kazen_proto

LOG:

• Add Dual support to have dPdx, dPdu, dudx etc...
• Have texture rendered after shaderglobal is complete(Update : texture support is there after setup u&v in the shaderglobal, no need for dPdx and etc.. Texture support is done now)
• easier class introspection with boost hana and frozen. Refer to https://github.com/nicktrandafil/yenxo to get runtime support (Update : tested boost hana but no good result, cannot save much typing with a lot extra coding difficulties and other flaws, check branch with_hana)
• configurable light path record for debugging and visualization (Update : not configurable now with hard coded structure, can provide convinience for some basic debug. Add other plans on this topic later on)
• Complete closures and fill up with details of the various microfacet models
• look into path integrator to quantify the errors between ground truth

Kazen Con 2022.3.1 Briefing

1. Current development status of kazen proto and related background knowledge(OIIO, OSL).
2. Design and ideas of some module of the renderer:
   1. Scene description and parsing;
   2. Kernel seperation of OSL for future integration of GPU;
   3. Debugging tools;
   4. Testing, benchmarking and documenting.
3. Problems occurred in development of kazen proto and related topics that need further investigation:
   1. floating point and self intersection;
   2. cpp self introspection;
   3. partial derivatives and dual number.
4. Discussion and quick revisit of light path transport, importance sampling, MIS etc..

Kazen Con 2022.7.18 Briefing

1. Features developed this season:
   1. OSL compile at runtime, add support for self defined closure.
   2. A walk through of enoki alike integrator practices.
   3. Configurable math library integration, enoki and eigen support added.
   4. Refractoring microfacet part and adding closure impls.
2. Plans:
   1. Implement all the closure defined in the specification.
   2. Write a principled shader in OSL and add a demonstrating scene.
   3. Better benchmark to get a overall perspective of the performance.
   4. Add a formal PT integrator with volume and participating medium calculation.