Feed your reference sketch and a count. One control prompt asks the model for N variations in your exact hand — line only, no render. Drive how far they stray with the intensity dial.
1
Your sketch
Upload as the reference. It carries the hand + the subject.
Notes optional — extra direction
Variation intensity
Line style optional
Variations
Variation prompt
Set intensity + count, then build. Paste with your reference sketch uploaded as image 1.
Use: upload your sketch into GPT (it holds the line where Nano Banana renders), paste this prompt, generate.
Redraw any image in your hand. Image A is the subject; image B is your sketch style. The result comes back as a line sketch in your vocabulary.
A
Content
The thing to draw. Its forms are preserved.
B
Your sketch style
The hand to draw it in. Matched exactly.
Line style optional
Generations
Style-apply prompt
Build, then paste with image A (content) + image B (your sketch) uploaded.
Use: upload content as image A and a sketch of yours as image B into GPT, paste this prompt, generate. Cleaner content in = cleaner sketch out.
Render a sketch in a referenced style. Image 1 is your sketch (design preserved); image 2 is the look to apply. HARDLOCK PLOCK pushes for exact reference-style match.
1
Your sketch
The drawing to render. Design preserved exactly.
2
Style reference
The look to apply. Matched via HARDLOCK PLOCK.
Style notes optional — the reference does the work
Clean plate
Omit all callouts, leader lines, inset diagrams, spec lists, signature & badges entirely — not turned into placards or screens. Only the physical machine stays. Add your text in PSD.
Render prompt
Set options and build. Paste with image 1 (sketch) + image 2 (style reference) uploaded.
Use: works in GPT or Nano Banana. NB renders eagerly, which is what you want here.