Commit Graph

170 Commits

Author SHA1 Message Date
Sergey Sharybin
14f6e27f6a Cycles: Cleanup, style 2017-01-13 15:24:56 +01:00
Lukas Stockner
a2ebc5268f Cycles: Refactor Progress system to provide better estimates
The Progress system in Cycles had two limitations so far:
 - It just counted tiles, but ignored their size. For example, when rendering a 600x500 image with 512x512 tiles, the right 88x500 tile would count for 50% of the progress, although it only covers 15% of the image.
 - Scene update time was incorrectly counted as rendering time - therefore, the remaining time started very long and gradually decreased.

This patch fixes both problems:
First of all, the Progress now has a function to ignore time spans, and that is used to ignore scene update time.
The larger change is the tile size: Instead of counting samples per tile, so that the final value is num_samples*num_tiles, the code now counts every sample for every pixel, so that the final value is num_samples*num_pixels.

Along with that, some unused variables were removed from the Progress and Session classes.

Reviewers: brecht, sergey, #cycles

Subscribers: brecht, candreacchio, sergey

Differential Revision: https://developer.blender.org/D2214
2016-12-03 05:02:21 +01:00
111e2f5aba Fix T49904: Cycles standalone missing default generated texture coordinates. 2016-11-12 17:33:07 +01:00
69288737ca Fix Cycles standalone not finding CPU device after recent changes. 2016-11-12 17:33:07 +01:00
188ecee642 Fix T49985: cycles standalone using wrong socket names for XML reading. 2016-11-12 17:33:07 +01:00
Mai Lavelle
74bd809962 Cycles Standalone: Fix support for subdivision meshes
Changes from microdisplacement work broke previous support for subdivision
meshes, sometimes leading to crashes; this makes things work again. Files
that contain "patch" nodes will need to be updated to use meshes instead, as
specifying patches was both inefficient and completely unsupported by the new
subdivision code.
2016-08-24 10:39:00 -04:00
Mai Lavelle
4d1bf1472e Cycles Standalone: Fix building after microdisp changes 2016-08-10 14:08:13 -04:00
Lukas Stockner
ef27d8ec5a Cycles Standalone: Add option to set the tile size from the command line
Since the optimal values depend on the device used, this option doesn't make much sense in the XML.
Therefore, it's now specified via the command line, just like the device itself.
2016-08-10 19:17:03 +02:00
Mai Lavelle
c96ae81160 Cycles microdisplacement: ngons and attributes for subdivision meshes
This adds support for ngons and attributes on subdivision meshes. Ngons are
needed for proper attribute interpolation as well as correct Catmull-Clark
subdivision. Several changes are made to achieve this:

- new primitive `SubdFace` added to `Mesh`
- 3 more textures are used to store info on patches from subd meshes
- Blender export uses loop interface instead of tessface for subd meshes
- `Attribute` class is updated with a simplified way to pass primitive counts
  around and to support ngons.
- extra points for ngons are generated for O(1) attribute interpolation
- curves are temporally disabled on subd meshes to avoid various bugs with
  implementation
- old unneeded code is removed from `subd/`
- various fixes and improvements

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D2108
2016-07-29 03:36:30 -04:00
24d53f79b2 Fix Cycles debug build assert on some platforms, tighten checks to avoid this in the future. 2016-06-12 17:35:15 +02:00
42aec3b355 Cycles: nodify shader nodes
Differential Revision: https://developer.blender.org/D2038
2016-06-11 20:32:24 +02:00
Sergey Sharybin
d5220d23f9 Cycles: Fixes for recent refactor
- add_vertex() can be called from split_vertex() which does not guarantee
  to have properly pre-allocate arrays.

