Particle System Renderers

render_animated_sprites

Renders animated sprites of varying orientations.

animation rate

Rate at which to animate particles (???).

orientation_type

Various orientation types:

• 0 - Billboarded (always face camera)
• 1 - Fix Z and rotate along X and Y
• 2 - Fix X and Y and rotate along Z (always face up)

orientation_control_point

This would let you use a cp to set orientation but it doesnt work at all in the orangebox version

render_rope

Renders all particles in the system into one continuous "rope", the smoothness can be adjusted by changing texel_size and subdivision_count. Killing particles will cause the rope to instantly flick to adjust the rope to remain continuous, so random lifetimes and continuous emitters can look poor, depending on the effect.

render_screen_velocity_rotate

Unknown.

render_sprite_trail

Renders animated sprites with trails based on their velocity.

render_blobs

Template:2009 add Renders particles as blobs of liquid. This is the effect used by Portal 2's paint. The material used should be opaque, and ideally have $phong enabled.

render_models

Template:2009 add Renders 3D models instead of particles.