The Disney BSDF [1, 2] is extremely flexible and offers a lot of artistic freedom. The only real limitation is that the BSDF is required to be energy conserving, but that&#x27;s hardly a limitation. A physically-based renderer is still able to produce non-photorealistic results.<p>[1] <a href="http:&#x2F;&#x2F;blog.selfshadow.com&#x2F;publications&#x2F;s2012-shading-course&#x2F;burley&#x2F;s2012_pbs_disney_brdf_notes_v3.pdf" rel="nofollow">http:&#x2F;&#x2F;blog.selfshadow.com&#x2F;publications&#x2F;s2012-shading-course...</a><p>[2] <a href="http:&#x2F;&#x2F;blog.selfshadow.com&#x2F;publications&#x2F;s2015-shading-course&#x2F;burley&#x2F;s2015_pbs_disney_bsdf_notes.pdf" rel="nofollow">http:&#x2F;&#x2F;blog.selfshadow.com&#x2F;publications&#x2F;s2015-shading-course...</a>