Hi Damien, The wave front obj export only supports a single color for each surface piece. I've added to the feature request list to allow surfaces with multiple colors. http://socrates2.cgl.ucsf.edu/trac/chimera/wiki/requests To export multi-color surfaces use VRML or X3D and then try to find third-party software to convert that to OBJ. The split map button on the color zone dialog only works when the surface is colored using the color zone tool. You didn't indicate how you are coloring the map, but you must not be using color zone. The error "no atom selected" is given when you press the Color button on color zone, not when you press Split. Tom Damien Larivière wrote:
Dear Chimera team and users,
When opening a map (EMD 1126 for example), the structure is displayed in grey. From the menu Volume and Surface colors, it is then possible to color the structure.
I would like to export in the OBJ format the colored structure but this one still appears in grey when I display it in a modeler such as 3DSMax. And effectively, the MTL file created by the exporter only contains one color although the structure displayed in Chimera was multicolored.
I look at a tutorial explaining that it is possible to Split map from the menu Volume/color zone. It seemed to me that it is a way to get a multicolored structure in the OBJ format. However, when I want to "split map", a message says "no atom selected".
May you tell me how to get a multicolored structure (initially opened from a map) in the .obj format ?
All the best
Damien
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