# Physical Environment

**URL:** https://fspm.discourse.group/c/modelling/modelling-the-physical-environment/12.md

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## [About the Physical Environment category](https://fspm.discourse.group/t/about-the-physical-environment-category/18)

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**Author:** [@michele.butturini](https://fspm.discourse.group/u/michele.butturini)\
**Replies:** 0

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\[To be completed…\] Do you want to help write the description for this category? You are very welcome to do so! Then please contact the admins.

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## [Interactions with the environment](https://fspm.discourse.group/t/interactions-with-the-environment/316)

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**Author:** [@camilochiang](https://fspm.discourse.group/u/camilochiang)\
**Replies:** 4\
**Last updated:** [December 13, 2024, 7:01pm UTC](https://fspm.discourse.group/t/interactions-with-the-environment/316 "2024-12-13T19:01:24Z")

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Hei, Sorry if this is the wrong place, but I would like to ask a question regarding interactions with the environment I know that ray tracing for light interactions is implemented in for example, Virtual plant lab, but …

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## [Shader with perfect lambertian angle-dependent specularity, can it be made in GroIMP?](https://fspm.discourse.group/t/shader-with-perfect-lambertian-angle-dependent-specularity-can-it-be-made-in-groimp/317)

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**Author:** [@Euwnt9](https://fspm.discourse.group/u/Euwnt9)\
**Replies:** 1\
**Last updated:** [October 31, 2024, 5:49am UTC](https://fspm.discourse.group/t/shader-with-perfect-lambertian-angle-dependent-specularity-can-it-be-made-in-groimp/317 "2024-10-31T05:49:35Z")

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Dear all, I am looking into light transmission through objects. By default, the setDiffuseTransparency of a shader will assume a lambertian scattering (i.e. ignoring angle of incidence of light). Though GroIMP does not …