly increase your high subdiv number to 24 i'll explain in a second you can make it work less by increasing the threshold number from 0. This number controls the difference between each pixel. I can guess that your sample rate render element will be mostly red where as you want it like the image above, only red on the extreme contrast spots. Those red spots are so you how many samples it's using to clean up your image, for example the red spots are using the highest number you set 24 and the blue will be using the lowest 1 since we added a number of 24 your going to have 24 colors going from blue to red in your sample rate render element.

I'm doing this in two parts. Now your splotches are caused by your GI. I could just say in your irradiance map settings change your interp samples to 50 and be done with it but I'm going to just give you better settings for it all Change your second bounce pass to light cache.

Brute force is slow, inefficient and full of noise, its really only meant to be used by those who can mange it properly. That should do it :poly EDIT: oh and increase yoursub divs on each light to around Okay guys I tried out the suggestions. Sadly I have just finished a 7 hour render of an 8k image and after all the previews looking fine I have just woken up to a completely blue image.

I think it may be related to having tested out the sample rate pass earlier on even though I have it switched off now. I noticed that after I put it on the first time in smaller previews of renders it would not switch off unless I changed the secondary bounce settings.

This is really worrying because I have to do 2 renders of images before tomorrow and I cant lose another 7 hours on testing. Can someone provide some advice,? I'm a little bit worried atm. Thank you for your help so far. Below are the settings for the render:.This brief lesson is part of STEP-4 Final Settings and these topics could be part of final exam to take the certification. This effect is reduced if I render with my final settings.

The problem is reduced but not at all! Secret is coming!! I hope this could help you in many situations! To know more about these 2 important parameters, here is the official description from Chaosgroup:. Hemispheric subdivs HSph. Smaller values make things faster, but may produce blotchy result. Higher values produce smoother images. Note that this is not the actual number of rays that will be traced.

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Interpolation samples : this is the number of GI samples that will be used to interpolate the indirect illumination at a given point.

Larger values tend to blur the detail in GI although the result will be smoother. I have always found very useful tips on CG Blog……. Thanks a ton.

White dots/spots in Vray ...

I am saving so I can sometime purchase the full tutorials. Can I ask what resolution you are rendering at here. Pumping those settings up in a production sized render pixels and upwill not really help, but in fact will just give you unecessary rendering time. Thank you very much! This is the most helpful tip ever! Assuming fact, that rendertime increases rapidly, this is still the best way to finish your production. Name Required. Mail will not be published Required.

Share with your friends! Basically we have to see to V-Ray: produce more rays to spread into the scene. In many cases of splotches this trick helps in getting a more uniform GI:.

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Ciro Sannino - Auth says:. Dave Buckley says:. October 23, at pm.Wanting to join the rest of our members? Feel free to sign up today. Discussion in ' Help ' started by negroricardoJul 27, GFXDomain Forums. Welcome to Our Community Wanting to join the rest of our members?

Sign Up. Joined: Jan 25, Messages: 18 Likes Received: 0. Esanti asked me to reopen the discusion about the "ghosts" white dots and spots that apear sometimes in our renders when i asked him how to get rid of them in a particular scene that i was working on At the beginning in the vray world, i read something that i didnt understand and didnt believed: every scene is different.

Sometimes i thought it was a lie, but I must admit that it is not. Every artist have his work method, some preffer modeling everithing, some preffer to use more the displacement modifier Coming back in the white dots and spots, the truth is that there is lot of answers too. Could be the hdri map used, the subdivision used in the light cahce, the antialiasing filter used, the min and max used in the Adaptive DMC sampler, or even the Adaptive amount and the Noise threshold in the DMC Sampler.

But one of the fastest way sometimes, not in all the scenes is to use the Sub-pixel mapping and the Clamp out in the Color mapping All opinions are wellcome Joined: Dec 11, Messages: 63 Likes Received: 0. Thank You for starting this topic. I do not have an answer to the problem but I do rarely run into the 1 pixel white dots. Quite amazing that after all these years that has not been addressed in V-Ray. I'm curious to see ideas and solutions for that issue in V-Ray 2.

Joined: Nov 29, Messages: 41 Likes Received: 2. Arleth Member. Joined: Jun 1, Messages: Likes Received: 1. GFX New Member. Joined: Jan 1, Messages: 1, Likes Received: 3. Very low subd. GFXJul 27, Joined: Jun 20, Messages: Likes Received: 0. I face also this problem i dont have a lot of experience here is my first project it is from DigitalTutors Exterior Visualizations.

Removing splotches in Vray Render

I followed all the steps about the rendering settings but i ended up with this. Joined: Feb 12, Messages: 28 Likes Received: 0.

Could be using photon map as second bounce Arleth I know that the mountains look fake but i had spent so much time and i couldnt spent more because of the school exams arh. Joined: Jun 18, Messages: 65 Likes Received: 0. I used to get this a lot when I was using caustics. Then I found Solidrocks and I've never had the problem again.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Blender Stack Exchange is a question and answer site for people who use Blender to create 3D graphics, animations, or games.

It only takes a minute to sign up. Note that as of 2. There are also some tricks you might be able to do with your materials, but it's hard to say what without looking at your file.

