A faint grid across your upscale
Tiled upscalers denoise each tile independently, leaving a lattice at the joins. Tile overlap, feathered masks, and the seam-fix pass that actually removes it.
Tiled upscalers denoise each tile independently, leaving a lattice at the joins. Tile overlap, feathered masks, and the seam-fix pass that actually removes it.
Faces occupying few pixels get invented, not drawn. Prompt shallow depth of field, crop-upscale-and-composite, or reframe so the crowd never resolves.
A canvas far above native size duplicates subjects and limbs. Generate at the model's real ceiling, then upscale, and the test that finds that ceiling.
Cranking sampling steps almost never fixes softness. A three-question diagnosis separating resolution ceiling, sampler mismatch and guidance from step count.
Reve 2.1 generates natively at 16 megapixels. Where that deletes an upscale step from a print or thumbnail pipeline, and where a dedicated upscaler still wins.
A 2x2 variation grid is one file, not four assets. How to slice it into individual images you can actually upscale, animate, or drop into a timeline.
Older lip-sync models rebuild a tiny mouth crop and paste it back soft. Finish with a face restore, or switch models when the patch is structural.
Going straight to 4K amplifies artifacts you could have removed cheaply. The pass order that works, and what each pass can and cannot fix.
When a cheap generation plus a dedicated upscaler beats the top tier, and when the upscaler invents detail you did not want. A rule keyed to four shot types.
Generative upscalers re-draw letterforms and will respell a word that was already right. Mask text out of the pass, or drop denoise on text-bearing images.
A generative upscale redraws identity. Keep face denoise at or below 0.35, mask the face out of a hotter pass, and check a 100 percent crop before you commit.