LC is still flickering, mostly in the background (far from camera). Can I do something ? Do I have to use 100000000000000000 LC subdivs?? or is there anything wrong in the parameters?
It’s a aircraft interior. I cannot show due to NDA. I’m stuck
You need to precalculate the LC once using “use camera path” option and save it to disk, then render animation with it from file, this should solve the flickering (if its related to LC)
Thanks Dmitry for the answer. But, even with moving objects? I thought to understand that with moving objects we have to use BF+LC and render the LC per frame…
Its worth a try It might work depending on how extreme the movement is. Also, this is a really closed interior space so there is a lot of bounce probably happening. And as such it would be hard to make it stable with motion.
I would also make lc samples some what small and raise the lc subdivs to something like 2000 (depending on your scene complexity, the more complex the more samples)
I have already 3000 subdivs. Trying out the “use camera path”… I’m lost and stuck. No Idea how to render out this animation, and you wouldn’t want to know when my deadline is !
Thank you for the proposition Dmitry. I’m trying out use camera path. I’ll keep you updated and send you an email if that doesn’t resolve the numerous issues.
basically use camera path will create static lc map for entire range of frames, but what that would mean is if there was an object obstructing the light then it moved and allowed the light to shine through so therefore the gi would change from the light which showed up, the illuminated portion that the light contributed to the gi will always be there even when it was not showing up and if an object traveled through those lc samples it would get incorrect gi illumination etc.
That is also my understanding. I don’t why it’s not possible to have just a possibility to render animations with moving objects in a simple way… like a biased brute force
It took me now 4 days to try out different settings, with no result. The only way I see for now is to use BF+BF and pay 10k€ to the renderfarm. And I would still have noise probably…
in a closed interior space its not simple. Biased brute force is essentially animated irradiance map. Usually when you encounter scenario like this you need to approach it differently from the get-go or else you will waste time like you have.
excuse me, but I cannot excuse Vray just because the situation is difficult. I know that these interior spaces with small windows are not the best situation. But I don’t see why a render engine should be able to render a still that looks cool, and then suddenly, when you have to output an animation, there is no way to render without a discoball inside. It’s just my point of view, off course. I rendered tons of animations with moving cameras, and I went thru… but as soon as you have anything moving in the space, it’s not working anymore. Are we doing animation ? yes. I want to do animation, care about the beauty of the picture, and not fuzzle around with tons of tiny little parametres. And if you have the bad luck to change the bad one, your rendertime can just double right away…
ok, I’ve got 20frames now and it looks ok. Letting render for 75 frames now. just crossing fingers that “this” will be THE solution for my nightmare. Thanks a lot Dmitry !
Hope it renders fine for you tomorrow I think I might write a little tutorial on this subject.
I think comparing still with animation is not really fair. Beautiful still with nice render speed does not equal the same for animation. Further more, static scene fly through does not equal to fly through which contains moving objects. I would classify these are three levels of complexity. In film industry the latter is the most common. I’ve been working with these types of scenes for a long time and I can tell you there is never a perfect gi setting or sampling setting, every situation is unique.
So far, it works. I had to lower the settings, it was too expensive. But your solution worked so far without any big trouble.
I’m not comparing stills and animation. I’m saying that we should be able to render an animation when a still ready to work. I know it’s not the case, at least not with the softwares I tested or used for now. But I think it should be normal. I want to work on nice models, nice setups, nice shaders, nice light, and when all this is done, I want to render, whenever it’s a still or an animation. I don’t want to dig into hundreds of settings.
Would you want to use your car if you would first have to charge the battery, verify that tires are attached, unmount the motor to check if everything is ok, test all windows, and make first a test drive around the corner ? probably not.
I don’t know… I want to create rather than troubleshoot.
Some of that is experience, some of that could be better. Can’t really compare it to a car though. Cars has been in development for 100 years with billions of dollars. Some things are not even up to a renderer, for example hardware limitation. If you have a pc that was 1000 times faster you could render in realtime with brute force this would solve all the issues.
I agree that the amount of options and settings can be overwhelming, and it will get better in time
It might work depending on how extreme the movement is. Also, this is a really closed interior space so there is a lot of bounce probably happening. And as such it would be hard to make it stable with motion.