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PPM
A dead-simple uncompressed image file format that stores raw pixel color values in plain form.
Portable Pixmap (PPM) is one of the simplest image formats: a tiny header followed by raw red-green-blue values for each pixel, with no compression. That simplicity makes it ideal for verification — you can read exact pixel values directly and compare them byte for byte. Here frames are captured to PPM specifically so rendering can be checked at the pixel level.
See also
- render targetThe image a GPU draws its output into — which need not be the screen itself.
- resolveCollapsing a multi-sample (anti-aliased) image down to one clean sample per pixel.
- post-processingVisual effects applied to the whole finished image after the 3D scene has already been drawn.