- Need to check whether Cycles is compiled with OSL in XML reader.
2016-05-31 15:32:31 +02:00
11b0874db0 Code refactor: store ShaderNode enums as enum rather than ustring. 2016-05-29 20:30:16 +02:00
a70a435f28 Code refactor: centralize OSL node creation in shader manager. 2016-05-29 20:30:16 +02:00
7cd18dda7d Fix debug mode assert in subd code after recent refactoring. 2016-05-29 20:30:16 +02:00
b94bfe4cd8 Code refactor: make ShaderNode match Node a bit more, reusing types and enums.
Differential Revision: https://developer.blender.org/D2016
2016-05-28 15:49:15 +02:00
98ad473324 Code refactor: nodify Cycles camera and fix some mistakes in XML node read.
Differential Revision: https://developer.blender.org/D2016
2016-05-28 14:07:19 +02:00
Sergey Sharybin
6894bb0555 Fix T48334: Cycles standalone xml import of uv coordinates
In Cycle standalone, the xml import of uv's is done in a way that
a vertex could only have one unique uv coordinate. In practice it
is most of the time not the case.

Patch by Laurent Boiron, thanks!
2016-05-23 13:38:15 +02:00
9b9921b765 Code refactor: nodify Cycles shader and lights.
Differential Revision: https://developer.blender.org/D2016
2016-05-22 17:29:25 +02:00
e7d13b8a1d Code refactor: nodify Cycles background and film.
Differential Revision: https://developer.blender.org/D2016
2016-05-22 17:29:25 +02:00
0062d9f58c Code refactor: nodify Cycles integrator.
Differential Revision: https://developer.blender.org/D2016
2016-05-22 17:29:25 +02:00
ec51175f1f Code refactor: add generic Cycles node infrastructure.
Differential Revision: https://developer.blender.org/D2016
2016-05-22 17:29:24 +02:00
Lukas Stockner
ad14c471eb Cycles: Add XML parsing of MappingNodes to Cycles Standalone
Reviewers: dingto, sergey

Differential Revision: https://developer.blender.org/D2009
2016-05-19 21:28:57 +02:00
0e8cd14dfe Code refactor: use shader pointers rather than shader indexes. 2016-05-17 21:39:16 +02:00
Martijn Berger
0a277f7428 Fix cycles-xml with OSL support after changes inroduced in 1422f0dd1697d7b671a7b447fd58db7dfe775821 2016-05-07 10:50:21 +02:00
Sergey Sharybin
bd7e4d2a3d Tweaks to the version string formation
Couple of things:

- No need to use string streams to format the version string,
  we can do it at compile time and don't bother with anything
  at runtime.

- Function declaration was wring and would have caused linking
  conflicts in cases when util_version.h was included from
  multiple places.

We should have an utility function to get Cycles version so
applications which are linked to Cycles dynamically can query
the version, but that can't be done as an inlined function in
header and would need to be a function properly exported to a
global symbol table (aka, be implemented in a .cpp file).
2016-04-13 09:45:26 +02:00
Thomas Dinges
ed050753ce Add a version number to Cycles standalone
Now Cycles has its own versioning, that is mainly interesting for external projects, which integrate the engine.

We start with version 1.7.0. Reasons for that:

* The engine is too mature for a 1.0 release.
* We assume that Cycles inside of Blender 2.61 was version 0.1. We count upwards in 0.1 steps, therefore Cycles inside of Blender 2.77 would be 1.7.

We use a common versioning scheme here, with 3 decimals for the major, minor and patch level.

At the moment cycles --version can be used to display the version, easy to parse for external projects. The info will be added to the UI later aswell.
2016-04-13 09:45:23 +02:00
Thomas Dinges
b8ca4819b2 Revert "Cycles: Remove the Preetham Sky model."
This reverts commit d91316dc672dc1ee69fbd24d2f00124a24b75c6b.
2016-04-05 12:25:54 +02:00
Thomas Dinges
d91316dc67 Cycles: Remove the Preetham Sky model.
The improved Hosek / Wilkie model was added during my GSoC 2013 and the default since then.

