Model Lab has a Light tab where you can add and modify physical lights on a model:
Within the Light tab, there are mainly 3 sections where you can further customize the light, but before that let's add lights to a selected mesh:
If you want to remove the light, just select the mesh where light is added, and click the Remove light button.
These are three ways in which you can specify the color of the light:
This will create the light color by using the material of the selected mesh.
Select the Color Temperature of the light source ranging from 1500K to 7500K.
RGB styled light customization also with HSV(Hue, Saturation, Value) sliders.
This is where you can select a range of brightness of the light in lumens. It's separated into 4 brightness ranges:
0lm - 250lm
250lm - 1500lm
1500lm - 6000lm
6000lm - 100 000lm
The size of the mesh emitting light affects how intense the material is perceived, so larger light meshes will be perceived as darker compared to small light meshes.
Model Lab lights support IES (Illuminating Engineering Society) profiles in further controlling how the light is being spread.
You can assign IES profiles by:
- Clicking into the IES preview for a few selections of profiles:
- Create and load IES profiles using other software:
You may also specify the direction of where the light spreads to.
This defaults in (0, 0, -1) in a normalized vector format, which means these values essentially range from -1 to 1 in defining a direction in its axis.
- X:1000, Y:1000, Z:1000 will be equivalent to X:1, Y:1, Z:1.
- X:2, Y:1, Z:0 will be equivalent to X:1, Y:0.5, Z:0
For example, a projector's light direction for this model would be: