Lighting issue

Rendering
,
1

Astronaut-lighting-issue
Astronaut-lighting-issue828×1392 127 KB

I used blender to pose the astronaut model and then exported it as a OBJ model to import into Rhino. The part of the model with the texture shows properly, but the helmet does not. It does not have a texture. I think my problem is just lighting in Rhino to have the helmet display properly as it does in Blender. Turning on and off sun and skylight doesn’t change the helmet from displaying grey. I do not normally use lights. Suggestions?

Here is the MTL file:

newmtl Default_Material.003
Ns 200.000000
Ka 1.000000 1.000000 1.000000
Kd 0.500000 0.500000 0.500000
Ks 0.500000 0.500000 0.500000
Ke 0.000000 0.000000 0.000000
Ni 1.450000
d 1.000000
illum 2

newmtl Glove_v2.001
Ka 1.000000 1.000000 1.000000
Ks 0.000000 0.000000 0.000000
Ke 0.000000 0.000000 0.000000
Ni 1.450000
d 1.000000
illum 1
map_Kd C:/Glove_Base_color_V2.png
map_Ns C:/Glove_Roughness_V2.png
map_refl C:/Glove_Metallic_V2.png
map_Bump -bm 1.000000 C:/Glove_Normal_OpenGL_V2.png

newmtl Helmet_v2.001
Ns 20.000006
Ka 1.000000 1.000000 1.000000
Kd 0.588000 0.588000 0.588000
Ks 0.000000 0.000000 0.000000
Ke 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 1

newmtl Wearpack_v2.001
Ka 1.000000 1.000000 1.000000
Ks 0.000000 0.000000 0.000000
Ke 0.000000 0.000000 0.000000
Ni 1.450000
d 1.000000
illum 1
map_Kd C:/Wearpack_Base_color_V2.png
map_Ns C:/Wearpack_Roughness_V2.png
map_refl C:/Wearpack_Metallic_V2.png
map_Bump -bm 1.000000 C:/Wearpack_Normal_OpenGL_V2.png

2

can you post a screen cap from blender so we can see what you are trying to replicate?

3

The materials for wearpack and glove have texture images assigned (map_Kd, map_Ns, map_refl, map_Bump), but the helmet does not.

4

Blender and Rhino 8 astronaut
Blender and Rhino 8 astronaut1922×1251 1.51 MB

On the left is the original Blender file. On the right is the OBJ Blender exported version of the Blender mesh shown at the left with the Rhino 8 viewport set to Render. Everything is up to date.

I am having problems with Rhino not finding texture files associated with an OBJ model. Some are completely grey as this would be if I had just imported the original OBJ file. I cannot find a way to force Rhino to research for the associated files or to tell Rhino where to look for a different set of the same files, such as ones that have been edited. I am not seeing a dialog box about missing files.

5

After importing you can select the helmet object, go to materials panel and assign the correct texture yourself.

6

Thank you for your response. I am aware of that option.

Some models have a large number of materials. I was trying to find a way to have Rhino “relink” missing files with some command sequence.

7

Did you see my earlier reply on the MTL file? It is missing references to the image textures. Fix that and it should be fine.