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  1. @joaquin put together a great tip in the Nimble Collective support site on using Open EXR with DWAA compression for rendering.. It's definitely highly recommended! I've reposted it here because it's super helpful. ? ----------------------------------------------------------------------------------------------------------- Knowing which kind of image format to render your amazing animations in can make all the difference when compositing and finalizing your project. While you can find a more general overview of rendering settings and recommendations here, in this article I'll be going over some of the reasons why Nimble recommends using OpenEXR using the DWAA or DWAB compression formats. First created in 1999 by Industrial Light and Magic, this open image format supports multiple pixel sizes and floating point values as well as multiple lossless and lossy compression methods. OpenEXR can also store separate channels, specular, diffuse, alpha, normals, etc. in a single image file, this allows for ease of compositing and specific channel manipulation. The format also supports deep image buffers. OpenEXR has multiple compression formats, and picking the right one is important to obtain the quality of image that you need, and speed at which your chosen compositing program will handle the image. Several of the common compression formats for OpenEXR include Zip (per scanline), Zip (16 scanline), RLE, DWAA and DWAB. RLE: Run Length Encoding. The basic lossless format for compression, comparable to the Targa format Zip (per scanline) and Zip (16 scanline): Lossless formats using a compression method called Deflate. Lossless compression has a slower working speed than lossy compression. Zip (per scanline) compresses one scanline at a time while Zip (16 scanline) compresses blocks of 16 scanlines DWAA and DWAB: Lossy compression similar to JPEGs, compresses 32 scanlines at a time (DWAA) or 256 scanlines at a time (DWAB) Due to the comparable image quality and the working speed of using the DWAA or DWAB format compared to RLE or Zip formats, we recommend using DWAA or DWAB when rendering in OpenEXR.
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