Material modify control

It modifies a VMT parameter in real time.

Example
is used by the clocks seen in the first Portal map. The centisecond number is a using a VMT that looks like this: "LightMappedGeneric" {	"$baseTexture" "signage/clock/countdown" "Proxies" {		"MaterialModify" {			"dummy" 0 //This has to be here, or material loading barfs. }	} } The  has Material variable to modify set to. A with a Refire Interval of 1 sends the   StartFloatLerp with the parameter 0 59 1 0. This makes the texture go from frame 0 to frame 59 within one second, every second.