Sprite Interpolation
Enabled by default. This provides smoother animation for sprites that have their rendermode set to texture and additive. To enable or disable interpolation, use the r_sprite_lerping console variable.
Note: For correct interpolation, make sure the server framerate is exactly 10 FPS (regardless of the sprite’s own FPS in pev | framerate). This parameter is dictated by the frame changer function’s think time, which is 0.1s and remains unchanged in most mods.