A Color Grading Tool You Can Touch
Open source color grading tool where you manipulate color by grabbing it. Your image's entire color palette is rendered as a 3D point cloud you can rotate, select regions of, and sculpt directly. Built in perceptually uniform color space, so what looks like a small move is a small move. Color grading tools have always been sliders and curves. This one lets you touch the color.
ColorSculpt starts from the fact most color tools hide: color is already three-dimensional. Every pixel lives somewhere in a volume. We just usually flatten that volume into sliders, curves, and wheels.
The app renders an image's palette as a point cloud in OKLAB space. You can orbit it, select a region, push that region through space, and watch related colors shift smoothly in the image. Instead of guessing which slider maps to the change in your head, you move the color itself.
The idea came from seeing a 3D LUT viewer years ago and wanting to reach inside it. ColorSculpt is that impulse turned into a working tool: grab the color shape, sculpt it, see the image respond.