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Phoenix has different tools that help you to control how the emissive fire illuminates the smoke and the scene - see the Fire Lights sub-rollout for more details. |
Fire and smoke also have their own Color and Alpha. Alpha is a synonym for opacity, and transparency is the opposite of opacity. The Smoke Color, Smoke Opacity, as well as the Fire's Color and Opacity, can be mapped to a physical Grid Channel Channel from the simulation, using the Based on parameter.
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When there is both Smoke and Fire (diffuse and emissive) in the same voxel, you can use the Fire Opacity Mode in the Fire sub-rollout to determine the resulting color and alpha. The Fire can simply use the opacity that is set for the smoke in the the Smoke Opacity sub-rollout, or you can separate their opacities for additional control, using either the Fully Visible or Use Own Opacity modes. |
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