PVRGeoPOD 3ds Max Normal Bump map export

This topic contains 4 replies, has 2 voices, and was last updated by  mysticcoder 4 years, 1 month ago.

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  • #31448

    Problem:
    A POD file with materials with ‘Normal Bump’ maps exported from 3ds Max with the PVRGeoPOD exporter is missing texture bump maps when importing.

    Reason:
    I realize there are an infinite amount of complex ways to tie maps and materials together in 3ds Max, however a simple and often used (at least here) technique is to use a Normal Bump map which has the normal map tied to the ‘Normal’ channel of the map. This gives correct results in 3ds Max and can help to compare against a runtime build with these maps.
    I’m guessing the exporter discards anything that is not a ‘Bitmap’ class when exporting the standard map channels of a material instead of trying to resolve anything further.

    Possible solution(s) / suggestions:
    Any chance of adding support for the ‘Normal Bump’ map type and extracting the ‘Normal’ map on export so it’s available in the POD file?
    Or maybe parsing non-Bitmap class maps and extracting the ‘first’ map child?

    #37908

    Scott
    Moderator

    Hi,

    You’re spot on, the exporter only exports ‘Bitmaps’. I’ll take a look at getting this fixed.

    To save me a little time, would it be possible for you to send your scene to devtech@imgtec.com?

    Cheers,

    Scott

    #37909

    Hi Scott,

    Yes, it’s not really an issue of ‘fixing’ it, as I say theres innumerable ways to combine things in Max of course so I understand the exporter takes somewhat of the median line.

    I have sent you a simple scene demonstrating the normal bump maps with some implementation notes to consider.

    I will update this post as the ticket progresses for anyone else that wants info.

    Thanks for the attention!

    #37910

    Scott
    Moderator

    Cheers for your scene.

    Just to let you know, our 3.2 release of PVRGeoPOD will support the exporting of textures from Normal Bump maps.

    #37911

    Thanks! It’ll come in very handy.

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