Sebastian Herholz cb334428b0 Cycles: fix bugs in point and spot light multiple importance sampling
* Spot lights are now handled as disks aligned with the direction of the
  spotlight instead of view aligned disks.

* Point light is now handled separately from the spot light, to fix a case
  where multiple lights are intersected in a row. Before the origin of the
  ray was the previously intersected light and not the origin of the initial
  ray traced from the last surface/volume interaction.

This makes both strategies in multiple importance sampling converge to the same
result. It changes the render results in some scenes, for example the junkshop
scene where there are large point lights overlapping scene geometry and each
other.

Differential Revision: https://developer.blender.org/D13233
2021-12-01 20:20:12 +01:00
2021-10-23 10:49:51 +05:30
2021-11-24 15:54:53 +01:00
2021-12-01 11:11:50 -05:00
2021-11-30 17:43:24 +11:00
2021-03-26 16:15:02 +01:00

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Blender
=======

Blender is the free and open source 3D creation suite.
It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing,
motion tracking and video editing.

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