Speedgrade Raw & DPX Workflow CS-6

[Mike Tiffee]

Here are a bunch of Speed Grade videos recently uploaded. Good sneak peek.
http://tv.adobe.com/search/?q=SpeedGrade

[Subhadip Sen]

SpeedGrade CS6 lives up to its name. It is fast, really fast. Running on an AMD Radeon HD 7970, it seems impossible to knock it out of real-time, even at 5K (the bottleneck is the CPU decompression). I gave up after adding 13 layers and the GPU usage was only 65%! You would need multiple GTX 580s in Resolve for this kind of performance.

It has its share of quirks, more on those later.

[shashbugu]

SpeedGrade CS6 lives up to its name. It is fast, really fast. Running on an AMD Radeon HD 7970, it seems impossible to knock it out of real-time, even at 5K (the bottleneck is the CPU decompression). I gave up after adding 13 layers and the GPU usage was only 65%! You would need multiple GTX 580s in Resolve for this kind of performance.

It has its share of quirks, more on those later.

lol

[Mohammed El Sharqawy]

SpeedGrade CS6 lives up to its name. It is fast, really fast. Running on an AMD Radeon HD 7970, it seems impossible to knock it out of real-time, even at 5K (the bottleneck is the CPU decompression). I gave up after adding 13 layers and the GPU usage was only 65%! You would need multiple GTX 580s in Resolve for this kind of performance.

It has its share of quirks, more on those later.

and how does the 580 perform with SG?

[Brandon J.F.]

Mike, thanks for posting this.

[paulherrin]

Do you have to modify your project to all sit on one video layer in premiere, or is there some way to export an EDL and preserve your editing layers. What about transitions, transforms, etc... will those work in an EDL?

Finally, when you export the DPX sequences, does it just turn into one long element in Speedgrade, or will they stay cut up? What about transitions and keyframes in that case?

[Subhadip Sen]

Tried out GTX 580. There's some image corruption with the latest 301.xx drivers, had to roll back to 296.xx with which everything works fine. Performance is down from 7970 but still pretty good. The timeline that was playing real-time at 1/2 res (2560x1280) is now dropping back to 1/4 (1280x640). GPU usage is around ~90%. With a more realistic array of layers, GTX 580 handles things pretty easily at 1/2 res for 5K files. Also, I noticed 12 GB RAM usage, which seems to indicate that SG caches rendered frames aggressively. I will test it thoroughly next weekend, these are just preliminary observations and it is quite possible I am missing something.

By the way, give it a try - follow Kemalettin's instructions here: http://reduser.net/forum/showthread....l=1#post997542. Would love to hear how it's working for you guys.

[Gunleik Groven]

As you note Speedgrade is very new to the Adobe family. We did what we could in this release to have some integration. It won't be perfect for everyone. We are going to be looking for feedback as we work on much deeper integration in the future. For the time being. The Send to Speedgrade feature exports your sequence as a series of DPX sequences that you can grade. Premiere also exports EDL and Speedgrade imports EDL. Speedgrade has native support for R3D's and lots of other popular formats and their relinking is great.

Cheers

Dave

grading from DPX's baked with editing metadata is probably not a very good startingpoint, and also a bit of a strange choice, considering one of speedgrades strongpoints is its (RED and other cameras), RAW integration...

G

[Lin]

Tried out GTX 580. There's some image corruption with the latest 301.xx drivers, had to roll back to 296.xx with which everything works fine. Performance is down from 7970 but still pretty good. The timeline that was playing real-time at 1/2 res (2560x1280) is now dropping back to 1/4 (1280x640). GPU usage is around ~90%. With a more realistic array of layers, GTX 580 handles things pretty easily at 1/2 res for 5K files. Also, I noticed 12 GB RAM usage, which seems to indicate that SG caches rendered frames aggressively. I will test it thoroughly next weekend, these are just preliminary observations and it is quite possible I am missing something.

By the way, give it a try - follow Kemalettin's instructions here: http://reduser.net/forum/showthread....l=1#post997542. Would love to hear how it's working for you guys.

Hi Subhadip,

you can control the amount of RAM being used for the cache in the SpeedGrade user settings: Hit 'S' to switch to the settings tab, then click on 'Cache'. The default is 50% of your RAM, which is usually a value you don't have to change unless you are using Premiere/After Effects or another RAM-heavy application in parallel.

Lin

[Lin]

grading from DPX's baked with editing metadata is probably not a very good startingpoint, and also a bit of a strange choice, considering one of speedgrades strongpoints is its (RED and other cameras), RAW integration...

G

Gunleik - the DPX route is meant as an 'will always work' fallback method. For RED users the EDL route is very straightforward and much more elegant. While SpeedGrade, because of where it comes from, supports basically all of the 'Digital Film' file formats, it does not yet support the vast amount of formats that comes from come from cameras mainly used in the broadcast industry. For those formats, 'Send to SpeedGrade' is the right tool for now.

Lin