3.0.5 | Lightact Support

Video player displays last frame after loop

Video reader node (and most likely other video playback nodes) too, displays last frame before refreshing back to the first frame after looping. Steps to reproduce Create a looping Sequence. Place a layer with an active Video reader node in it, but don’t put it at the beginning of the Sequence. … Continued

Go to marker node is broken

Go to marker node doesn’t work. Steps to reproduce Connect a Go to marker node to an active lifeline the software will crash Workaround None known Fixed in 3.1.1.

Blob tracking node is broken

Blob tracking node is broken. Steps to reproduce Connect the node to a cvMat source and its cvMat output to a cvMat to texture node which should be connected to Render to canvas node. the texture won’t be passed to Render to canvas node and Lightact will probably crash. Workaround Not known. … Continued

cvMat resize node is broken

cvMat resize node is broken. Steps to reproduce Connect the node to an active IP camera listener and cvMat to texture node which should be connected to Render to canvas node. the texture won’t be passed from IP camera listener to cvMat to texture node Workaround Use Texture resize node instead. … Continued

Easing functions

Lightact has several easing functions. To very quickly clarify what easing functions do: they map an incoming float range (usually it’s from 0-1) to a different 0-1 range. Easing functions, along with their curves are shown below and the numbers in front of their names are how you call upon them. … Continued

Interpolation nodes

Lightact has several interpolation nodes. They are used to slowly move the value of a variable towards a target. They are usually used when you want to make a value of a variable, be it a Float, Vec2, Vec3 or Color, to slowly follow a target. Some of the nodes … Continued

Fading content in and out

Lightact’s Layer Layout system can be used in a very flexible variety of ways. However, we’ve also integrated functionalities which enable you to create your show in a more traditional way. For example, by fading the content in and out based on layer, sequence or marker times. In this guide, … Continued

LightNet and LightSync

Lightact supports multi-server syncing and playback. It does that with LightNet and LightSync functionality introduced in v3.0.5. LightNet allows different Lightact instances on the same network to communicate with each other whereas LightSync is Lightact’s proprietary timecode protocol, which allows one Lightact instance to act as a master to which … Continued

Sending Variables from UE to Lightact

Lightact can send to and receive variables from Unreal Engine 4 via shared memory. It does that using Lightact-UE4 plugin (if you haven’t downloaded it yet, you can do so here. If you need instructions on installing it, just head over to this article). In this document, we’ll explain how to send … Continued

Sending Variables from Lightact to Unreal Engine