General: 
Avoid Grouped Objects, Combine Objects per Shader to speed up translation / instancing of many objects
using the obj. Exporter. (Very slow w. Thousands of objects)

General: Avoid using the default shading with any polygon object, Delete Construction History.

Exit Portals: Name of Object == ExitPorta*, Normals should point into the room

Instancing w. Locators: Generate mti_InstanceLocator from within the mti-GUI, 
change custom attribute of thus generated locator to "name to be instanced -1 char"
(e.g. "ToInstanc" for objects called "ToInstance*")

Instancing by fixed amounts: Enter Name of Objects (Transform, not Shape) + Number of Instances + 
Translation.

Incandescent Shader: 
first  incandescence-Component -> Temp
second Incandescence-Component -> Gain

Lambert:
Diffuse = Colour (Spectrum)

Phong:           
Diffuse = Colour (Spectrum)
Refractive Index = IOR
Spec Rolloff =  Exponent/10

Specular: 
Refraction Limit = precedence
Surface Thickness = cauchy_b_coeff
Transparency = absorption_coefficient_spectrum
Light Absorbance = scattering_coefficient_spectrum

PhongE:       Currently not Supported
Surface Shader: Currently not Supported

Finally: Make sure to have the folder \objs so obj-export can work.
Even more finally, have fun.


