This page gives information about the Lighting Analysis Render Elements component in V-Ray for Grasshopper.


Overview

The V-Ray Element Lighting Analysis component provides a visual representation of the lighting intensity in the rendered frame. It maps Illuminance and Luminance information as color gradient or a grid of measured values onto the frame.

You can use only one Lighting Analysis element at a time.

Lighting Analysis render element is explained in detail on the linked page.


 



Input Parameters

Units (Integer) – Chooses which lighting information to be analyzed.

Luminance (cd) – Uses the Luminance of the rendered frame in candelas. 
Illuminance (lx) – Uses the Illuminance of the rendered frame in lux.

Range (Domain) – Determines the value range on which the temperature gradient will be mapped to.

Scale (Integer) – Specifies how values are mapped to colors onto the frame.

Linear – The colors are mapped in a linear scale. 
Logarithmic – The colors are mapped in a logarithmic scale.

Display (Integer) – Specifies the analyzed data display mode.

False Colors – Fills the frame with a gradient ranging from blue (low values) to red (high values). For the out of range values, it uses respectively black and white. 
Grid Overlay – Displays the values at distinct grid points over the frame. They use the same grading colors.

Grid (Integer) – Specifies the horizontal and vertical space in pixels between two numeric points on the grid.

Fade (Boolean) – When enabled, it fades the rendered image, so that the grid values would be more visible.

Legend (Boolean) – When enabled, shows a legend of the false colors at the bottom of the render.


Output Parameters

Element (Generic Data) – V-Ray Lighting Analysis render element.


Example

Example scenario of how to use the Lighting Analysis element.


Result in the VFB.