All the light reflections are supposed to be as uniform diffuse reflection (incident light reflected in every direction with an equal intensity) in Radiosity calculation. Therefore, bump mapping is not considered in Radiosity calculation. However, it is sufficient for a usual practical use to consider it in Ray Tracing after Radiosity calculation. With ArchiLumos1.5, the consideration for texture mapping in the calculation can be chosen. In this case, the mean color of the texture is used as diffuse reflectance.

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1. What is Radiosity ?
2. The Radiosity calculation result doesn't become brighter even though light sources are increased in the scene.
3. What is an important reminder to generate model data for Radiosity calculation ?
4. Why is it a problem, whether front or back of the surface, in Radiosity calculations ?
5. Why some surfaces were displayed as black after Radiosity calculation ?
6. When is the completion point of Radiosity calculation ?
7. How to deal with the texture-mapping or the bump-mapping in Radiosity calculations.
8. What is the relation between Radiosity and Ray Tracing when using them together ?