Coloring mesh with particle color
#1
Is it possible to colorize a mesh by transferring data from colored particles of the same object?

My problem is that I can export super high res OBJ's from XDX (Xenodream 2), but it doesn't export color. I can however export a colored pointcloud. Perhaps the new attribute transfer option can do this?
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#2
You can use the Mapping operator to sample surface texmap colors and apply them to particle mapping channels. Then just apply the same texmap to both and they will match.
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#3
I am very keen on this but i'm not quite sure i'm following all the steps. I'm getting hung up on the mapping operator part. In my setup i have particles using a mapping operator that is using a custom float to drive a gradient ramp. I would like to transfer that color to a frost mesh built around the particles.

Would you be able to post a really simple setup scene for me to study?

Thanks!

EDIT: I managed to get a result on the frost mesh but it is incorrect. The colors are completely wrong and the frost mesh doesnt seem to have its own mapping coords. I added a uvw map modifier and i see color after that, but its still all wrong. Have you managed to get frost to properly inherit colors from the vertex colors of the particles?

Edit 2: Here is a sample scene i put together. There are 2 sets of particles, red and blue. Each has their color assigned via vert colors, the new property transfer node is blending the colors. I added a frost mesher object and picked the tyflow particles to be meshed, that works/renders fine. The problem is as soon as i add my vertex color map to frost and try to render i get an error saying its missing uvw mapping. You will need frost installed to look at this of course. Any ideas?


Attached Files
.max   frost_inherit_color.max (Size: 684 KB / Downloads: 8)
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#4
I can't speak for Frost, but the tyMesher blobmesh mode should inherit your mapping coordinates properly if you turn on inherit UVWs.
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#5
I just tested with the blob mesh and it works. I was hoping frost would behave the same way. Is this something you are able to look at or is this something that would be on thinkbox's side?
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#6
You'd have to ask thinkbox about it. I'm not sure what channels they inherit UVWs from.
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#7
It appears frost is now correctly interpreting the UVW channels since you added support for saving the W channel in the prt export! Big Grin
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#8
Great!
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