Having trouble with the three.js OBJ MTL Loader in low light situations

In the scenario of "webgl_loader_obj_mtl", it can be observed that the ambient light is not utilized. Even when it is commented out, there is no noticeable impact as the directional light takes precedence. Disabling the directional light results in nothing being displayed, as the ambient light does not provide any color casting.

Is there a solution to this issue?

Relying solely on directional light gives rise to glare and reflections, giving the object a plastic appearance and only illuminating specific areas.

Answer №1

The reason for this is that the Ka parameter in the .mtl file is set to 0.00, causing the absence of ambient material. To experience ambient light effects, adjust the Ka value to 0.2.

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