David Catt
Forum Replies Created
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According the the performance figures available on Apple’s website, the new 12 core MacPro will provide a great performance boost for many who are upgrading from an older 8 core Mac with a single GPU for CUDA processing but a 2010 12 core MacPro with an expansion chassis and a couple of GTX 680s or Titans will still have much better performance.
Red are now using NVidia CUDA GPUs for processing as is stated on the Reduser forum, “we are working in collaboration with Nvidia for CUDA support that should drop in October… it will be well worth the wait as internally with CUDA we see a further boost in performance.” (See complete post here https://www.reduser.net/forum/showthread.php?105522-IBC-GPU-Build-REDCINE-X-Beta-21 ) Obviously no CUDA capability with the MacPro’s ATI Fire GPUs.
May be sensible to wait a few weeks before making the move.
David Catt
ColorScene -
Hello Scott,
I provide Resolve training and I am based in the Alpharetta, GA. Please contact me offline on david@color-scene.com
ThanksDavid Catt
ColorScene -
Resolve’s Lift (Black), Gamma (Mids) and Gain (White) operate exactly as they do on the 2K. Lift or Black pivots around the 100% white point and the Gain (White) pivots around the 0% or black point. Gamma is applied after Lift and Gain and raises the image values by a power as set by the position of the Gamma control. This means that adjusting the  gamma does not change the 0% or the 100% values of the image. This can best be seen using a linear ramp.
What you are asking for is for the pivot points to be adjustable. Some color correctors do provide this but these are typically used when color correcting for film deliveries and working in Log space. Resolve probably needs adjustable pivot points for film deliverables, now think what would happen in linear (TV) space. Â If the pivot point was set to 50%, as you adjust the gain down, the gain would reduced to the 50% point but levels below this will lift off black, just like adjusting the “Contrast” control in Photoshop and even less desirable.
Custom Curves do provide the ability to adjust levels of the image independently, i.e. white levels can be adjusted without affecting the mids or blacks. If points could be added to the Custom Curves for lows, mids and highs and mapped to the appropriate trackballs, perhaps this would provide the best solution.David Catt
ColorScene -
We have seen this problem before and was due the version of driver you are using.
Email nathan.gleit@filmsys.com who can help with the driver versions that work.
David Catt
Film Systems -
Resolve was originally developed on Windows and compiled in QT, a cross platform compiler which could compile both Linux and Windows. There were a lot of other less obvious issues using Windows such as file system performance and instability. There was no intention at that time of releasing the Windows version. It was just for convenience allowing engineers to develop code using the same laptops that they were still using to develop the 2K. BMD’s decision to move to Mac made sense as the environment is similar to Linux plus the availability codecs.
David Catt
ColorScene -
Resolve 8 (latest beta)
10 nodes – 24fps
11 nodes – 23.5fps
12 nodes – 22fps20 Nodes – 14FPS
SYSTEM:
2.93GHz Mac Pro 12 core
12 gb RAM
GUI: ATI 5770
Film Systems Expansion Chassis with 2 GPUs and
16TBs Raid 5 storage
Proc: 2 x Film Systems 470
Video: Blackmagic Decklink Extreme 3D
Storage Benchmark with 12MB files: Write 1GB/s Read 850MB/s
CUDA Driver: 4.0.17
Decklink Driver: 7.9.5 (Resolve version)David Catt
ColorScene -
Those fortunate to use the Resolve control surface can use the “:” and the “,” that is the “colon” key and the “comma” key. These can be found on the right hand side of the numeric key pad and provide a “-2 Preview” or “-1 Preview” respectively.
David Catt
ColorScene -
Could the “A/C mode” switching and “Group” functions help you achieve this.
“Split” the clips using the EDL in the Pre-Conform mode then toggle the “A/C Mode” which will sort the clips in source time code order. Now highlight all the similar clips, right mouse clip on one of the VSRs and select “Add into Group”. Everything in this group will now contain the same color correction. Other scenes can be added into new groups, and each group named accordingly.
This doesn’t give you quite what I think you are asking for but it can be a great time saver and help maintain color consistency throughout the program.David Catt
ColorScene -
Are you are using the same section of the Red clip? If so you have to use batch unlink. If you have loaded one long Red clip into the media pool and different sections of this clip are used for different scenes, it is best to split the clip in to several small clips using the EDL. Delete the long clip from the media pool. Then find the clip in the browser and right click to show a drop down menu. Select “Split and add into media pool using EDL”. Now you should see several clips in the media pool and not the one. Each clip can be graded and sized independently.
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The Render cache feature is a little buggy and you would be advised to not use it at the moment. Leave the cache mode switched off and render at the end of the job so you clients can see playback. Alternatively you could use the Proxy mode which should allow you to see smooth playback without rendering at all, as long as you don’t mind viewing lower resolution images.