Commit Graph

22 Commits

Author SHA1 Message Date
Brecht Van Lommel
543e06ce0e Fix #33915: tweak self intersection epsilon for motion blur a bit further, still
had some cases where there were artifacts. Also fix rendering error with shutter
time set to 0.
2013-01-23 16:56:02 +00:00
Brecht Van Lommel
0d6976ad0c Fix #32900: object motion blur not working on the GPU. To make this work I disabled motion
blurring of scale animation, probably not a big loss in practice since it's not so common
to animate this, can be added back later.
2012-11-29 00:43:50 +00:00
Brecht Van Lommel
fdadfde5c5 Fix #33158: motion vector pass wrong in cycles in some scenes, wrong vectors
due to float precision problem in matrix inverse.
2012-11-21 01:00:03 +00:00
Brecht Van Lommel
1ca4670267 Cycles: panorama camera in viewport camera view now shows the render mapped
to the camera border rather than the entire viewport.
2012-11-10 22:31:29 +00:00
Brecht Van Lommel
95963289c8 More fixes related to #32900, motion blur with cuda sm 2.0 still disabled. 2012-10-18 12:45:27 +00:00
Brecht Van Lommel
d08b06f773 Cycles: motion blur is now curved and passes exactly through the midpoint.
Previously it would only interpolate between the previous and next frame,
which meant it might not hit the current frame position.
2012-10-17 12:55:23 +00:00
Brecht Van Lommel
fe16b26206 Cycles: fix some update issues with camera motion blur, and do some more work
for getting object motion blur ready.
2012-10-15 21:12:58 +00:00
Brecht Van Lommel
94f869a256 Cycles: camera motion blur enabled.
Still more work needed to get object motion blur ready.
2012-10-09 18:37:14 +00:00
Campbell Barton
fbe13ab84a style cleanup 2012-09-20 12:29:28 +00:00
Brecht Van Lommel
adea12cb01 Cycles: merge of changes from tomato branch.
Regular rendering now works tiled, and supports save buffers to save memory
during render and cache render results.

Brick texture node by Thomas.
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Textures#Brick_Texture

Image texture Blended Box Mapping.
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Textures#Image_Texture
http://mango.blender.org/production/blended_box/

Various bug fixes by Sergey and Campbell.
* Fix for reading freed memory in some node setups.
* Fix incorrect memory read when synchronizing mesh motion.
* Fix crash appearing when direct light usage is different on different layers.
* Fix for vector pass gives wrong result in some circumstances.
* Fix for wrong resolution used for rendering Render Layer node.
* Option to cancel rendering when doing initial synchronization.
* No more texture limit when using CPU render.
* Many fixes for new tiled rendering.
2012-09-04 13:29:07 +00:00
Campbell Barton
2c1abe1f58 style cleanup: assignment & indentation. 2012-06-09 18:56:12 +00:00
Brecht Van Lommel
78cf502c80 Cycles: border render now works in the viewport, when looking through the
camera, same as in render. It draws objects in solid draw mode outside of
the border.
2012-06-06 23:27:43 +00:00
Brecht Van Lommel
022d12a721 Fix most of #31307: cycles panorama camera not working correct with speed
vectors and window texture coordinates. Only for Fisheye Equisolid it's
still not working correct yet. Patch from Dalai with modifications.
2012-05-07 10:53:09 +00:00
Dalai Felinto
d7fbe03a8a Fisheye Camera for Cycles
For sample images see:
http://www.dalaifelinto.com/?p=399 (equisolid)
http://www.dalaifelinto.com/?p=389 (equidistant)

The 'use_panorama' option is now part of a new Camera type: 'Panorama'.
Created two other panorama cameras:

- Equisolid: most of lens in the market simulate this lens - e.g. Nikon, Canon, ...)
             this works as a real lens up to an extent. The final result takes the
             sensor dimensions into account also.
             .:. to simulate a Nikon DX2S with a 10.5mm lens do:
                 sensor: 23.7 x 15.7
                 fisheye lens: 10.5
                 fisheye fov: 180
                 render dimensions: 4288 x 2848

- Equidistant: this is not a real lens model. Although the old equidistant lens simulate
               this lens. The result is always as a circular fisheye that takes the whole sensor
               (in other words, it doesn't take the sensor into consideration).
               This is perfect for fulldomes ;)

               For the UI we have 10 to 360 as soft values and 10 to 3600 as hard values (because we can).


