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  1. Thread: Ae Ray Tracing

    by hendrik
    Replies
    9
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    1,457

    Yep, CUDA is nVidias tech and although it is...

    Yep, CUDA is nVidias tech and although it is similar to OpenCL it runs on nVidia hardware only. AE uses CUDA not OpenCL so no GPU acceleration there for you I'm afraid.
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    Some time ago I also made some tests with DCP's...

    Some time ago I also made some tests with DCP's using OpenDCP and other tools. During that I found that AfterEffects DCDM transform might be slightly off. Images converted with this profile showed a...
  3. If you convert RGB channels to YCrCb in Nuke,...

    If you convert RGB channels to YCrCb in Nuke, they get swapped to RGB channels so that: Y->R, Cr->G and Cb->B. It has nothing to do with how they are calculated.
  4. If you refer to upsampling in Nuke then any Nuke...

    If you refer to upsampling in Nuke then any Nuke user can do that. Nuke is commercial software, although not too cheap (pretty expencive actually). Only limiting factor is that you have to decrypt...
  5. Check these folders for missing frames. I believe...

    Check these folders for missing frames. I believe some other users have experienced similar problems. Resolve does not interpret sequences with missing frames as videos.
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    1,415

    Example of out of gamut colors for rec709 space:...

    Example of out of gamut colors for rec709 space:
    https://lh3.googleusercontent.com/-TPEfPHoUW6M/Ua726uXKSyI/AAAAAAAAAco/WVW1CP-joQc/s800/shot_3_gamut_warning.png
  7. Replies
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    1,415

    As I understand, Lightroom uses ProphotoRGB...

    As I understand, Lightroom uses ProphotoRGB primaries but linear values for proper linear workflow (ProphotoRGB color space has a specific gamma curve). After applying all the corrections, last step...
  8. Replies
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    1,415

    Color shift might be due to improperly guessing...

    Color shift might be due to improperly guessing color space of tif files. Resolve may assume it is sRGB or rec709 but it is Prophoto instead. If you open tif's in Photoshop and make sure it reads in...
  9. Replies
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    5,512

    Blue channel is really noisy, some reduction can...

    Blue channel is really noisy, some reduction can help the key a bit. Camera raw settings when importing to AE make your image look like rec709. I would pull contrast down to -100 and remove all...
  10. Replies
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    1,542

    Wow, nice clips! They look great and are funny...

    Wow, nice clips! They look great and are funny too.

    Margus, did you order the camera from web or went on shopping trip?
  11. Does anyone know if some denoising algorithms...

    Does anyone know if some denoising algorithms work on pure raw data? The question in first post made me wonder... Because if not, there is absolutely no point outputting raw bayer pattern files again...
  12. Replies
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    2,123

    These green images are the result of showing...

    These green images are the result of showing plain raw data. It means that no color space transforms or white balancing is being performed. For raw images all this info is stored in metadata and when...
  13. This is some quality scaling! Moire elimination...

    This is some quality scaling! Moire elimination is really good, image looks better resized than before :)

    4K scaled vs. original size dpx. 4K image is zoomed in to 200%, original matches same area...
  14. Thread: BMC Problems

    by hendrik
    Replies
    34
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    6,028

    My guess is that it depends on whether raw...

    My guess is that it depends on whether raw software can use the dng metadata about defective pixels or not. These dots are certainly there, dcraw bayer dump shows them clearly. Why there is so many...
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    nVidia purposely crippled (if that is the right...

    nVidia purposely crippled (if that is the right word to use here) it's 6xx series cards so that they don't compete with Tesla series cards in GPGPU field. They have more CUDA cores but the cores...
  16. Thread: Colour Gamut?

    by hendrik
    Replies
    2
    Views
    1,062

    It depends on the CFA filter colors on sensor I...

    It depends on the CFA filter colors on sensor I think. These give the theoretical bounds of color gamut that is possible to record.
  17. Whether it is theoretically possible depends on...

    Whether it is theoretically possible depends on sensor specs. I don't think all sensors support ADC sampling step changes. Changing the region of interest would be better I think. For example...
  18. Replies
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    12,928

    Whatever you call it, it still works the same....

    Whatever you call it, it still works the same. You multiply values digitally. When it is done, is another story. You can multiply digitized sensor values, XYZ values or RGB values. I think they all...
  19. Thread: graphic card

    by hendrik
    Replies
    29
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    6,514

    New Kepler series nVidia chips have higher cuda...

    New Kepler series nVidia chips have higher cuda core numbers but cores themselves are weaker. 5xx series cards still beat 6xx series in this field, at least with price... For more info, search...
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    12,928

    Changing gain value in Resolve is your digital...

    Changing gain value in Resolve is your digital ISO change. Want to go from 800 to 400 - set gain to half of it's value. Want 1600, double it. 800 is BMCC sensor's zero gain sensitivity.
  21. Replies
    131
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    12,928

    Still cameras bake gain into raw files, movie...

    Still cameras bake gain into raw files, movie cameras don't (at least some of them). ISO is basically a gain value above/below sensor default. You can add analog or digital gain, dslr-s use analog...
  22. Replies
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    1,259

    For Prores (and DNxHD if it comes) you can choose...

    For Prores (and DNxHD if it comes) you can choose between film and video curve. With film curve it should be 13, with video it could be also 13 or somewhat less depending on conversion settings. With...
  23. Replies
    553
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    113,130

    Cineform raw should be less stressful because you...

    Cineform raw should be less stressful because you don't have to debayer, do color conversions and encode to prores format.
  24. Poll: You get more control with raw. Choosing debayer...

    You get more control with raw. Choosing debayer method, more pixels, more bit depth etc.
  25. Replies
    553
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    113,130

    Could it be possible to add an option to Cineform...

    Could it be possible to add an option to Cineform Studio for choosing to extract full image (2432 x 1366) or default crop size image (2400 x 1350) from DNG files? Or does this cropping have a special...
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