3D Scenes

How the 3D Scenes section works#

1. Top — the project’s scenes. Thumbnails; on the right of the bar, Add 3D scene, Clear scene and Delete 3D scene.
2. Center — the scene. The toolbar is above it, the orientation cube in the corner, the flight keys and the flythrough timeline at the bottom.
3. Right — Previzes and viewpoints and Assistant. Saved flythroughs and viewpoint captures of this scene, and the 3D scenes assistant chat.

01Create a scene#

Click Add 3D scene. In the “New 3D scene” window:

• Location — which project location the scene belongs to. Scenes are grouped by location, and a shot with that location sees them in its picker right away.
• Platform — the floor size in sectors, in meters or centimeters. For the Garden Ring we took a long 30 × 80 m avenue.
• Walls — from “Platform only” to “Four walls”. A street needs three: two along the sides and one at the end.
• Wall height, Time of day and Sky markup.

You can also create a scene from a shot: on the Previz tab, Create 3D scene. But it is easier to prepare scenes here, in the section, and later just pick a finished flythrough from the shot.

02Dress the walls and place the characters#

Click a wall to open the face panel: upload an image, pick from the library, set a color, or use Prompt for this wall to generate its texture. For a street flythrough, the location’s views work well on the walls — the cardinal directions from the Locations section.

Add characters and objects with the Add button on the toolbar. A character in the scene is a gray mannequin with a label and the height from its profile; the primitives are a cube, sphere, cylinder, cone and plane.

The fastest way to set up a scene is through the assistant. Here is the task for the Garden Ring scene:

03Fly the camera#

The keys are shown in the corner of the scene: W A S D — forward, left, back, right; R and F — up and down.

On the toolbar:

• Save as start and To start — remember a camera position and return to it.
• Show the camera view during playback — watch the flythrough through the camera.
• History and undo — every change to the scene can be rolled back.
• FOV — the lens field of view in degrees; a smaller angle means a longer focal length.
• Speed — the flight speed.
• Open fly mode on phone — a QR code: the phone becomes the camera, and its gyroscope turns it.

04Draw a path#

Flythrough path (T) opens the path panel. Fly the camera and set points with the space bar — the path is smoothed between them. The panel sets the duration and where the camera looks: along the path, watching an object, or a recorded look.

This is how the flythrough looks through the camera, with Show the camera view during playback on:

The assistant can set the path too — as in the task above: height, direction, duration and whom to watch. For the descent to the café on Arbat we asked this:

05Or record a flight by hand#

If a path is easier to fly than to describe, click Start recording in the corner of the scene and fly with the keys — the camera movement is recorded. Stop recording with the same button.

A recorded or drawn flythrough lands on the timeline at the bottom of the scene. You can play it, trim it with the handles or erase it with Clear flythrough.

Capture viewpoint next to it saves a still image from the camera. You can use it in a shot as the key frame or a reference.

06Save the previz#

Save previz renders the flythrough to a video in the project’s frame format. Rendering runs in real time, so a 7-second flythrough takes about 7 seconds to save. Finished previzes are on the Previzes and viewpoints tab and in the project library.

This is what a previz looks like — a rough flythrough video. Here is the previz of shot 1.13 in the project «ЧП в пионерском лагере» (Incident at the Pioneer Camp): a flight over the camp alley, with cones for fir trees, boxes for buildings and a mannequin for the character.

07Use the previz in a shot#

Open the shot and its Previz tab. Take a finished flythrough with From library → the 3D scene folder → Set as shot previz. Here you can also Choose 3D scene and record a flythrough right from the shot: such a previz is linked to the shot automatically.

On the Video tab, before generating, turn on Send previz → Original: the flythrough goes to the model as a reference video. The depth mask is an option for when you need only the frame geometry; generate it first on the Previz tab.

The result: on the left, the previz of shot 1.13; on the right, the Seedance 2.5 video made from it. The camera follows the same path, and the model paints in the winter camp from the shot’s prompt and references.

What’s next#

How previzes fit into the whole path from text to a finished film — see the “From fairy tale to film” guide. The shot’s video and its settings — see the “Shots” guide.