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Advanced Computer Graphics: Difference between revisions
→Path Tracing
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<math>p_{\omega}(x) = \frac{1}{\# lights} * \frac{1}{area of light} * conversion</math> | <math>p_{\omega}(x) = \frac{1}{\# lights} * \frac{1}{area of light} * conversion</math> | ||
===Refractive objects=== | |||
;For mirrors: | |||
In practice, refractive objects are handled as a distinct case.<br> | |||
You do not need to sample a direction. | |||
;For glass: | |||
* Randomly sample either reflected or refracted ray with given probability. | |||
* Typically produces a lot of noice | |||
===Emitting surfaces=== | |||
* If a ray accidentally hits emitting surface, don't add emission | |||
** Exception: If eye ray hits emitting surface | |||
** Exception: If ray is generated from a refractive surface | |||
==Advanced Sampling Techniques== | |||
==Ignore== | ==Ignore== | ||
[[Visible to::users]] | [[Visible to::users]] | ||