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Surface model, coloring

1. M by magicalcloud_75 on 25 Feb 2024, edited 8 Mar 2024 #

   Hi guys. I'm trying to figure out this part.

   Any ideas for a clearer picture? How does it work? The ultimate goal would be to make it part of the BlenderGIS addon as option.

   

   Coming from this briljant recording on a older Blender release.

   Thanks!

   Hans

2. M by magicalcloud_75 on 1 Mar 2024, edited 1 Mar 2024 #

   Managed to get clearer shots. So far, so good.

   Added a IFC file to be tested

   Texture coordinates > objects

   RGB Curves > color

   HueSaturation Value > Color

   BrightContrast>Color

   ColorRamp >Color

   Emission

   Material output, Surface

   

   

3. C by camontellano on 1 Mar 2024 #

   Hi...no colors are coming in. The Surface itself is being represented.

4. R by RaphaëlVouilloz on 1 Mar 2024 #

   I would rather start from Generated in Texture Coordinate, plug the mapping vector in a separte XYZ node, then plug the Z value in the color ramp

5. M by magicalcloud_75 on 1 Mar 2024, edited 1 Mar 2024 #

   Do you have a file in which this is used? I want to learn this but it's not that easy to understand what you talk about.

   I attached a IFC as sample. You would need to save it as Blenderfile

   I managed to get this. But shading is not what IFC colors.

   

   The saved view tool doesn't seem to work in the shading mode with geodata far off.

6. M by magicalcloud_75 on 1 Mar 2024, edited 1 Mar 2024 #

   How does one save shaded collored meshes to IFC?

   

   

   

7. R by RaphaëlVouilloz on 4 Mar 2024 #

   Sorry, I didn't understand that you wanted to save it in IFC. I don't know if you can save procedural textures

8. B by bdamay on 4 Mar 2024 #

   My opinion is that you cannot. AFAIK

9. M by magicalcloud_75 on 4 Mar 2024 #

   @"RaphaëlVouilloz" said:

   Sorry, I didn't understand that you wanted to save it in IFC. I don't know if you can save procedural textures

   Would be nice as visual technique. ifc site in grey is hard to see the diffrences in heights. Will try dwg.

10. G by Gorgious on 7 Mar 2024, edited 8 Mar 2024 #

    re https://community.osarch.org/discussion/441/mesh-color-to-ifc-export-in-blender and https://standards.buildingsmart.org/IFC/RELEASE/IFC4_1/FINAL/HTML/schema/ifcpresentationappearanceresource/lexical/ifcindexedcolourmap.htm You can either use vertex colors (I don't think it's implemented natively in BlenderBIM) or bake the colors to a texture map and link it as a style.

11. B by bdamay on 7 Mar 2024, edited 7 Mar 2024 #

    @Gorgious said: or bake the colors to a texture map and link it as a style.

    Interesting - i didn't know about textures in ifc - i'll take a closer look

12. G by Gorgious on 8 Mar 2024 #

    AFAIK you can setup textures in IFC but the actual rendering depends on the software implementation, so YMMV.

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