- Ray-Based Rendering Learning Resources
Published:
(work in progress…)
Photorealistic Rendering
2023
Path Tracing Algorithm (Sampling)
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(work in progress…)
2025
05: Variance, Noise, and Artifacts in Real-Time Path Tracing
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(work in progress…) Noise is also referred as error, visual artifacts. In ray tracing-based rendering, it is referred to as variance. High variance represents more noise as the number of samples has not converged enough to the actual right result of the integral (Light Transport Equation).
Ray Casting Algorithm
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(work-in-progress)
Path Tracing Algorithm
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Ray Tracing Algorithm
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Ray-Based Approaches
All the ray-based rendering pipeline, including ray casting, ray tracing, global illumination-based advanced algorithms including path tracing, photon mapping could be classified in these two generic categories. This classification is based on the light path direction. Light distribution in a scene is dynamic equilibrium, as much light is absorbed as is emitted.