light

type DirectLight struct {
	Light worldlight.WorldLight

	PVS     []byte // accumulated domain of the light
	FaceNum int    // domain of attached lights
	TexData int    // texture source of traced lights

	SNormal mgl32.Vec3
	TNormal mgl32.Vec3
	SScale  float32
	TScale  float32
	SOffset float32
	TOffset float32

	DoRecalc      int // position, vector, spot angle, etc.
	IncrementalID uint16

	// hard-falloff lights (lights that fade to an actual zero). between m_flStartFadeDistance and
	// m_flEndFadeDistance, a smoothstep to zero will be done, so that the light goes to zero at
	// the end.
	StartFadeDistance float32
	EndFadeDistance   float32
	CapDistance       float32 // max distance to feed in
}