Light
The Lights object is used to store and set all parameters related with light.Possible keywords are: light_type, energy and direction and lock_to_camera.
You can print the default light by:
>>> ch4.render.lights
One can change parameters for a light by.
>>> ch4.render.lights["Default"].type = "POINT"
>>> ch4.render.lights["Default"].energy = 1000
One can remove or add a light by:
>>> ch4.render.lights.add("front", direction = [1, 0, 0])
>>> ch4.render.lights.remove("front")
Light direction
Light’s direction is based on the viewport of camera. Here is the coordinate system for ligh:
The viewport direction of camera is the z axis;
right side of camera is x axis;
up side of camer is the y axis;
Light type
SUNPOINTSUNSPOTAREA