Help Raycast. Interaction with liquid

[Igor_Kozulin]

Help me, please.
Is there a way to register the interaction of rays with a liquid?
The task is as follows:
if a ray hits a liquid, then it turns red, otherwise, it remains blue.

[josemendez]

Help me, please.
Is there a way to register the interaction of rays with a liquid?
The task is as follows:
if a ray hits a liquid, then it turns red, otherwise, it remains blue.

Yes, there's an entire section of the manual dedicated to spatial queries such as raycasts. See:

http://obi.virtualmethodstudio.com/manua...eries.html