Determine in which order objects are renderered.
This way for example transparent objects are rendered after opaque objects, and so on.
See subshader tags for details.
| Background | This render queue is rendered before any others. |
| Geometry | Opaque geometry uses this queue. |
| AlphaTest | Alpha tested geometry uses this queue. |
| Transparent | This render queue is rendered after Geometry and AlphaTest, in back-to-front order. |
| Overlay | This render queue is meant for overlay effects. |