Setting the alpha value of a gui element (SOLVED)

Questions
#1

How do you set the alpha value of a gui node. I have tried using msg.post("nodeName", "color.w", "0") But to no avail. Any idea why?

#2

I believe you have to interact with gui nodes via the gui api (from a .gui_script file):

local node = gui.get_node( "nodeName" )
gui.set_color( node, vmath.vector4(0, 0, 0, 0) )

Works for me.

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#3

Thanks, I never realised you had to store the node into a variable.

1 Like
#4

You don’t have to:

gui.set_color(gui.get_node("nodeName"), vmath.vector4(0, 0, 0, 0))

But if you use the node in several places it’s better.

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#5

thanks, I am only starting to mess around with GUIs now

1 Like
#6

Hey @Justin_H,

I am trying the same but it doesnt work for me.
I use a gui script to change the colours of some squares if you click on them but it only turns the squares white.

gui.set_color(current_node, vmath.vector4(204, 128, 51, 1))

Do you know what is wrong?

#7

The color values should be in the range of 0.0 to 1.0. What you need to do is to divide your RGB values with 255.

2 Likes
#8

Hey @britzl ,

Thanks a lot!

1 Like