This page provides information about the Light Rig Dome in V-Ray for Grasshopper.
Overview
This rig consists of a Dome Light source and a background texture. By default the background is not visible.
This rig is ideal for image-based lighting. Loading a spherical texture will automatically give you direct light, global illumination, and reflections based on the image.
By default, there is an HDRI map loaded in the V-Ray Light Rig Dome.
Input Parameters
Light On (Boolean) – Enables the Dome Light. Even when this option is disabled the texture remains visible in the background.
Visible (Boolean) – Enables dome texture camera visibility. When disabled the light still illuminates the scene but is not visible in the background.
File (Path) – File Path to the texture map.
Intensity (Number) – Connect a component to this slot to regulate the intensity of the Dome Light. Calculated in the specified units.
Units (Integer) – Specifies the light unit of measurement. Using correct units is essential when working with physical camera exposure. The light automatically takes the scene units scale into consideration to produce correct result for the scale being worked in.
Default (Scalar) – The color and multiplier directly determine the visible color of the light without any conversion. The light surface appears with the given color in the final image when seen directly by the camera.
Luminous Power (Lumens) – Total emitted visible light power measured in lumens. The intensity of the light does not depend on its size. A typical 100W incandescent light bulb emits about 1500 lumens of light.
Luminance (lm/m^2/sr) – Visible light surface power measured in lumens per square meter per steradian. The intensity of the light depends on its size.
Radiant Power (W) – Total emitted visible light power measured in watts. The intensity of the light does not depend on its size. This is not the same as the electric power consumed by a light bulb. A typical 100W light bulb only emits between 2 and 3 watts as visible light.
Radiance (W/m^2/sr) – Visible light surface power measured in watts per square meter per steradian. The intensity of the light depends on its size.
Rotation (Number) – Horizontally rotates the Dome Light.
Bg Intensity (Number) – Multiplies the background texture intensity. The option only has an effect if Visible is enabled.
Output Parameters
Light (Generic Data) – This Light output should be connected to the V-Ray Renderer's Light input slot.
Env. (Generic Data) – V-Ray Environment to be connected to the V-Ray Renderer's Environment input slot.
Footnotes
- Loading Rig components from projects created with V-Ray 6.10.00 into newer versions, requires parameter rewiring.