Norman Black
Forum Replies Created
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Vegas has a preference to close all media when not the active application. When you switch back it reopens all media files. This option exists so one can modify media files while keeping Vegas open.
Maybe Vegas got confused about active application state and your switching to something and back helped refresh Vegas about who was the active app, as it were.
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Sounds like the HD4000 has more power than the other video chip. With OpenCL at least. Always try all options to see which works best for you.
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By default, Text in all the Text generators in Vegas have a transparent background. Only the text itself adds anything to the output stream. Maybe that is not what you are asking as per transparent.
As for installing fonts, that can depend on Operating system version and I can only remember Windows 7+. Fonts are installed in the Windowsfonts folder. To install a font you have, right click the font file and choose install. Windows will copy the font to the fonts folder and do all other necessary tasks for installing.
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Thanks,
Norman out.
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“OpenCL does not help with your rendering. That is your imagination. What it does is help with OFX manipulation of frames but the actual compression of the video itself is only helped by Cuda in Vegas.”
Excuse me. Only CUDA? What the heck is the Main Concept AVC OpenCL encoder. It is OpenCL, not CUDA. The Sony AVC encoder runs a little faster with GPU allowed. I don’t have CUDA, only OpenCL. These two statements are independent of the Video pref GPU option.
Yes, videos cards do have decoders built-in. DXVA uses them. Some may have an encoder. Intel has Quicksync. Vegas has no encoder option that uses those features for encode. Vegas might use the decoder.
OpenCL does not expose encoder/decoder options and might be implemented in hardware. The is too hardware specific. CUDA does expose these features on applicable hardware. One difference between OpenCL and CUDA. Exposing the texture hardware is another thing CUDA exposes. OpenCL concentrates the GP compute.
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Crippled compared to what. A 500 series. In ways the 600 beats the 500, but mostly game/render (OpenGL, DirectX), as designed. It is just different. No SDK can change that.
Kepler is not crippled and only game optimized. The Tesla K20 (GK110) is Kepler architecture and is a pure compute card. The K20X is Kepler and is in the Titan super computer, hence where Nvidia got the name Titan for the new consumer card (if $1000 can be considered consumer).
Kepler is an over all program and data flow architecture. Not a chip. The 600 series GK102 and Tesla K20 (Titan video card) GK110 are Kepler but implement it differently as they target different markets. The data and program flow are the same in all Kepler, and really not much different than Fermi. These differences applications really need not worry about.
I use GPU for Sony AVC and Main Concept AVC, on AMD, via OpenCL. So CUDA is not the only implementation for file renders.
Vegas GPU use is not used for preview only. File render uses it also as Vegas generates the video stream for both preview and file render. Only certain things in Vegas use GPU, so you may or may not see a performance boost.
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I like “post edit ripple”. Shortcut “F”. I normally have leave auto ripple off. Post edit ripple options can do more than typical auto ripple.
No matter what you pretty much can work how you want with the shortcut you want with Vegas by customizing commands.
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“but this is the point you need to look at, you need software specifically designed to support the new computing architecture found in GTX 600 series Kepler cards… ”
What the heck is this supposed to mean?
CUDA and OpenCL are more similar than different in general compute and neither one cares about Fermi/Kepler/GCN or whatever. And they never will. That is the whole point. Hardware independence. They are programming languages. Both AMD GCN (79xx) and Nvidia since Fermi are designed around thread parallel execution, so optimizing an app for “that” optimizes for both AMD and Nvidia these days.
Kepler did one thing. It left out execution units/features which games typically don’t use. This sacrifices general purpose compute performance, that CUDA/OpenCL apps do. There is nothign bad about its compute performance. It actually does very well as it is more efficient than Fermi.
I agree Nvidia is creating segmentation with the 600 series visa vie Quadro.
Why do this? To make a smaller chip, which increases yields and profits and saves power. Or to look at it another way, by saving power you can make a card with the same power demands as before but more execution units optimized to typical game performance and then really kick arse in that arena.
Titan (GK110) is Kepler but puts back all the “compute” features the 600 left out. GK110 also adds 64-bit performance which does not apply to our world here. Also it is just a bigger chop overall. More everything.
“though personally I’m not very fond of OpenCL implementation in Vegas…”
What does this mean?
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The Main Concept AVC software encoder is much slower than the Sony AVC encoder. In the ballpark of 2x difference.
The Main Concept OpenCL and Cuda encoders are very fast but they do not have near the quality of the software encoder. This quality thing only means something at low bitrates. x264 is the King at low bitrates with Main Concept likely coming in second or third. No idea where Sony ranks. It is a captive encoder and does not get ranks in roundup tests. None that I have seen and not that I look that hard for it either.
the Sony AVC encoder does not get much of a performance boost from GPU use, unlike Main Concept AVC. With Main Concept they are actually completely different encoder implementations with GPU and without, and hence the quality difference.
I wish we could have x264 as an encoder option. It is faster than the GPU encoders at similar quality and has better quality when you crank it up, where of course it encodes much slower.
Sony needs to publish an encoder plug-in spec so someone can do an x264 encoder plug-in. x264 is GPL so Sony cannot include it in Vegas.
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Of course GPU accel will work with AMD. Why would it not? The not working things are really Vegas bug issues and that applies to all video cards on all brands.
I have had an AMD 5850 and recently upgraded to a 7950. You can get a 7950 for under 300. Most will be right at 300. It is probably the fastest “compute” card for that price unless you can get an older top 500 series for a better price. The AMD 79xx cards were a new design optimized for general purpose compute. Nvidia optimized the 600 series cards to game like render performance verses the 500 series. Still, the 600’s are no slouch to be sure.
You can look at benchmarks for real world verses paper, at places like Anandtech but that shows 90% games. Anandtech does have a set of “compute” benchmarks they reliably run on all cards they test. Not much but better than nothing.
Exactly how all that all that measures to Vegas who is to say. Just like the game benchmarks, one card “wins” this and another wins that. Is Vegas, this, or is it, that.