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White artifacts in LAMH hair - do they disappear during render? Solved

Jayne WilsonJayne Wilson Posts: 36
edited July 2020 in Technical Help (nuts n bolts)

So I just purchased the Siamese for the Hivewire House Cat and am using LAMH which I've had for a while but rarely used.  Following the LAMH instructions, I managed to get the LAMH preset loaded and did the export to OBJ, set the iRay shader and get it rendering.

I've attached a screen shot because I see a lot of white speckles, or artifacts in the fur ( I don't think I see them anywhere but on the fur) This is still at zero percent done and I'm wondering if those will fill in and disappear as the render completes, or will they still be there after a 24hr or longer render?

I used iRadiance HDR resources for the lighting, along with a mesh light rig around the kitty.  I have the firefly filter on and I played with the denoise settings per a thread I found in here and that seemed to help a tiny bit (there seem to be less speckles than the first time I tried it) 

Any advise you can offer will be appreciated and if this has been asked and answered somewhere and I didn't find it, please point it out to me.

Thanks in advance.

 

Screen-Shot-2020-07-05-at-11.41.43-AM.jpg
1500 x 844 - 1M
Post edited by Jayne Wilson on

Comments

  • Jayne WilsonJayne Wilson Posts: 36

    OK - I answered my own question.  No - they do not disappear.  After a couple of hours they were, if anything, more noticable so I canceled the render.  In fact I have done that several times this weekend - grrrrr.

    Someone mentioned on another thread that the issue may be caused by the glossiness setting on the hair, so I turned that down to 65% and seem to be getting a much better result now.  

  • WendyLuvsCatzWendyLuvsCatz Posts: 38,504

    honestly I just use 3Delight for LAMH, it looks absolutely lovely and you can always render a png image to inset as a billboard or postwork in.

  • FishtalesFishtales Posts: 6,161

    Go to Render Settings/Filtering and under set Nominal Luminance to 1500 and see if that helps. If there are still one or two try gradually lowering it until they are all gone.. Sometimes it can be too strong a light that causes them too so lowering the light settings and changing the Tone Mapping settings to compensate can work too at times.

  • Jayne WilsonJayne Wilson Posts: 36
    WendyLuvsCatz said:

    honestly I just use 3Delight for LAMH, it looks absolutely lovely and you can always render a png image to inset as a billboard or postwork in.

    Haha!  I probably should try that.  My poor old iMac is still chugging along with this render - over 24 hrs now and it says it's 30% done, LOL.  Actually I think it looks pretty good as it is and might just stop it and save it here.  

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