Two issues with sprites

[IceBurger]

Hello, I'm thinking about playing around with making game menus in Ultra, so I started with a sprite. I noticed two issues right away:

1. [MINOR] You must click precisely the center of a sprite to select it in the editor. Clicks anywhere else on the sprite do not do anything.

2. [LESS MINOR] The position of the sprite in the editor does not match what is rendered in game. Here is a screenshot of the editor:

and here is a screenshot of the game (after pressing run):

 

Also, are sprites an appropriate way to implement a game menu?

[Thirsty Panther]

Ultra Engine does come with GUI.

https://www.ultraengine.com/learn/GUI?lang=cpp

[Josh]

Something important to understand with sprites is they don't have any rotation on the CPU side...the sprite facing code only executes in the vertex shader. The reason for this is that their rotation is always relative to a camera, and there may be multiple cameras rendering the same sprite, and rotating it differently for each camera isn't possible.

So the concept of a world Pick operation intersecting the rotated mesh doesn't make sense, because that rotation has to be defined relative to something. This is why sprites use a sphere collider for picking.

I could adjust the radius of the sphere collider, but it is still a round shape around the center of the sprite that can be picked.

[Josh]

The sprite handle/offset issue can be demonstrated in the editor just by loading a map that has a sprite in it.

I have uploaded a fix for the editor on the .dev channel. A build of the static libs and Lua binaries will be available later today.