How to Render Mesh colors?

How can I render Mesh colors?

I got those from Geco, as an irradiation level indicator. But when I render it, I am simply getting the color of a layer in which these meshes have been baked.

Any help?

Thank you.

Replies to This Discussion

Permalink Reply by Vicente Soler on November 14, 2013 at 2:55pm

I exported it to Cinema 4D as an .obj and seems to work fine without doing anything else. Make sure the renderer is interpolating the pixels from the bitmap. Make sure there is no extra welding or mesh optimization or anything of the sort when importing.

I added one extra subdiv step to make it a bit smoother:

Permalink Reply by Christian Schmidts on November 14, 2013 at 4:01pm

looks really good! it works for me now too - thank you again. Is there a certain option in c4d for interpolating the pixels form the bitmap or is it done by default?

best/chris

Permalink Reply by Vicente Soler on November 15, 2013 at 2:27am

On the bitmap shader there is an option called "Sampling", it should be set to MIP by default, which is good. It shouldn't be set to none.

Permalink Reply by Robert Vier on August 17, 2017 at 9:16am

Great script, thanks a lot!

Permalink Reply by Simon Kallioinen on August 20, 2012 at 1:15am

You can also check out this discussion. It's a bit old so it's possible things have changed since then but anyway...

http://www.grasshopper3d.com/forum/topics/rendering-falsecolor-data...

Permalink Reply by Vicente Soler on August 20, 2012 at 1:23am

The definition I posted above does the same thing that I posted in that thread but better, no artifacts this time.

Permalink Reply by Paul on December 16, 2013 at 9:16am

Hi Vicente,

I've gotten your definition to work in the past, but for some reason, I'm getting an error message when trying to reference in my mesh's.

(1. Index was outside the bounds of the array. (line: 0))

I've got a collection of differently colored mesh squares coming from DIVA and am using Rhino 5 and GH 9.0061

Any idea what's going wrong?

Thanks!

Permalink Reply by Vicente Soler on December 16, 2013 at 10:34am

I think it only works for a single mesh. You can join them into one with the join mesh component.

In every GH workshop someone always asks me how to render geometry with colors generated from Grasshopper. I don't know why no one has yet done a proper version of this that reliably works in a plugin.

Permalink Reply by Hannes Löschke on December 16, 2013 at 12:49pm

Working on it. Mind if i borrow your script as a start?

UV textures are top of the list of Scarab ;)

Permalink Reply by Vicente Soler on December 16, 2013 at 1:08pm

Sure, everything I post on this forum is under the WTFPL license.

I'd prefer my stuff to be used for privately funded commercial work rather than educational or public use, but there are no restrictions.

Permalink Reply by Toussaint Jimenez Rojas on March 26, 2014 at 12:04pm

Vicente im working with your Def. i´m having the same problem that RWNB but im working on RH5 and GH 0.9.0064

i cant see your Rainbow Horse, and the definition its having an weird error when i try to execute it

Permalink Reply by Andrea Rossi on November 13, 2014 at 2:50pm

Hello, I used the script before and had no problems in making it work, but now for a different project I am trying to use it to map colors on a mesh composed of disjointed faces, and the mapping does not seem to work (in the image, each face should have only one color...).

I think it has something to do with the fact that vertices are duplicated, do you have any idea on how to fix it? THank you...