BGEM Material Files or how to get the nuka cola effect on other objects

[azraelb]

Hi,

 

so I know how to add glowmaps to a BGSM material file to make stuff glow. But some objects (e.g. special nuka cola bottles) also emit some light.

So far I did found that this light effect comes from an additional BEGM material file that is somehow connected to a second mesh inside (or outside?) of the nuka bottle.

 

Does anybody know a tutorial about BGEM files or can explain how this does work exactly?

 

thx, az

[N7R]

When you mean light do you mean a physical one? If that is the case then an add-on node is what you are looking to do: https://www.nexusmods.com/fallout4/articles/127/

[Larko84]

I'm not an expert but AFAIK, BGEM files are used to handle things like transparency in a mesh, like glass. In Nifskope you change the falloff values in the BSEffectShaderProperty of that BGEM file to get the desired effect. Certain things have to be have right Shader Flags which you see in the detail tab in Nifskope. Add-On nodes are used to emit light from a mesh.

[Ethreon]

BGEM is used for any effect, not just transparency. The glowing nuka uses addon213 to shed light. It also uses an ordering node to (probably) determine the render order. The meshes are for the glass and the liquid inside.

[Larko84]

Can you give an example of where a BGEM file is used for other than transparency, I've only ever seen it used for things like water, visors, glass objects, "see through" clothing/armour.

Edited November 5, 2018 by Larko84

[Ethreon]

All the smoke, fire, explosions etc.

[Larko84]

There part of the NiParticleSystem...not BGEM related.

[Ethreon]

All of them use a BGEM.

[Larko84]

Nope, smoke, fire, explosions are different.

[Ethreon]

They all have an effect shader inside, it just doesn't use an external BGEM and relies solely on the base diffuse.