I have a ton of hours of hand-painting hairs on my dog model. I stopped this project about a year ago and just recently started on it again.
I know I painted a lot of the hair in 3D Caot last year but now I found nothing but problems trying to get my UDIMs back into Blender from 3D Coat. I had the same problem last year and it took days of asking questions on the 3D Coat forum and perusing YouTube videos to get it to work. In truth, I don’t want to have to do that again.
I was painting with a 2-pixel brush in 3D Coat and it worked but in Blender, at 4k, the brushwork pixelates badly.
So I want to try to up the UV Map resolution to 8k. I know I can take the Image map into Affinity Photo and or Topaz and increase the resolution.
I’m not sure how to change my UVs in Blender. Can this be done? If it is possible can someone give me a little hand-holding in how to do it?
UV’s coordinates are from 0 to 1 for each tile and are independent from the texture resolution. if you change the resolution of your textures the same UV layout will be mapped on it
so what you need is just change the resolution of your texture to 8K and start painting on it. spoiler alert : it will so slow to paint on 8k in blender
Thanks cgPixel. Really appreciate the immediate reply. My fingers are crossed. If it doesn’t work then I will paint the pixelated 4k and smooth the art out in Affinity Photo or Rebelle 7.
yeah just scale your texture outside blender. if blender is still open in the (image editor/UV editor) go to image=>reload
blender will update the new image (with the new size )and your UV’s will seamlessly look the same on it
there is no “UV image” : we have a “UV Layout/map” a set of 2d coordinates for your vertices and those get mapped on any "texture IMAGE "
good luck with how slow blender texture painting is on highres. but a small trick if you are painting on the 3d mesh. close the UV editor/image editor will speed it up a bit. cause blender will not have to worry about updating both
Thanks again cgPixel. Just a thought here. Do I need to stay in binary increments? I know 8k is 4 times larger than 4k. Can I put in an image that is in between 6k and 8k? Just while I am painting. Then I can resize it back down to 4k in a paint program that might give a better result.