Balanced Lighting Tutorial

Balanced Lighting Tutorial

Using Lighting Channels you can easily balance the lighting of various sources to achieve the effect desired.

This model was provided by Boothy to demonstrate how lighting channels can be user.

Quick Notes:

  1. You can set the names of the channels in either IRender nXt, (from the Lights tab), or in the Batch renderer (using the lightbulb icon)
  2. However you must inform IRender nXt of which channels to use for which light sources, and how many channels to use before starting the rendering.

Setting channels on lights

Deep dive tutorial Light Balancer - Tutorial


Extreme Samples
Many of these samples have only one channel enabled so you can see just which lights are effected by which channel.

Original Rendering

All channels set to the default intensity of 1.0

Balanced Lighting

Other Lights - (lights outside door) and Self glow - (glowing panels on the wall) - made very intense (40.0) for effect and other lighting channels adjusted to achieve desired effect.

Nighttime - Sun and Sky turned off

For an evening scene, we would probably leave the sun off, but add just a little sky.

Sun only

No sky. Only the sun, and it reflection from objects in the model, illuminates the scene.

Daytime - Sun and Sky only

No interior lights. Sky adjusted down, because at 1.0 it was too bright.

Other Lights only

Lights outside of window were in channel Other Lights.

Selfglow only

Illuminated panels on walls.

Recessed ceiling only

The lights are not visible in this view, but do add the the overall lightin..

Uplighters only

Lights above panels on walls.

Pendant Down only

Down light from hanging pendants..

Pendant Up only

Up light from hanging pendants..

Balanced - full image after 1,300 passes.
(probably more than were needed, but I let it run all night.)


See also