Is it possible to detect mouse pointing at a prim?

[GloriaGlitter]

Is it possible to detect when a user's mouse points at a prim?  I want to be able to change the texture of a prim when a mouse points at it.  I couldn't find a detection event for this but It should be possible since the cursor changes shape when pointing at an object with a sit pose in it for instance.  Thanks.

[Mollymews]

am pretty sure there is no mouse_over equivalent in LSL. We only have mouse_down, mouse_press and mouse_up in llTakeControls  CONTROL_LBUTTON

http://wiki.secondlife.com/wiki/LlTakeControls

[Wulfie Reanimator]

I can confirm there's no way to detect if someone's mouse is hovering over something, but there is a way to detect if someone is aiming at something in mouselook, or looking at it in free view.

It requires regularly doing a raycast check according to their camera's position and rotation.

http://wiki.secondlife.com/wiki/LlCastRay
http://wiki.secondlife.com/wiki/LlGetCameraPos
http://wiki.secondlife.com/wiki/LlGetCameraRot

This requires that the thing that's doing the checking has permissions from the avatar in question.

Altarnatively, you can detect other avatars' mouselook remotely (no attachment/permissions required) if you just get their current rotation.

Edited April 2, 2020 by Wulfie Reanimator

[Rolig Loon]

Molly's right.. There is no mouse_over function in LSL. However, if you own the object that you want to texture, you can certainly fake it.  Use llCastRay to detect the UUID of whatever the user has clicked on while in mouselook, and then send a message to the object that contains the color vector or the texture UUID that you want to apply. A script in the receiving object can do the work of actually changing the color or texture.  Of course, the simpler solution (without llCastRay) would simply mean clicking on the object and having its script send you its UUID.

[GloriaGlitter]

This is my project - I'm making a TP board for a store elevator - if you click on say 'Floor 3' button then you go to floor 3.  Just thought it would be neat to glow the button as the mouse hovered over it so the user could be sure of clicking the right button.

[Rolig Loon]

Aha.  That would be neat. Sadly, there's no way to do it that doesn't involve some rather complicated shenanigans that would not be practical for the average visitor.

[GloriaGlitter]

Pity such a function not available but thanks for considering the question

[Mollymews]

3 hours ago, GloriaGlitter said:

Just thought it would be neat to glow the button as the mouse hovered over it so the user could be sure of clicking the right button.

i think it would be great to have this as well