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Type: Posts; User: Ralph B

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  1. Replies
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    Yes, this would be my hope, too. Holding the data...

    Yes, this would be my hope, too. Holding the data at the RGB level would be beneficial to green and blue screen work. As we have seen, converting to YCbCr and then back to RGB create artifacts that...
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    Well, last year I built a new machine using a 16...

    Well, last year I built a new machine using a 16 core Threadripper 2950x and in Davinci it was aproximately 50% slower than my 4 year old, 8 core 5960X which was running at 4.2 GHz. To say the least...
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    Hope you'll run some tests when it's convenient.

    Hope you'll run some tests when it's convenient.
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    I believe it's possible to temporarily disable...

    I believe it's possible to temporarily disable one of the GPUs in Davinci's preferences. No need to physically pull it out of the box. If you're ever so inclined, it would be very interesting to see...
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    Actually, I use temporal noise reduction quite...

    Actually, I use temporal noise reduction quite often. I also have a 1080 ti. Have you done any tests comparing one GPU to two in this regard? Saying "a second GPU shines" does not tell me much. I...
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    Have you done any testing comparing one GPU to...

    Have you done any testing comparing one GPU to two? I'm really curious to know which areas benefit from it and which do not. It's difficult to find solid information on this.

    Thanks.
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    If there is enough demand for it, BM will do it,...

    If there is enough demand for it, BM will do it, because they want Davinci to do EVERYTHING. That fact should be clear by now. You must remember, Prores RAW is in it's infancy. As more and more...
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    Which version of the beta were you using? Also,...

    Which version of the beta were you using? Also, are you PC or Mac?
  9. Replies
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    This creates a problem to be sure. The only...

    This creates a problem to be sure. The only solution I see is to revert to the older firmware if you need to shoot CDNG. Which brings me to a question I'd like to ask the community - can you revert...
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    Usually when a custom key doesn't work, it means...

    Usually when a custom key doesn't work, it means that key is still assigned to another function somewhere. You should double check.
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    Keyboard Shortcut to View a Node?

    Lately I've been developing some very complicated node structures on the Color page. Many times I wish I could click on a node and see it's output on the timeline monitor. Is there a keyboard...
  12. Thanks, but that doesn't help at all. In fact,...

    Thanks, but that doesn't help at all. In fact, looking at the Keyboard Customization, I don't see any place to assign keys to the various pages.
  13. How Can I Assign Keyboard Shortcuts to Go To Edit & Color Pages?

    I frequently bounce between the Edit and Color pages, and would like to assign keyboard shortcuts for that. Ideally, I would like E to go to the edit page and C to go to the color page. Can this be...
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    I wasn't clear enough. It's not just focal...

    I wasn't clear enough. It's not just focal length, but also aperture that causes the problem. Your Tokina and Olympus glass are slow enough that they escape the issue. Lenses 12mm or shorter and f2...
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    Looks normal to me, albeit a little soft on the...

    Looks normal to me, albeit a little soft on the focus on some shots. Try this - in Davinci under LUTs/3D LUT/Arri, apply Arri Alexa LogC to Rec709 to your clips. See how that looks to you. I don't...
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    Yes, it is. To be clear, I've used this lens on...

    Yes, it is. To be clear, I've used this lens on three other cameras - Panasonic GH5, GH2, and Sony A7s via a MFT to E-mount adapter. On all of them, the picture is flat and nicely focused all the way...
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    This is an excellent idea. Brian is an optical...

    This is an excellent idea. Brian is an optical expert in this area. If anyone can get to the bottom of it, it's him.
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    It's not an imaging circle issue. That's the...

    It's not an imaging circle issue. That's the point I'm trying to make, and people seem to be in denial of it. The BMP4k camera itself is creating the curvature of field on fast, wide angle lenses...
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    This is most definitely a BMP4K problem and not a...

    This is most definitely a BMP4K problem and not a lens issue. To repeat for those who might have missed it in my earlier post - the 12mm Rokinon lens which results in curvature of field on the BMP4k,...
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    It appears Blackmagic let one slip through the...

    It appears Blackmagic let one slip through the cracks here. I wonder if this is something that could be fixed in a future revision of the sensor.
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    I confirm the problem. Very soft edges with a...

    I confirm the problem. Very soft edges with a 12mm Rokinon lens. This lens is absolutely fine. Not only is it sharp corner to corner at f2 on a GH5, but also on a full APS-C size sensor. What you are...
  22. To Davinci Team: Please Add Support fro HAP Codec!

    Not many people seem to know about HAP codec, but it is absolutely fabulous.

    Check out their homepage: http://hap.video/

    HAP uses the GPU for accelerated encoding and decoding, making it...
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    Here's a report from someone who opened up the...

    Here's a report from someone who opened up the Braw SDK and found that Braw is indeed using a form of Y'CbCr encoding.

    https://cml.news/g/cml-raw-log-hdr/topic/braw_codec_analysis/25749037
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    Not sure what other "situation" you're referring...

    Not sure what other "situation" you're referring to.
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    Same result for all ratios. I only showed a few...

    Same result for all ratios. I only showed a few to keep the size of the post manageable.
    You can download the original clips and see for yourself.
    ...
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