Reference material:
http://www.hdrlabs.com/tutorials/downloads_files/HDRI%20for%20CGI.pdf
http://www.bobatkins.com/photography/technical/field_of_view.html

Note, this is not a real simulation of the light path through the lens.
The ideal solution would be this:
https://graphics.stanford.edu/wikis/cs348b-11/Assignment3
http://www.graphics.stanford.edu/papers/camera/


Thanks Brecht for the fix, suggestions and code review.
Kudos for the dome community for keeping me stimulated on the topic since 2009 ;)

Patch partly implemented during lab time at VisGraf, IMPA - Rio de Janeiro.
2012-05-04 16:20:51 +00:00
Brecht Van Lommel
1e2afcddd3 Fix #31168: cycles mask layer should only affect objects for camera rays.
Fix: texture coordinate normal output was not correct, still changed under
object transform.
2012-05-02 09:33:45 +00:00
Brecht Van Lommel
1d8c798188 Cycles: support for motion vector and UV passes.
Most of the changes are related to adding support for motion data throughout
the code. There's some code for actual camera/object motion blur raytracing
but it's unfinished (it badly slows down the raytracing kernel even when the
option is turned off), so that code it disabled still.

Motion vector export from Blender tries to avoid computing derived meshes
when the mesh does not have a deforming modifier, and it also won't store
motion vectors for every vertex if only the object or camera is moving.
2012-04-30 12:49:26 +00:00
Brecht Van Lommel
93df58160e Fix #30966: cycles nan mesh vertices got set to (0, 0, 0), now remove them instead. 2012-04-16 08:35:21 +00:00
Brecht Van Lommel
4a90339519 Cycles: support for camera rendering an environment map with equirectangular
environment map, by enabling the Panorama option in the camera.

http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Camera#Panorama

The focal length or sensor settings are not used, the UI can be tweaked still to
communicate this, also panorama should probably become a proper camera type like
perspective or ortho.
2012-02-28 16:44:54 +00:00
Brecht Van Lommel
40259cfe7b Cycles: avoid using float3 in kernel constant memory, just so we're sure alignment
is working compatible between cpu and gpu.
2011-12-20 12:25:45 +00:00
Brecht Van Lommel
72d2d05770 Cycles: border rendering support, includes some refactoring in how pixels are
accessed on devices.
2011-12-20 12:25:37 +00:00
Brecht Van Lommel
66b1dfae89 Cycles: tweaks to properties and nodes
* Passes renamed to samples
* Camera lens radius renamed to aperature size/blades/rotation
* Glass and fresnel nodes input is now index of refraction
* Glossy and velvet fresnel socket removed
* Mix/add closure node renamed to mix/add shader node
* Blend weight node added for shader mixing weights

There is some version patching code for reading existing files, but it's not
perfect, so shaders may work a bit different.
2011-09-16 13:14:02 +00:00
Ton Roosendaal
da376e0237 Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later.
Cycles uses code from some great open source projects, many thanks them:

* BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs":
http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/
* Open Shading Language for a large part of the shading system:
http://code.google.com/p/openshadinglanguage/
* Blender for procedural textures and a few other nodes.
* Approximate Catmull Clark subdivision from NVidia Mesh tools:
http://code.google.com/p/nvidia-mesh-tools/
* Sobol direction vectors from:
http://web.maths.unsw.edu.au/~fkuo/sobol/
* Film response functions from:
http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00