High level abstraction of material specifiction

[simnalamburt]

If we manage to parse the material information of Wavefront OBJ, most usecases of Wavefront OBJ format will be satisfied.

[dbrgn]

Does this mean that materials are currently not handled? I'm asking because the README explicitly states "Wavefront .obj parser for Rust. It handles both .obj and .mtl formats".

[simnalamburt]

As README states, obj-rs does know how to parse MTL files. If you just want to parse the MTL file, you can call parse_mtl directly.

What we does not support is abstracting it with high level helpers like Obj type. I'm not sure if it's even possible since Wavefront Obj format is too flexible.

I'll update the README to make this issue more clear.

Reference

• https://github.com/simnalamburt/obj-rs/blob/master/obj-rs/src/raw/material.rs

[avl]

Are 'usemtl' statements in the obj-file parsed? Is there some way to know which primitives should have which material?

[simnalamburt]

They are being parsed but only shown in RawObj interface. See https://docs.rs/obj-rs/0.7.0/obj/raw/object/struct.RawObj.html#structfield.material_libraries