How to make GUITexture to flash white

An article by mgear    No Comments

(Been busy doing a small 3D simulator for iPad3..)

Customer wanted a thunder sound on the main menu (when entering it),
I also added a brigth flash effect for the gui textures (logo, buttons, background).
Flash also needs to happen at a given time (to match the sound).

Version#1

// variables
– take reference to each GUITexture objects, get their textures
– variable for flash texture (could be just white blurred box..)

Awake()
– Disable gui textures (you could disable them in inspector, but then you cannot see them in editor..)

Start()
– invoke(“FlashGUI(),1.5);

FlashGUI()
– Change GUITexture color to Color.white, that makes it brighter
– If changing color doesnt do it, change gui texture to white texture
– invoke(“ShowGUI(),0.2); // we show the white textures for 0.2sec, then go to switch real gui textures

ShowGUI()
– Change GUITexture color to Color(0.5,0.5,0.5,1), that makes it normal color
– If you didnt change color, change gui texture to correct gui texture

//notes
– It might look better with a fast color fade, from bright to normal(?)
– You could also do this in the Update() loop: check in which part of the sound is playing (audiosource.time)