http://crookedpathfilms.com/blog/201...port-settings/
"IMPORTANT NOTE ABOUT RENDERING TIME: Make sure you do not select “Use Maximum Render Quality” if you are utilizing the accelerated GPU graphics (Mercury Playback Engine). This will not improve your video and will only slow down the rendering speed by as much as 4 times!"
http://blogs.adobe.com/premiereprotr...e-pro-cs5.html
"For export, scaling with CUDA is always at maximum quality, regardless of quality settings. (This only applies to scaling done on the GPU.) Maximum Render Quality can still make a difference with CUDA-accelerated exports for any parts of the render that are processed on the CPU...
When rendering is done on the CPU with Maximum Render Quality enabled, processing is done in a linear color space (i.e., gamma = 1.0) at 32 bits per channel (bpc), which results in more realistic results, finer gradations in color, and better results for midtones. CUDA-accelerated processing is always performed in a 32-bpc linear color space. To have results match between CPU rendering and GPU rendering, enable Maximum Render Quality."
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Here is what I got out of after reading those two sites:
I should turn it off for it's always ON (when CUDA MPE is used) regardless I check or uncheck it.Turning it ON only offloads the calculation to CPU (instead of GPU) hence slowing down the previewing and encoding performance.
So I guess I should have Maximum Render Quality setting turned OFF in both of squence settings and export settings.
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However, David Knarr of Studio 1 Productions suggest otherwise:
http://www.studio1productions.com/Articles/PremiereCS5.htm
"When you startup Adobe Premiere CS5 and you don't have a certified video card (or one that is unlocked) the Mercury Playback Engine is in software rendering mode and by default the Maximum Render Quality mode (or MRQ) is to OFF.
(Maximum Render Quality mode will maximize the quality of motion in rendered clips and sequences. So when you select this option, the video will often render moving objects more sharply. Maximum Render Quality also maintains sharp detail when scaling from large formats to smaller formats, or from high-definition to standard-definition formats. For the highest quality exports you should always use the Maximum Render Quality mode.)
When you unlock Adobe Premiere CS5 so the Mercury Playback Engine can use almost any newer NVidia card (or if you are using a "certified" NVidia graphics card), the Mercury Playback Engine will be in the hardware rendering mode and the Maximum Render Quality mode will be turned ON.
Since the software mode is not set to maximum render quality, it can sometime render faster than the hardware render, but a a loss in qualitly. If you set the software to maximum render quality you will see that it is very, very slow compared to the hardware render.
Here is how to set the Maximum Render Quality.
1) Open up Premiere CS5
2) Click on Sequence at the top of the screen
3) Then select Sequence Settings
4) At the bottom of the window select Maximum Render Quality and click Okay
It is always best to be using the Maximum Render Quality mode,"
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Now, I'm lost.