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What does it usually mean when an image is postpended with...

nonesuch00nonesuch00 Posts: 18,316
in Technical Help (nuts n bolts)

What does it usually mean when an image is postpended with...

I am exporting a model set in obj format and importing into DAZ Studio. I know that when _d or d is postpended to an image name it means diffuse and it goes in the diffuse/ambient slot on the surfaces tab.. _n or n means normal and it goes in the normal slot on the surfaces tab.

Does _s or s always mean specular? I'm pretty sure it does but am not sure which slot on the Surfaces tab to put it. In iRay in DAZ Studio 4.11 do I put that image in the Surface tab under 'Glassy Layered Weight' slot or somewhere else?

Also some models end in _i or i. I have no ideal what _i means. Which slot do I put the _i in under the Surface tab for that model?

Thanks.

Comments

  • JonnyRayJonnyRay Posts: 1,744

    There is no "always", I'm afraid. While those are fairly common filename extensions, I've seen others who didn't use them at all or seemed to have some other standard way they named their files. For instance, I've seen some who would do this:

    • MyTexture.jpg - Base/Diffuse
    • MyTexture_b.jpg - Bump
    • MyTexture_d.jpg - Displacement
    • MyTexture_n.jpg - Normal
    • MyTexture_s.jpg - Specular (glossy) strength (OR Roughness - especially common for skin as they want to vary the focus of the highlight differently for different areas)
    • MyTexture_t.jpg - Transparency (Cutout Weight)

    I've also seen some others who would do this...

    • MyTexture.jpg - Base/Diffuse
    • MyTexture001.jpg - Bump
    • MyTexture002.jpg - Normal
    • MyTexture005.jpg - Transparency

    I would look at the "_s" file. If it is all shades of gray, then it probably belongs in the Glossy Layer Weight setting or Roughness. If it has color, it may be intended to be in the Glossy Color channel instead.

    I can't think of a common map name that would be an "i". I'd have to see the file in relation to the main texture file to take a good guess at that one!

  • Richard HaseltineRichard Haseltine Posts: 102,712

    You'd have to look at the materials in DS - these are human additions to the file name, so different people may do different things.

  • nonesuch00nonesuch00 Posts: 18,316

    OK, thanks. I think they mean for them to be the 'nighttime textures'. These were made for a game engine environment originally.

  • Richard HaseltineRichard Haseltine Posts: 102,712

    Illumination?

  • nonesuch00nonesuch00 Posts: 18,316
    Richard Haseltine said:

    Illumination?

    Oh, that makes sense. It's basically fake lits windows, doors, signs with the rest of the building black in a few nighttime NYC buildings.

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