Patchwork is a GPU mosaic plugin for After Effects and Premiere Pro that gives you the control the native Mosaic effect never had. Size cells in real pixels or lock them to the comp as an exact count so nothing lands half-off the edge, set width and height separately, stagger rows into brickwork, rotate and reposition the grid, and morph cells from hard squares to round dots with grid lines you can draw and color. Then there's VariPixel, which breaks cells into smaller cells only where you want them: pick a channel from luminance, lightness, hue, saturation, red, green, blue, or alpha, drag a range across its histogram, and just those areas resolve into finer detail while the rest stays boldly blocky. Gradient tinting, RGB shimmer, and built-in blend modes finish the look without duplicating layers, and a preset browser carries your setups between projects. Everything renders on the GPU across Metal, CUDA, OpenCL, and DirectX.