Speckles in my render.
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Hello Guys and Gals,
I’m Carl, I’m a freelance architectural designer and I guess you could say I’m relatively new to using VRAY and Sketchup; I’ve been using it on and off for the last few years but only to the level of basic model making and basic white studio renderings.
I’m currently working on examples for my portfolio and my website but I seem to be having issues with my rendered image. There seems to be white dots and speckling at different point of the image and I do not know why this is? Any suggestions would be great. I’m using Sketchup 8 and Vray 2.1 (I think).
I’ve put some images below of what I mean, but if they don’t show up I can e-mail them to you.
Cheers
Carl
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below are my images for the post above, any recommendations would be great as I dont understand the random speckling.
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Hi.
Look at this link to other links and threads:
http://sketchucation.com/forums/searchgoogle.php?keyword=vray+speckles -
Activate sub-pixel mapping and clamp output in color mapping tab. Usually, it works with the white speckles. Good luck!
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I agree with the above. I find these appear when I have metals in my scene. Are you using emissive materials at all for your lighting?
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Thanks for that, it has definitely made a difference to the renders and now they look much cleaner. Do you know why this occurs?
No I haven't used any emissive materials for anything, well there's an emissive layer on the computer screen in the office image but that's literally it. Would that effect the render? (I dont know a great deal about emissive layers as I'm fairly new to all this)
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if you have anisotropy turned on - make sure it's mapped to the Z axis instead of UV...
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Cheers Andy, what does anisotropy do? I'm still trying to get my head round all of the terminology.
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It's a setting in reflection used to simulate brushed metals.
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Would that cause the effect in my renderings though?
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Yes, I do believe I have come across this same issue and that fixed it.
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@vagadesign said:
Would that cause the effect in my renderings though?
Yes, it can cause effects like what you see in your rendering. There's a checkbox to use UV, you want to have that box unchecked.
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