We can also store levels way beyond 100% white and 0% black.
In 32-bit, we’re doing all calculations with results that can have more than 4 billion different levels per channel, so rounding errors with multiple effects are totally eliminated. With multiple effects on a clip, this means we’ll get rounding errors for each calculation, with the danger of introducing banding and blocking. If not, it’ll be done in 8-bit.Ĩ-bit means the result of every calculation on the image can only have 256 possible levels per channel (RGB or YUV). If it’s on, rendering will be done in 32-bit.
#WARP STABILIZER NEEDS CLIP DIMENSIONS SOFTWARE#
If Software Only is chosen in the Project Settings, the bit depth depends on the Render at Maximum Depth switch. Video rendering and playback can be accelerated by the GPU (using CUDA, Metal or OpenCL) or entirely on the CPU (called Software Only). If you’ve chosen GPU rendering (CUDA, Metal or OpenCL) in the Project Settings, it will always be done in 32-bit unless you’ve used effects that are not GPU-accelerated.
This can be done in 8-bit per channel, or in 32-bit per channel. Let’s have a look at the rendering of video frames first.
#WARP STABILIZER NEEDS CLIP DIMENSIONS PRO#
More on this later.įor some reason there is no tooltip for Render at Maximum Depth in Premiere Pro 15.0, so you’re left to your own interpretation for that one. What does “Improves the video’s quality” mean? The explanation is also not entirely true: it doesn’t necessarily increase the encoding time. Not only is this vague, but it’s also not entirely accurate. “Rendering at maximum bit depth improves the video’s quality but increases how long encoding takes.” This is the explanation that Premiere Pro offers you when you hover the pointer over the Render at Maximum Depth button in the Export Settings. The Maximum Bit Depth switch also requests 32-bit float from the importer, which is otherwise only 8-bit. This is good because it will reduce banding and other artifacts while also keeping overbrights and super-blacks intact, never clipping levels. What does Maximum Bit Depth do?Īt first glance, it seems that the Maximum Bit Depth switch simply forces Premiere Pro to render supported effects in 32-bit with floating point accuracy. It should be safe to leave it at performance. Memory preferences can be set to be optimized for memory or for performance. I leave this set to the default, which is Performance. I always have my memory preferences set to Optimize rendering for Performance.Įven though the warning says that it’s “highly recommended” to set this to Memory, some users have reported that doing this will make their systems less stable. Unless you have a high-end computer with a super-high core count you shouldn’t run into memory-related trouble with any of these settings. Or ignore the message altogether, thinking “I have lots of RAM” like most of us do. But if you think it’s a cause for concern, you can go to the Preferences for Memory and set it to Optimize rendering for Memory. Please check Adobe Premiere Pro Support Center for recommended system requirements. These settings are designed for high-performance systems. Setting the Optimize Rendering preference to ‘Memory’ is highly recommended when Max Quality or Max Bit Depth rendering is on. Yep, if you choose to activate any of these two settings, you’ll get the following warning. OK, with that out of the way, let’s see what happens when you enable these settings in your sequence. When you export your timeline, you’ll see the same settings, one under the Video tab and one in the bottom part of the box. If you’ve already created a sequence, and didn’t pay attention to the settings, you can go to Sequence Settings ( Sequence > Sequence Settings) and change them there. If you create a new sequence manually in Premiere Pro ( File > New > Sequence), you’ll see this dialog. You’ll find both the Maximum Render Quality and the Maximum Bit Depth settings in at least three different places in Premiere Pro: In the New Sequence dialog, in the Sequence Settings and in the Export Settings.
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