Tutorials on Rays and Billiards

3D Investigate Rays and 3D Billiard are tools that not only allow you to visualise how sound propagates in your room model, but also allow you to identify model issues such as holes in the geometry and whether your source position is appropriate, as well as acoustic effects such as flutter echoes and focusing.

0:00 Intro
1:20 3D Investigate Rays
2:58 Scattering options for rays
4:01 Stop criteria for rays
4:54 Lost rays in job calculations
5:26 Radiation pattern of rays
6:10 Sticky lost rays and redraw model
6:46 Ray buffer
7:42 3D Billiard
9:17 Radiation planes
10:25 Scattering options for billiards
10:48 Reflectors and toggle surfaces
11:31 Ball number, size, and speed
12:24 Stop criteria for billiards
12:59 Show absorption
14:05 Outro