Prop2Mesh
Finally got around to making this workshop-worthy
The purpose of this addon is to reduce server entity counts and client draw calls by converting selections of props into one rendered model. It does not generate a collision mesh or hitbox.
These entities can have multiple mesh "controllers", each of which control properties such as material and color.
Basic usage is as follows:
step 1: left click with the tool to spawn an entity
step 2: right click that entity to select it
step 3: select props by right clicking them (or shift right click to area filter select)
step 4: hover on spawned entity with the first option selected to add a controller *
step 5: right click with the desired controller highlighted
* alternatively, you can hold shift and left click to automatically add controllers for each color/material pair
You can then use the color, material (and colormater) and remover tools on the entity in the same way.
Selectable entities currently include props (with visclip and resizer support), holograms (wiremod and starfall), and legacy p2m controllers from before this major update.
The addon also has an e2 library, example and wiki here:
https://github.com/shadowscion/Prop2Mesh/blob/master/e2m_example_basic.txt
https://github.com/shadowscion/Prop2Mesh/wiki/Expression2