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Advanced Computer Graphics: Difference between revisions
→Bidirectional Path Tracing
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===Bidirectional Path Tracing=== | ===Bidirectional Path Tracing=== | ||
Trace path from eye and light<br> | Trace path from eye and light<br> | ||
Example: | |||
from light we get <math>y_0, y_1</math><br> | * from eye we get path <math>z_0, z_1, z_2</math><br> | ||
Then make shadow rays from every pair of z, y<br> | * from light we get <math>y_0, y_1</math><br> | ||
* Then make shadow rays from every pair of z, y<br> | |||
Path of length k with k+1 vertices | |||
* s vertices from light, t from eye | |||
* Path denoted <math>\bar{X}^{s,t}</math> (e.g. <math>\bar{X}^{2,3}</math>) | |||
* We also get probability density for this path <math>p_{s,t}</math> | |||
==Ignore== | ==Ignore== | ||
[[Visible to::users]] | [[Visible to::users]] | ||