function xmp_to_cube(xmp, src_space, target_space, N): ops = parse_xmp(xmp) T_X = compose_ops(ops, src_space, target_space) grid = initialize_grid(N) # regular N^3 samples in [0,1] for each sample p in grid: rgb_in = denormalize(p) rgb_out = T_X(rgb_in) grid[p] = clamp_and_convert(rgb_out) grid = post_process_grid(grid) write_cube_file(grid, metadata=xmp_summary)
There are several browser-based tools that allow for direct uploads. However, be cautious with these; complex presets involving masking or grain often don't translate perfectly through simple web-based algorithms. Step-by-Step: Converting Your First Preset xmp to cube converter
If you are a serious colorist, do not buy "Lightroom Presets" expecting them to work in Resolve. Instead, buy CUBE files directly. If you must convert, use the 3D LUT Creator method and always, always test the resulting LUT on a Log clip of a human face before relying on it for a project. Instead, buy CUBE files directly