alpha channel issue with jit.lcd
Hi all--
I'm running into an issue when trying to draw with transparency in jit.lcd. I'm trying to draw into the LCD object such that the marks appear on a transparent background and can be seamlessly alphablended with another layer.
The LCD object works right out the gate, the problem comes when I want to clear the drawing. The 'clear' or 'reset' messages both clear the RGB channels, but they set the alpha channel to full on-- Where there was once no alpha, after I clear or reset the LCD object, there is now full alpha. Any advice on how I might clear the drawing and also clear the alpha channel?
Working in Max 8.0.0
Here is a stripped-down demonstration of the problem:
I am having this same issue in Max 7.
It happens with Rob Ramirez's answer to this post.
https://cycling74.com/forums/jit-lcd-drawing-layer-on-top-of-video
It all works well if you re-create the jit.lcd object by deleting it and creating it again.
But clear and reset just set the alpha channel to full.
If anyones looking for a semi solution he's a work around simplified from tutorial 29.