KE Attribute in MTL Files

Question

I have a .mtl file next to my .obj file which specifies the materials for the object. Im trying to create a parser but dont know what the "Ke" attribute means. e.g:

Ka 0.78 0.78 0.78 
Kd 0.78 0.78 0.78
Ks 0 0 0
Ke 17 12 4 # What does this line mean?

Thanks :)

score 14 · Accepted Answer · answered May 18 '16 at 17:36

14

Ke stands for emissive coeficient. It goes together with ambient, diffuse and specular and represents the amount of light emitted by the material. If you also have a defined emission color the material will irradiate light.

answered May 18 '16 at 17:36

Craveiro

503
5
15

score 0 · Answer 2 · answered Aug 03 '22 at 10:27

Ka 0.78 0.78 0.78  # ambient color
Kd 0.78 0.78 0.78  # diffuse color
Ks 0 0 0           # specular color
Ke 17 12 4         # emissive coeficient. It goes together with ambient, 
                   # diffuse and specular and represents the amount of 
                   # light emitted by the material.

KE Attribute in MTL Files

2 Answers2