L4D: Prop Overview

Following video covers 'Prop Overview'. It is a more in-depth tutorial on how to use different variety of props in Left 4 Dead Hammer.

Covered Props include:

prop_static
prop_physics
prop_dynamic
prop_ragdoll

Tutorial also includes how to create a rotating fan.

Props Overview:

Prop_Static: physical model that acts as a solid object. It cannot move, animate, or accept input. Prop_Static doesn't actually exist as an entity after the map has been compiled. The vast majority of models in Valve's maps are set to prop_static.

Prop_Physics: used to add rigid, v-physics simulated models. Cannot be parented.

For multiplayer maps use prop_physics_multiplayer or prop_physics_respawnable.

Prop_Dynamic: used to add a moving or animated model to a map. Prop_Dynamics are able to be parented to the other entities, thus making them moveable and animatable.

Prop_Ragdoll: simulates physical joints inside a model. The model must have joints already in-place for prop_ragdoll to work.

Creating a Rotating Fan:

Use a prop_dynamic for the fan blades.

Insert an entity prop_dynamic and choose fan blades.

Create a brush with invisible texture applied. Place it under the fan.

Tie the brush to an entity func_rotating by selecting the brush and press Ctrl+T

Select func_rotating

Name func_rotating with fanblade. Name could be anything you want.

Select the fan blades.

Go to object properties and under parent, input the name of the func_rotating entity.

Func_Rotating flags tab, set to Start On.

Set the speed and any other properites under func_rotating that you want.

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