3d Lighting Explanation

3ds Max Lighting Basics

Recommended reading: 3d Lighting Learning Basics

Light Base

In this section we discuss all types of light and how to control them better.

Route of the Light

The first thing to do is to understand how light is reflected in order to simulate them correctly.

Description: The light source emits a beam of light, the intensity is 100%, and the falloff value determines the speed at which the light intensity weakens. When you encounter obstacles, you will reflect, the intensity of reflection depends on the different materials of the object. The polished metal reflects about 50%-70% of the strength. Black rubber can only reflect 10%-30%. The angle of light (orange arrow) depends on the roughness of the material. The higher the roughness, the more the reflected light tends to disperse rather than just in one direction.

What happens if the material is transparent? Light is dispersed inside the object, and of course the intensity and angle depend on different materials.

The biggest problem is near the corners where the light reflects a very short angle and distance.

This picture is used for a spotlight, with a hard raytraced Shodow, and a surrounding light-emittering.