Light beam bounce on mirror – Caustics reflective - Lighting and Rendering - Blender Artists Community
Hi everyone. This is my first post on this forum. Premise: I’m trying to bounce a “spotlight” light beam with a sharp/defined (not soft) light edge on a mirror with as little “roughness” as possible to respect the sharpness of the light beam. – Blender v.3.3 – I’m using “Cycle” as render engine. – The “caustic reflective” option is active and on “Light paths” (in the “Render properties” drop-down list) I increased the “glossy” and “total” max bounces. Result = it doesn’t work, or better
![](https://static.chaos.com/images/assets/000/009/030/mobile_square/Corona_Caustics_header.jpg?1573167989)
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![](https://docs.unrealengine.com/4.27/Images/RenderingAndGraphics/RayTracing/PathTracer/SkyboxMesh_disableCastShadows.jpg)
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![](https://i.stack.imgur.com/XOB0Q.png)
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![](https://blenderartists.org/uploads/default/original/4X/7/7/c/77c7d8549ee82cccf5ff7601ab31da15448fadb7.png)
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![](https://i.ytimg.com/vi/tLVJ-S_eFL4/maxresdefault.jpg)
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![](https://static.chaos.com/images/assets/000/009/032/full_width_original/corona_caustics_pr.2_02.png?1573167986)
What Are Caustics and How to Render Them the Right Way
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