D with DerelictASSIMP3 question

[Maeriden via Digitalmars-d-learn]

On Tuesday, 2 February 2016 at 02:57:14 UTC, WhatMeWorry wrote:
> I'm porting a C++/opengl/AssImp tutorial over to 
> D/DerelictOpenGL/DerelictAssImp
> but have hit a brick wall.
>
> [...]

Try aiGetMaterialTextureCount.
I'm guessing derelict uses the C API as much as it can.