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Scene

Scene objects are used to define context. Including lighting, and procedurally or parametrically generated objects.

3D Asset

Import 3D Assets into your simulation

The number of samples determines how many unique items to sample out of the collection.

For example, if we have a collection with four different 3D models of fruit (apple, orange, pear, pineapple), if you set the samples to 2, it will randomly select two from that collection. If "Load Duplicate" is enabled, the same asset may be loaded more than once.

To select a collection, use a "Collection" block from the "Variables" submenu.

HDRI Lighting

High Dynamic Range Images or HDRI's are large images that project ambient light into your scene. the HDRI Lighting module allows the user to select from a drop-down menu of environment types.

With the HDRI lighting module, you load a variety of pre-loaded HDRI images that you can use as a background in your images. In addition, these images provide physically accurate environmental lighting. Project to ground: You can project your HDRI images to the scenes ground plane. Resulting in a semi-spherical projection. You can learn more about how this feature can be used when creating photorealistic images . Height: Height refers to the height of the camera when the HDRI was captured. Most HDRI images are taken between 2 and 3 meters off the ground. You can adjust this parameter to reduce distortion around the horizon, which might appear if your camera moves too high above eye level in the z axes.

Intensity: Set a minimum and maximum light intensity. The range will dictate the range of lighting brightness across all the images in your dataset.

Saturation: Sets a range for the color saturation of the HDRI background. This is a normalized value where 0 yields a greyscale background and 1 yields a full-color background.

Physical Sun/Sky

Adds a procedural sun and sky to the environment.

Sun Strength: Relative strength of the sun's illumination. It is recommended to use a low value (e.g. 0.1) to avoid over-exposure.

Sun Rotation: Rotation of the sun in the sky relative to the world origin where 0 degrees locates the sun at the positive Y world axis.

Sun Elevation: Elevation of the sun (in degrees) relative to the horizon. Sun/Sky Model: Nishita (), Hosek-Wilkie (), or Hosek-Wilkie (No-Shadow). If the "no-shadow" option is selected, shadow rays from the sun lamp will be disabled.

Ground Plane

This module generated a ground plane at the origin of the scene.

Shadow Plane: If "Shadow Plane" is enabled objects will cast a shadow on the ground plane.

Interior Scene

Generates an interior scene using a given room type preset.

Room Type: The room layout to use for the generated scene. Options: (bedroom, livingroom). (See Room Type for more information on room types.)

Room Height: The ceiling height of the generated room (in meters).

Wall type: The material to use for the walls in the room. Options: (Gypsum, Wallpaper).

Floor type: The material to use for the floors in the room. Options: (Oak, Maple, Tile, Ceramic).

Ceiling type: The material to use for the ceilings in the room. Options: (Wood, Gypsum, ACT).

Window type: The window shape to use. The "Tall" preset is approx. 2.3m tall. Options: (Standard, Tall).

Generate recessed lights: If checked, recessed lights will be generated in the ceiling of the room.

Color temp: Color temperature of the lights, in degrees Kelvin. See for more information.

Light strength multiplier: A factor by which to multiply the strength of the recessed lights. Setting both the min and max to 0 will disable the lights.

Room Type

Defines a room type, which uses accompanying object relationships to populate the space.

Room type: Choose from a list of room layout presets including "bedroom" and "living room" (more coming soon).

Object relationships: Object relationships created from the relationship editor which will be used to populate rooms of this type.