technique · 2 recipes
Object Portal
A prop opening contains a different space, with a tangible rim and depth-dependent occlusion selling the threshold.
Selected recipe
Object Portal
This is the default recipe for the Prop-Bounded World Portal family.
Free short AI video prompt
A starter line you can copy. The full timed recipe, still-image and production prompts are on the shot card.
Prompt rule: Keep the alternate world inside a tracked prop opening with rim/hand holdouts and coherent parallax; do not replace the exterior scene.
Object Portal: A prop opening contains a different space, with a tangible rim and depth-dependent occlusion selling the threshold. Keep the subject readable; motivate camera and light.
Technique guide
- When to use
- Reach for Object Portal when you need this effect: A prop opening contains a different space, with a tangible rim and depth-dependent occlusion selling the threshold.
- How it works
- Keep the alternate world inside a tracked prop opening with rim/hand holdouts and coherent parallax; do not replace the exterior scene.
- Common mistakes
- If the result does not follow this rule, it is not this technique: Keep the alternate world inside a tracked prop opening with rim/hand holdouts and coherent parallax; do not replace the exterior scene. Do not change multiple variables at once so the effect becomes unreadable.
How to read this page
Object Portal is one technique in Optical Effects. The definition states the single mechanism the frame has to show. The technique guide covers when to use it, the steps, the usual mistakes, how it differs from the neighbors, and what a successful take looks like.
The clip above is one reading, made with a third-party video model. Another model, or the same model on another day, can land on a different frame. It is an example, not a promise that a prompt will match it.
The free short prompt is a starter sentence. The shot card is the timed recipe: scene, start and end frames, action, light, and color. Three sample cards are free on the site. The rest are part of GrokCine Pro. A second name for the same shot keeps its own URL and points back at this definition.
When you write a prompt, keep the one mechanism in the definition, then name the subject, the motion, and why the light is there. Do not stack a neighboring technique into the same sentence. If the name or the example is wrong, send this page's URL from the contact page.
Recipe
8 seconds · single take
A magical-realist drama: in a grey factory canteen, a homesick young worker opens her metal lunch tin and finds inside it the tiny sunlit railway platform of the village she left behind.
Shot cards
The full recipe for Object Portal is a shot card
The full recipe for Object Portal is a shot card. The start and end frames, timed action, lighting and color specs, a camera parameter table, copy-ready still-image and video prompts and negatives are open to GrokCine Pro members on the web.
Related families
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Agamemnon Portrait LookA tragic bronze-toned portrait combines hard directional light, metallic warmth and a dark red-violet dusk. - Ink Riot
Ink RiotVolumetric ink blooms and liquid strokes occupy air around a readable photographed subject rather than merely tinting the image. - Fallen Angel
Fallen AngelA damaged sacred-light portrait suggests fallen wings through fabric or shadow, without requiring literal feathers.
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