strange caustics

Moltar

Hello, was trying out some caustics last night as part of my course work and got a little confused when I got strange reflections on the models and coloured lines. I thought it my be the refractions set to low but let me know what you guys think.

The material is mental ray water with a custom colour. One is lake the other is ocean.

throttlekitty

Looks more or less correct to me? Remember that with caustics, it's a simulation of light entering these surfaces getting bent hither and thither and eventually leaving in an appropriate way. Part of what happens is that the light gets concentrated (from our viewpoint) in convex surfaces like you've shown, so you'll get those wormlike stripes of light.

Moltar

Ahh, ok. Just wasn't sure if I had the render setup correctly. That was my first go at caustics so I wasn't exactly sure what to expect apart from a very long render.