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Thread: Extra Buffer nodes

  1. #826
    Quantenschaum, please, feel free to make that tutorial and post it here as well!!



    Gerardo

  2. #827
    Nonplanar Triangle Quantenschaum's Avatar
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    you first! in this case i would do a re-torial :-)

  3. #828
    Nonplanar Triangle Quantenschaum's Avatar
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    meanwhile... LW2019 is out with GPU denoiser and de-spiker (de-firefly) :-D

  4. #829
    Those are excellent new features!!!

    Btw, just to let you know Denis has re-added Global Buffers in DP Pixel Filter Node Editor!!! It works with any reconstruction filter and it allows us to use Surface ID / Object ID buffers for making matte object/surface passes able to get motion blur, depth of field and any other subpixel effect.


    We can use it essentially in 3 ways:

    With Color Tool:


    With a Gradient:


    And a tip from Denis with a Random Vector:


    If we need black background (or any specific background color) we can connect a DP SaveMask node:


    More detailed description here.


    So it's as easy as in previous versions!




    Gerardo

  5. #830
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    Hi,

    I added a Get Light Buffer node in DP Filter 2018,
    both Win and Mac versions, compatible with LW2019.

    Light Group must be created in Buffer tab, or in Light Properties panel,
    this group is valid, if at least one Light belongs to this group.
    like for Custom Buffer, Buffers of a Light Group are valid,
    if "Render" option is checked in Buffer tab.

    Open the Image Filter Node Editor, add a GetLightBuffer node (Buffers tab),
    Open its panel and select a Light Group in the list,
    of course you can build a nodal setup with several Light Groups.

    Thanks to Gerardo for testing,
    Denis.
    Last edited by dpont; 07-04-2019 at 12:06 AM.

  6. #831

  7. #832
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    Thank you

  8. #833
    Not so newbie member lardbros's Avatar
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    With LightWave 2019, I'm struggling to do a global Ambient Occlusion using the DP Pixel filter. I have this set up in LightWave 2015 and it worked great, but since the new renderer I don't see to be able to get it working.
    How would I go about setting it up in the 2019 renderer? Any ideas?
    LairdSquared | 3D Design & Animation

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  9. #834
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    not sure, I know Denis made an AO plugin for creating a pass in 2019.

    Not seen Gerardo around for a while, hope he hasn't left LW

  10. #835
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    Quote Originally Posted by lardbros View Post
    With LightWave 2019, I'm struggling to do a global Ambient Occlusion using the DP Pixel filter. I have this set up in LightWave 2015 and it worked great, but since the new renderer I don't see to be able to get it working.
    How would I go about setting it up in the 2019 renderer? Any ideas?
    Yes, no more possible since LW2018, some features are removed from the SDK,
    but I wrote an interactive python script for setting a GlobalAO buffer based on DP Kit AmbOcclusion node,
    go on the DP Kit download page.

    Denis.

  11. #836
    Not so newbie member lardbros's Avatar
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    Quote Originally Posted by dpont View Post
    Yes, no more possible since LW2018, some features are removed from the SDK,
    but I wrote an interactive python script for setting a GlobalAO buffer based on DP Kit AmbOcclusion node,
    go on the DP Kit download page.

    Denis.
    Ah, grabbed that now, thank you very much. Such a shame the SDK doesn't allow for that Maybe next year?
    LairdSquared | 3D Design & Animation

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  12. #837
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    Quote Originally Posted by lardbros View Post
    Ah, grabbed that now, thank you very much. Such a shame the SDK doesn't allow for that Maybe next year?
    Not sure, old Pixel Filter node editor method was tricky and there's no more
    decent access to raytracing functions,
    but the Global AO Buffer using Special Buffer is probably faster.

    Denis.

  13. #838
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    Hi,

    Previous addition in DP Filter was a Color Space node,
    based on the Lightwave Color Space system,
    it is able to save an loaded lut table independently from other usage in Layout,
    it can also be used for VPR render with Pixel Filter node editor
    and a "VPR Only" option for not applying the filter for F9/F10 render.


    I added also a 1D/3D Lut node,
    with the advices and help of Gerardo Estrada,
    most ascii Lut formats are available ,
    like Cube (1D or 3D), 3dl, Cinespace (including 3D with 1D prelut), Pandora, Truelight, etc..

    With a few options:

    "Invert Data", "Invert Table", checking both may repair order error in 3D Lut or force warm/cold tones.
    "Direction Forward" for normal 1D Lut usage, "Backward" for reversing 1D Lut.

    Click image for larger version. 

Name:	1DLut_Forward-Backward.jpg 
Views:	33 
Size:	148.9 KB 
ID:	148066

    "Clipped" is the default behavior with 1D Lut for clamping color input in 0-1 ranged values,
    "Extrapolated" is a linear extrapolation for highlight upper-bounded input values,
    based on an idea from Gerardo.

    Click image for larger version. 

Name:	Lut1D_clipped-extrapolated.jpg 
Views:	67 
Size:	86.0 KB 
ID:	148068



    Denis.
    Last edited by dpont; 06-05-2020 at 10:43 AM.

  14. #839

    "Extrapolated" is a linear extrapolation for highlight upper-bounded input values,
    based on an idea from Gerardo.
    Nice one.

    Thanks again,  
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  15. #840
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    That's going to be very useful!

    Thanks Denis!
    Salut!,
    Allabulle.

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