Raycasting Question

Getting Started Newbie Questions
#1

Is it possible to implement lasers in a game to shoot objects using raycasting and reflection (to reflect the lasers)? Thank you. 

#2

Essentially, yes - but remember that “raycasting” is a technical term for a mathematical process used within the physics engine and not a visual representation of anything.

#3

Could you please clarify what you mean by ‘not a visual representation of anything’? Also could you point me out on an approach to create laser like effects (if not by using ray casting)?

#4

Hello @firdausm,

Please check out the tutorial/demo linked below. It shows you basically everything you describe: raycasting, reflection, and how to “visualize” those lasers based on the internal physics-based raycasting. What @horacebury means with “not a visual representation of anything” is that raycasting merely checks for collisions along a path (ray) in the physics engine, but it does not automatically display any visual object based on the ray… that must be done separately.

http://www.coronalabs.com/blog/2013/05/07/physics-raycasting-and-reflection/

Best regards,

Brent

#5

Hi Brent, thanks for the clarification. I’ll post again if I have any questions in regards to this.

#6

Essentially, yes - but remember that “raycasting” is a technical term for a mathematical process used within the physics engine and not a visual representation of anything.

#7

Could you please clarify what you mean by ‘not a visual representation of anything’? Also could you point me out on an approach to create laser like effects (if not by using ray casting)?

#8

Hello @firdausm,

Please check out the tutorial/demo linked below. It shows you basically everything you describe: raycasting, reflection, and how to “visualize” those lasers based on the internal physics-based raycasting. What @horacebury means with “not a visual representation of anything” is that raycasting merely checks for collisions along a path (ray) in the physics engine, but it does not automatically display any visual object based on the ray… that must be done separately.

http://www.coronalabs.com/blog/2013/05/07/physics-raycasting-and-reflection/

Best regards,

Brent

#9

Hi Brent, thanks for the clarification. I’ll post again if I have any questions in regards to this.