What is multiple importance sample option. And the wiki page on reducing noise. If you are using Blender Internal in an older version of Blender, the Render Sample settings are found in the Render panel in the Integrator section:.

vray white spots in render

If you use Cycles, you can simply increase the Samples in the Samples section of the Render panel:. Then, under the properties tab, there will be a little sun-like symbol with arrows. Click on it, and adjust the size under "lamp". Hope this helps. I am a newbie and am sorry that my explanation does not have technical terms :. Note: This applies to lamps and objects that have an emission shader. If it is an object, you will need to scale it up literally by using scale in object or edit mode.

Because your scene is not enclosed, adjusting the size of the light might not matter to you. However, if this was inside an enclosed room, and your light had to be constrained to a certain size, I am not sure how to fix it.

The above methods should be tried. Adjusting this will definitely help, even though it will decrease the accuracy of the glossy shader Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Why does my final render image have white particles all over the lighting area?Setting the perfect white balance while rendering has always been a tricky affair.

What makes it even more difficult is our own aesthetic perception. Should it look a bit more cool or warm? Judging your own eyes becomes a bit deceiving. The objective is to make sure that what looks white in real life, also gets rendered as that same white in the photo.

Incorrect white balance introduces a color tint, usually blue or yellow, to your images. So what can we do to remove all the hassles and set a perfect white balance in VRay? Discussed within this book, was a technique involving the use of perfectly white or grey balls, photographed in the same environment, to be used as a reference.

The principle behind this technique is to identify areas in your image that are supposed to look precisely white or grey, then using those areas as reference for the tint removal process. Based on this same principle, there are a variety of techniques that accomplish the same task, but this method is by far the easiest and effective. Alternatively, you can even use white balance as a creative tool to make filter effects like midnight blue or noon yellow.

This can help you to achieve deep blue night skies or a hot noon sun. Make sure your display is correctly calibrated to a standard k color temperature. Otherwise, this will adversely affect your white balance. If you found this tip helpful, you can be sure to find plenty more on my site. Talk to you later, guys. October 4, Notify of. Remember me. Forgot Password? Register Create an Account.Login or Sign Up. What's new Forums. Reduced Chaos Cloud pricing Reduced pricing on Chaos Cloud credits to support work from home conditions.

Black spots on Interior. Posts Latest Activity. Page of 2. Filtered by:.

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vray white spots in render

Here is my IR settings: waiting for u're help! Tags: None. Re: Black spots on Interior Those black dot seem the be a duplicate surface.

If you have two surface occupying the same area you will get that kind of effect. Comment Post Cancel. Re: Black spots on Interior To resolve the pixelated issue enable the sub-pixel option on the color mapping rollout. Re: Black spots on Interior Thanks for the quick response. BTW i checked the sub-pixel option but still no change. What causes that? Set HSph. If this doesn't work, post another screenshot with the new settings.

vray white spots in render

Sketchup Vray version 2. I think that will get rid of the jaggies.

How To Setup White Balance with VRay Physical Camera

I hope those aren't emissive materials being use to light the scene - not good practice. Use invisible rect lights instead. Re: Black spots on Interior Yeap those are rec lights, and the AA did well what about the noisy shadows?

Does it worth the added rendering time? Re: Black spots on Interior wow ive never have ever done any extensive test on lighting Re: Black spots on Interior In the image sampler, try a lower noise threshold - I use 0. Re: Black spots on Interior Oh man really quick answers, really! Most Appreciated dear dcauldwell if you or any one could show me some good threats about interior basic and advance renderings, that would be great! It's not obvious at the low resolution of your attachments, but if you look carefully you'll notice that the bases and heads of the columns appear to "float" above and below the floor and ceiling due to the low GI quality.

Not sour grapes sorry David! Note the attachments and their parameters below- the results vary considerably. The relative blotchiness is obvious, but look carefully at the bottom corners of the red and blue forms and note whether they appear to sit on the ground plane or float slightly above it.

Frustrating as it is, there is rarely a quick fix in biased renderers, but rather a combination and balance of parameters which produces the desired results. Re: Black spots on Interior.

Re: Black spots on Interior Jackson I agree with you. The whole thing is about perception.

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Your examples are interesting, and I see what you mean about the 'floating' effect, which from time to time I have noticed in my own renders.Login or Sign Up.

What's new Forums. Reduced Chaos Cloud pricing Reduced pricing on Chaos Cloud credits to support work from home conditions. Posts Latest Activity. Page of 1. Filtered by:. Previous Next. Tags: None. Re: white spots in render Double check if you have enable reflective GI at the Indirect Illumination option. If yes, disable it. Comment Post Cancel. Re: white spots in render Those are not the same spots that "clamp output" and "sub pixel" would fix. That is something different.

Im guessing your using irradiance map? Re: white spots in render hsph. Just a guess. Re: white spots in render Hi May be this post can help you. Re: white spots in render this happened to me before and i found out that my caustic is on enabled. Re: white spots in render physical sun. Re: white spots in render and, how to sove that?

Re: white spots in render I've tried pretty much everything you've told me. Nothing works. Here's my settings. Any ideas? Re: white spots in render Hi Vise Can you email me the scene and the textures ,if you are using textures, to fpedrogo asgvis. Re: white spots in render Hey Vise, If you have refraction layer on the glass make sure you checked Affect alpha and Affect shadows, under the refraction settings menu. Re: white spots in render Thank you! That is it! It's fixed I knew I could count on you guys.

Re: white spots in render which solution solved it? Re: white spots in render. Hey Vise, If you have refraction layer on the glass make sure you checked Affect alpha and Affect shadows, under the refraction settings menu.

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