Silverwing Quick Tip: Understanding Caustics (Or why caustics are so hard to render)

This tut is made with Octane Version 2022.1_R5 and Cinema 4D Version 2023.1 Hello everyone. This week a Day early as I am invited to a birthday Party tomorrow yay. Its a very theoretical video this week as it lets you peek behind the inner workings of a renderer and tries to answer the question of why Caustics are so darn hart to render in most of todays render engines. P.s. leave a comment if you have any good Idea for a future quick tip / tut. 0:00 Intro 1:00 Establishing the Baseline 1:58 What Light is doing in Reality 3:14 The CGI Process 5:46 Caustics in Reality 6:17 Caustics in CGI 8:00 What happens with "Fake Shadows" 9:11 Looking at Photon Caustics 10:24 Examples in 3D 11:27 Explaining "Caustic Blur" 13:40 Photon Tracer "Photon Gathering Radius" 15:45 Outro