> If with the term "indirect" you include specular But you don't. "lighting in which the light emitted by a source is diffusely reflected" (merriam-webster.com

> If with the term "indirect" you include specular But you don't. "lighting in which the light emitted by a source is diffusely reflected" (merriam-webster.com) In normal computer graphics speak, indirect lighting means light that has had at least one diffuse reflection on its path.