rendering solar tower plant

Hello Greg,

thanks for you help. I made some progress on this and have new questions :slight_smile:

The image linked below shows three scenarios I tried.

The left image shows heliostats reflecting the sun [source, at 0, 0, 1, ring with 0.5�] onto the receiver. This works fine so far.

But I also tried other materials that I would have expected to work.

The middle image uses a white glossy plastic with specularity 1.0 and roughness 0.0 . I would have expected to see the reflection on the receiver, too.

Same for the right picture, here I used a non-transmitting dielectric.
I would have expected that the complete radiation is reflected.

Do you have an idea what might causethis behaviour or what I might have missed?

Kind regards,


Je suis actuellement en vacances. Je serai de retour le 7 août 2017.

En cas d'urgence, vous pouvez toujours appeler le numéro général d'Estia : +41 (0) 21/510.59.59 ou envoyer un mail à l'adresse [email protected]

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Julien Boutillier
Estia SA