I ran into an issue when integrating a dynamic, talking character in an environment of baked lighting.
When the character is standing in front of a window inside a room where the room lighting is all static and baked, the baked volumetric light samples (VLM) would affect the dynamic character accordingly and I observe proper light fall-off on his face. The issue is when the character opens mouth to talk, the gum, teeth, and tongue are affected/lit by the volumetric light samples as if there is no shadowing or occlusion from the surrounding geometry. It results in over-exposed gum, teeth, and tongue where their materials are properly look-deved and balanced for dynamic lighting rigs.
How would you typically solve this issue or do I miss something?
A) bake occlusion into mouth, gum, and tongue textures?
B) screen space occlusion?
I am hoping to not go either of the above route and solve it in lighting.