
Oct 8, 2026
Best Free Online 3D Viewers in 2026: GLB, STL, OBJ, FBX
Six free ways to open a 3D file without installing much, compared on formats, upload, sign-in and limits, including the TRELLIS.2 browser viewer.

Most photo editing is selection work: mask the background, paint a layer, clone a corner. This editor works differently. You upload one photo and write an instruction. The model finds the person, the clothing and the scene, then rebuilds the parts your instruction changes.
That makes it good at atmosphere and styling, and less good at precision. Adding fog, swapping a plain wall for a haunted hallway, changing a hoodie into a cloak or adding stage makeup are all reasonable requests. Removing a specific stranger from a crowd or repairing a torn poster is not.
The workflow uses the same Image to Image tab as the costume generator, with Nano Banana Edit handling the edit through the site's KIE provider. One image per run.
Describe the new place, the light and the depth. "A foggy Victorian garden at dusk, warm lantern light, soft background blur" gives the model enough to rebuild the scene without inventing a new person.
Name the material, the silhouette and the color. "Black velvet cloak with a high collar and silver clasp" is more stable than "a cool Halloween outfit" because the model has concrete visual targets.
Keep makeup instructions modest. Heavy prosthetics, fully black eyes and extreme skin changes often break the face. "Subtle smoky eye, deep burgundy lip, pale matte complexion" is a safer range.
Fog, rain, drifting leaves, candlelight and moonlight are strong edits because they change the light without changing the body. Ask for the atmosphere and the light direction together.
A vintage film grade, a disposable-camera flash or a 1990s camcorder frame is a styling edit. Keep the person and pose fixed, and let the prompt change the color and texture.
The first recipe is a background-only edit. It is the safest way to make a plain photo feel seasonal without touching the costume.
Prompt recipe
Keeps the subject and clothing; replaces only the scene and the light.
Use the uploaded photo as the primary reference. Preserve the subject's face, expression, hair, clothing, body proportions and pose exactly as they appear. Replace only the background with a foggy Victorian garden at dusk, including dark autumn foliage, weathered stone, a few glowing lanterns and soft ground mist. Match the new light to the subject's original lighting direction so the person still looks photographed in the scene. Use photorealistic editorial photography, natural skin texture and a shallow depth of field. Do not change the face, outfit or number of people. Avoid text, logos, watermarks, extra limbs and distorted hands.
The prompt is pre-filled in the generator. Review it and the credit cost before you start.
The second recipe adds makeup and a moodier grade. It changes the face, so inspect the result closely.
Prompt recipe
A light beauty edit with a cinematic autumn grade, not a full prosthetic.
Edit the uploaded portrait into a subtle Halloween beauty photograph. Preserve the subject's recognizable facial identity, facial structure, skin tone, age, hairstyle, clothing and pose. Add tasteful Halloween makeup: soft charcoal smoky eyes, a deep burgundy lip, defined brows and a light matte finish. Keep the skin realistic with visible texture and natural pores. Place the subject against a dark autumn backdrop with warm rim light and a faint haze. Apply a cinematic film grade with deep greens, warm amber highlights and soft contrast. Do not change the person's identity, age or body. Avoid heavy prosthetics, black contact lenses, extra people, distorted anatomy, text, logos and watermarks.
The prompt is pre-filled in the generator. Review it and the credit cost before you start.
If the result fails, change one variable at a time. A shorter prompt with a clearer "keep" instruction often fixes more than adding another paragraph.
One edit costs 80 credits. The generator shows the cost before you submit, and a failed tracked task returns its reserved credits. See pricing for current packs.
This is not a replacement for a layer-based editor. It cannot guarantee an identical face, exact object removal or brand-accurate logos. Use it for concept images, social posts and mood, then finish precision work in a traditional editor.
Background and atmosphere changes are the most reliable edits. Start there, then move to a full costume change once you see how the model handles your photo.