[SOLVED] Max / min Billboard sizes

[Paul.Brodin]

Is there any way of controlling how small / large a billboard ( or any other object really) grows/shrinks to.

 

Ideally i want a billboard placed in the world that doesnt change size, no matter how far from the object you are.

 

 

[unclebob]

Hi Paul,

 

It's possible to set billboard width and height by calling ObjectBillboard::setSize (https://developer.unigine.com/en/docs/1.0/scripting/library/objects/class.objectbillboard#setSize_float_float_void). All you need to do is to determine how far this billboard is away from the camera, calculate that distance and use it to compensate perspective projection scale.

[Paul.Brodin]

Would this need to be in the update loop?

i can look at that but it seemed an inefficient way of doing it

[unclebob]

Paul,

 

Yes, this needs to be in update loop. Another way is to implement upscale/downscale process in vertex shader but that might be tricky and will force you to have custom material which is probably not what you want.