Ray Tracing

[Vandorlot]

I know how ray tracing works in the way it is used in RTX and in games. However, in production quality renders is ray tracing used in a way that every light source emits rays instead of the camera emitting rays?

[Vandorlot]

Figured out what it was called. Its called forward ray tracing. Can anyone help me understand it its more confusing than backwards ray tracing.

[Jurrunio]

If you do forward raytracing, you will need a render farm to get usable frame rate (and that's like a frame per 30 hours as such). That's how 3D animations are produced.

[Vandorlot]

28 minutes ago, Jurrunio said:

If you do forward raytracing, you will need a render farm to get usable frame rate (and that's like a frame per 30 hours as such). That's how 3D animations are produced.

I meant more on how forward ray tracing works.