Purpose
To select the type of intensity model for the currently active light source.
Usage
Click the box to change the text from quadratic to constant. Click again and the text in the box will change to linear . Click once more to change the text back to quadratic (3-toggle switch).
Comments
The intensity model defines how the light intensity changes with the distance from the light source.
The quadratic model corresponds to the "real world". The light intensity diminishes quadratically with the distance from the light source.
The linear model states that the intensity diminishes linearly with the distance from the light source.
The constant model states that the light intensity is constant throughout the environment and does not change with distance from the light source.
See also
rel. intensity/abs. intensity
