Work Journal 9/29

I embedded the light under 1 unit along the normal direction under the surface. The outcome should be several disk light sources embedded under the mesh.

[To Do]

1. Control the scattering and absorption and the intensity of the light.

2. Fix the brain mesh.

3. Test several light sources

Work Journal 9/27

I have tried several ways to make to media glows from the inside but not too transparent. However, if I set the scattering and absorption rate too high, the light can't come out.

[Bunny Model]

[Brain Model with External Lighting]

[Brain Model with Internal Lighting]

[To do Next]
*a bug when I place the square light inside. (Didn't occur when using the bunny model.)

* Find out a proper parameter to see as a light in fog.

Work Journal 9/26

[Might be problematic]
BVH (if too many triangles or the objects are scattered everywhere, it might be a problem)
Photon mapping (due to the limit of the memory, if too many photons are used, it will crash)

[Finish Today]
The "Media" object now is fully controllable.
High scattering, high absorption will result in close to diffuse objects.
Low scattering, low absorption will give more translucency.

[Next goal]
Multiple light sources inside the object.
I'm not sure how it will look like. I will set the scattering and absorption low to make the light from inside can go out.
No clue if it will look like the wax object in the reference picture.

One more thing, set the reflection to white might be working without global tone mapping.