Performance preferences
You can set various performance preferences to optimize Corel Painter. For example, you can change memory options such as the amount of memory (RAM) used by the application, choose processor (CPU) or graphics processor (GPU) settings, or specify the volume name (macOS) or drive (Windows) that you want to assign as a scratch disk.
In addition, you can optimize performance by disabling or hiding certain features that you don’t need. For more information, see What settings do I use to ensure the optimal performance of Corel Painter?
You can also run the Brush Accelerator utility to evaluate your system’s GPU, CPU, and memory. The test results indicate whether your system’s GPU, CPU, and memory meet, exceed or are below the recommended specifications.
The performance preferences are described in the following table.
Processor (CPU) preference |
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Allows you to specify the number of cores that you want Corel Painter to use. If you use all of the computer’s available cores, it may impact the performance of any applications that you have running in the background. You must restart Corel Painter for this change to take effect. |
Graphics Processor (GPU) preference |
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Use the Graphics Processor (GPU) to accelerate brush performance
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Allows you to enable or disable your system’s graphic processor (GPU) You must restart Corel Painter for this change to take effect. |
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Allows you to select which graphics processor (GPU) Painter uses to accelerate brush performance |
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Changes the percentage of RAM memory used by Corel Painter, which is set to 80% by default. You can dedicate as much as 100% of the memory to Corel Painter. The lowest percentage you can choose is 5%. You must restart Corel Painter for this change to take effect. |
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Allows you to undo and redo up to 256 levels of changes The number of Undo levels applies across all open documents. For example, if you set 5 undo levels and have two open documents, undoing three operations on the first document leaves you with only two undo operations on the second document. In addition, setting multiple undo levels uses a significant amount of disk space. If you perform multiple operations on the entire image, the whole image must be saved for each undo. |
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Allows you to specify the volume name (macOS) or drive (Windows) that has free memory to allow Corel Painter to perform an operation if your computer runs out of RAM To ensure the optimal performance of scratch disks, consider the following: • Choose a drive that does not contain the files that you are currently working on. • Choose a different drive than the one used by the operating system’s virtual memory. • Defragment the scratch disk drive on a regular basis. |
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High Quality Display (disable to improve performance of high resolution paintings)
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Applies smoothing to the current view to minimize pixelation when zooming. Disabling this check box improves performance when working on high-resolution paintings. |
Use memory (RAM) to cache application UI (enable to improve performance)
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Uses RAM to cache the application UI to improve performance. Enabling this check box may require a restart of Corel Painter. |
Brush Accelerator preferences |
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Run Brush Accelerator Now
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Runs the Brush Accelerator test to evaluate your system’s processor (CPU), graphics processor (GPU), and memory (RAM). The test typically takes a few minutes. It is recommended to save and close all open documents and to not run any unnecessary applications during the test. |
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Displays a report of the Brush Accelerator test results in the Welcome Screen |
Help with Performance Settings
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Displays the Help for Performance preferences |
To specify performance preferences
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Do one of the following:
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(macOS) Choose
Corel Painter 2023 menu
Preferences Performance.
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(Windows) Choose
Edit Preferences Performance.