Texture,Texels, and running out of memory

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  • Avatar
    ShadowTail
    texture_rc.jpg


    Try unwrapping with these settings.

    RC will make best use of the available texture space.
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  • Avatar
    Wishgranter
    Hi nrsz

    Can you please make a screenshot like ShadowTail, form the UNWRAP tool ?
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  • Avatar
    nrsz
    First I unwrap, this generates the UV Map, right? Then I make a texture.
    I used your settings- It just gives me a 2048x2048 texture.
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  • Avatar
    Wishgranter
    Hi nrsz

    Change the STYLE to FIXED TEXEL SIZE and set OPTIMAL TEXEL VALUE in TEXEL VALUE and set 4k-8k Tx and report back ( click on MODEL to get detailed info after UNWRAP is done )
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  • Avatar
    nrsz
    Ok I tried with two different fixed Texel sizes:

    Suggested optimal Texel size 0.002856:
    a.PNG


    And custom Texel size 0,0005:
    b.PNG


    So it seems lowering Texel size does increase the Texture. I already read that in another thread.
    But why is it so hard to get a crisp 8k texture? I have ~150 photos with 20 closeups of the model.
    I am still not satisfied with the texture quality.

    I am calculating the texture on a reduced model with 60k triangles. Has that anything to do with it?
    Align -> Normal Model -> Simplify -> Smooth -> Unwrap -> Texture -> Export. That ok?
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  • Avatar
    ShadowTail
    Might it be the case that your chosen texture size is way more than RC needs for 100% texture quality?

    There is only so much detail that can be extracted given the number of source images and their resolution.
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  • Avatar
    Wishgranter
    Hi nrsz

    If youuse OPTIMAL TEXEL value, then you get best possible NATURAL-REAL resolution, if you use lower values it will be just upscaled-interpolated. Texture size just define Tx resolution, not acual texel size. so if you set say 16k then you get say 15 % filled with actual Tx and its OK as there is no actual data that coudl fil the 16k Tx space. If you set 4K then can get say to 85 % and 2 x 4k Tx, if youset 8k res then you get just say 30 % fill as again there is no actual data to be placed on the Tx.
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  • Avatar
    nrsz
    hm..take a look at my photos.

    this is the source material:
    a.JPG


    and this is the texture when using "optimal texel value"
    b.png


    the closeup photos are of course detected and aligned correctly.
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  • Avatar
    Wishgranter
    Hi nrsz

    Its possible to get the data for inspection ? RCPROJECT + Images ?
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  • Avatar
    nrsz
    thanks for the offer

    I guess you need all the photos and project files.. that will be roughly 7gb.'
    I will split it up and send it to you, but tomorrow.

    thanks
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  • Avatar
    Wishgranter
    Hi nrsz

    Size is OK.
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