All the noise noise noise
jason-2455927
Posts: 51
in The Commons
I can't seem to get a good noise free render with iray. I've used the denoise filter, increased the raytrace, and added more lights. Nothing seems to help. 3delight is crisp and clean but in some ways limited. So does anyone know how to get a crisp render in iray without resorting to tricks like rendering larger then resize?
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Comments
more lights = more noise
the more emitters you have the more itterations you need and lights are also emitters
Get intel free denoiser, and denoise after the render is done.
https://sites.google.com/site/mcasualsdazscripts9/mcjdenoise
https://taosoft.dk/software/freeware/dnden/
https://www.daz3d.com/forums/discussion/comment/2694996/#Comment_2694996
L'Adair said:
I can't believe I didn't share this one first...!
In the Progressive Render settings for Iray is an On/Off button for Quality. If you turn it off, Iray stops trying to reach convergence, leaving Max Samples and Max Time as the only limits to your render. And if you set Max Time to 0, (zero,) you've essentially disabled that limit as well. Then you can use Max Samples to control how long your image renders. And if the default limit of 15000 samples isn't enough, you can go into the parameter's settings and turn limits off.
I now have a file that is loaded at startup and New which is set up that way as the default. I like to let my renders run at night, while I'm sleeping, and when I get up, I decide whether or not to continue rendering. Assuming it hasn't finished already.
No sample image, no render settings, no system specs, no mention of convergence percentage. It's impossible to tell what's going on, other than that the render is stopping before it's done.
No tricks? Get a better nVidia graphic card. Perhaps a RTX 20XX or RTX30XX
That's not true AFAIK. At least the first part. Dark corners in IRAY also lead to noise.
As I understand it, what you want to do is to have everything lit as well and as evenly as possible, using as few light sources as possible. Yes, that's a paradox... which is what makes IRAY tricky.
yeah the inbuilt denoiser doesn't work without a Nvidia card either,
my other PC renders iray reasonably with the CPU and my choice if it won't fit on my newer one's Nvidia card
(has a much more powerful CPU)
but I then need to use a third party post denoiser like the ones Taoz and Casual did if noisy.
For me I tend to get more noise using distant lights. I'm not sure why.
Yeah... Because everyone has that sort of money to throw around...
Everybody's trying to help the OP with suggestions.
lighting, smaller textures maps, lowering subdivisions numbers, using resource reducing plug-ins. Using the correct hardware is just another form of suggestion to help out. Nothing has suggested that the OP could not afford an nVidia video card. The OP did own an AMD graphic card which did not help with rendering Iray nor Octance efficiently. I'm sure an AMD gaming card isn't cheap either.
If my suggestion did not help the OP, then I will apologize. On a seperate note, what is your suggestion for eliminating those noise in the OP's renders?
Happy Holidays!
Render on!
JV
But the answer is not wrong. Since he has no Nvidia GPU, the denoiser that is built into Daz simply will not work. Rendering CPU will take eons, and leave tons of noise, even after hours of rendering. While they can make adjustments to lighting or whatever, the hardware being used is creating a limitation.
The Intel denoiser or some external denoiser outside of Daz is the only option available here. But even with that it still requires long rendering times for a denoiser to have enough pixels to work with. Many GPU based renderers use CUDA and OptiX, and thus require Nvidia. That is just how it is. Even Blender supported Nvidia before AMD, and using OptiX in Blender is much faster than any of the PBR plugins available to AMD.
The good news is you do not need a whole new PC, just a Nvidia GPU. Unless your PC is so bad that it cannot run a new GPU, like if you have a weak power supply, or worse...a Mac.
I suppose right now is not the best time to buy a GPU. The market has completely gone crazy in the past few months, there has never been a time like this. 3000 cards released, and that normally leads to price drops on existing GPUs, like the 2000 series. That happened very briefly, like a couple weeks. Then when Ampere launched things went nuts. The 3000 series is super hard to get, and somehow this lead to old GPU prices going UP, not down. It might take some time for this madness to calm down. However it is possible to get lucky and find a new GPU at MSRP.
Please, please, make the noise stop.
Has anyone used mcjdenoise script with a mac? It wants to be pointed to exe utilities, but I don't have any in my imagemacgick or oidenoise folders, and it won't let me select a bin.