pasto Posted October 8, 2014 Share Posted October 8, 2014 Hello, Sorry guys if it is a real stupid question but I am trying to convert some point colors (promoted to primitive with a attrib promote) to a texture map in order to use it outside Houdini. I managed to export an .obj for the geometry but I need the colors too. Is there a way to do this ? Many thanx. Quote Link to comment Share on other sites More sharing options...
ben Posted October 8, 2014 Share Posted October 8, 2014 uv render is one option uvRender.hip Quote Link to comment Share on other sites More sharing options...
pasto Posted October 8, 2014 Author Share Posted October 8, 2014 Thanx a lot Ben, I get the principle but it doesn't render anything, it just warn me about adding a headlight. If I do understand right, it would export some uv map, but what if I promoted the color to primitives ? Many thanx. J Quote Link to comment Share on other sites More sharing options...
ben Posted October 9, 2014 Share Posted October 9, 2014 It works fine with color assign to primitive.Warning doesn't matter. If you render it with a constant shader (what I did in the file) you don't need any light.I'm not sure why it's not working for you. Do not try to render it in the Render view as render view is raytracing and Uv render dones't work with raytracing. Just press the render button on the mantra node or the ropnet. Quote Link to comment Share on other sites More sharing options...
pasto Posted October 9, 2014 Author Share Posted October 9, 2014 Thanx for the answer, Maybe related to my Indie version ? It really doesn't make anything, the render window doesn't pop or anything (and of course no file is created. Merci encore. Quote Link to comment Share on other sites More sharing options...
ben Posted October 9, 2014 Share Posted October 9, 2014 (edited) Just tried with an apprentice version and it works.Maybe in the Mantra node, Properties / Output / Output Picture, try to specify a file to output to instead of "ip" (ip just render the image in mplay but doesn't save it). edit : in hkey(License Administrator) check if you have a mantra token installed Edited October 9, 2014 by ben Quote Link to comment Share on other sites More sharing options...
pasto Posted October 11, 2014 Author Share Posted October 11, 2014 Well I don't even know where to look at, the licence administrator gave me 3 lines, one of them is Render-NonCommercial 13.0, could be this ? I tried with a specific name instead of "ip" with the same result. Strange, thank you very much anyway. J Quote Link to comment Share on other sites More sharing options...
eetu Posted October 11, 2014 Share Posted October 11, 2014 I was just spending a lazy Saturday afternoon looking through the qlib operators (what, me nerd?), and the uvpointcloud stuff seems to work nicely for this. At least with a demo torus You will need qlib for this hip to work; https://github.com/qLab/qLib . ee_ql_pointcloud_texture.hip Quote Link to comment Share on other sites More sharing options...
pasto Posted October 11, 2014 Author Share Posted October 11, 2014 Thx a lot Eetu, I will check this out. Have a nice saturday afternoon anyway Cheers Quote Link to comment Share on other sites More sharing options...
pasto Posted October 11, 2014 Author Share Posted October 11, 2014 (edited) Hello, You were talking about the point texture ql sop ? Very nice tool but I am looking for the exact opposite, I would like to get a texture from the primitive Cd attribute. Many thanx anyway, the ql tools are just great ! Cheers Edited October 11, 2014 by pasto Quote Link to comment Share on other sites More sharing options...
eetu Posted October 12, 2014 Share Posted October 12, 2014 No no, that's exactly what I meant, and what the hip does. uvPointCloud SOP and COP are the ones I'm talking about. 1 Quote Link to comment Share on other sites More sharing options...
pasto Posted October 12, 2014 Author Share Posted October 12, 2014 Oh OK sorry, I must have misunderstood the help card. I will try asap, many thanx. Cheers Quote Link to comment Share on other sites More sharing options...
pasto Posted October 14, 2014 Author Share Posted October 14, 2014 Hello, It does work perfectly Eetu, I just mixed up the Qlib nodes, thank you very much, your file was very helpful. Cheers. Quote Link to comment Share on other sites More sharing options...
Rence Posted September 22, 2016 Share Posted September 22, 2016 Hey guys! I have a question about this. Is it possible to use this technique to render out an image sequence? I have a fluid simulation. One fluid interacting with another fluid. Where the meshes blend I am wanting to render out that map. So if I apply a black color to one fluid mesh and a white color to the second mesh and use the attribute transfer technique from Peter Quint, can I render out a black and what map with the blending being grey? I want to use the maps in another package to differentiate between two shaders. Is this possible? Thanks!! Quote Link to comment Share on other sites More sharing options...
nic0l_as Posted November 17, 2016 Share Posted November 17, 2016 Hello guys, Thanks for your help, it looks like it's what I need! For people experiencing troubles installing the qlib on Windows (like i did), you can check this page: https://dimitriscg.wordpress.com/2016/08/25/qlib-windows-installation-instructions/ Quote Link to comment Share on other sites More sharing options...
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