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Anyone has idea how to solve the Light refraction on background surface environment created when a directed light source passes through glass polygons., like the video similar refr like this.
https://docs.arnoldrenderer.com/display/A5AFCUG/Refractive+Caustics+using+an+Emissive+Shader
https://docs.arnoldrenderer.com/display/A5AFCUG/Fake+Caustic+Effect
You could also project a pattern using a gobo light filter.