The older model was kinda kept for compatibility, but after more than 2 years it's time to remove it.
The Hosek / Wilkie model is more realistic anyway, and people who really want a day / night transition can mix the Sky Shader with another one (e.g. color) and fade between the two.
2016-04-02 23:36:14 +02:00
Martijn Berger
74d3f3746c CMake cleanup target_link_libraries_decoupled 2016-03-30 15:15:17 +02:00
Sergey Sharybin
003f908f0d Fix T47987: Blender Cycles standalone does not properly read UV coordinates from XML 2016-03-29 10:02:17 +02:00
Martijn Berger
b5b269ac11 Fix compilation of cycles standalone and network device 2016-03-11 10:00:47 +01:00
Dalai Felinto
de7a8af793 Multi-View: Cycles - Spherical Stereo support (VR Panoramas)
This is a new option for panorama cameras to render
stereo that can be used in virtual reality devices

The option is available under the camera panel when Multi-View is enabled (Views option in the Render Layers panel)

Known limitations:
------------------
* Parallel convergence is not supported (you need to set a convergence distance really high to simulate this effect).

* Pivot was not supposed to affect the render but it does, this has to be looked at, but for now set it to CENTER

* Derivatives in perspective camera need to be pre-computed or we shuld get rid of kcam->dx/dy (Sergey words, I don't fully grasp the implication shere)

* This works in perspective mode and in panorama mode. However, for fully benefit from this effect in perspective mode you need to render a cube map. (there is an addon for this, developed separately, perhaps we could include it in master).

* We have no support for "neck distance" at the moment. This is supposed to help with objects at short distances.

* We have no support to rotate the "Up Axis" of the stereo plane. Meaning, we hardcode 0,0,1 as UP, and create the stereo pair related to that. (although we could take the camera local UP when rendering panoramas, this wouldn't work for perspective cameras.

* We have no support for interocular distance attenuation based on the proximity of the poles  (which helps to reduce the pole rotation effect/artifact).

THIS NEEDS DOCS - both in 2.78 release log and the Blender manual.
Meanwhile you can read about it here: http://code.blender.org/2015/03/1451

This patch specifically dates from March 2015, as you can see in the code.blender.org post. Many thanks to all the reviewers, testers and minor sponsors who helped me maintain spherical-stereo for 1 year.

All that said, have fun with this. This feature was what got me started with Multi-View development (at the time what I was looking for was Fulldome stereo support, but the implementation is the same). In order to make this into Blender I had to make it aiming at a less-specic user-case	 Thus Multi-View started. (this was December 2012, during Siggraph Asia and a chat I had with Paul Bourke during the conference). I don't have the original patch anymore, but you can find a re-based version of it from March 2013, right before I start with the Multi-View project https://developer.blender.org/P332

Reviewers: sergey, dingto

Subscribers: #cycles

Differential Revision: https://developer.blender.org/D1223
2016-03-10 09:28:29 -03:00
Martijn Berger
b5171e250c Make cycles standalone link again 2016-02-15 21:00:25 +01:00
Sergey Sharybin
ad26407b52 Cycles: Implement approximate reflectance profiles
Using this paper:

  http://graphics.pixar.com/library/ApproxBSSRDF/paper.pdf

This model gives less blurry results than the Cubic and Gaussian
we had implemented:

- Cubic: https://developer.blender.org/F279670
- Burley: https://developer.blender.org/F279671

The model is called "Christensen-Burley" in the interface, which
actually should be read as "Physically based" or "Realistic".

Reviewers: juicyfruit, dingto, lukasstockner97, brecht

Reviewed By: brecht, dingto

Subscribers: robocyte

Differential Revision: https://developer.blender.org/D1759
2016-02-04 13:27:23 +05:00
Sergey Sharybin
2af7637f20 Cycles: Add option to directly link against CUDA libraries
The main purpose of such linking is to make Blender compatible with
NVidia's debuggers and profilers which are doing some LD_PRELOAD
magic to intercept some function calls. Such magic conflicts with
our CUDA wrangler magic and causes segmentation faults.

The option is disabled by default, so there's no affect on any of
artists.

In order to make Blender linked directly against CUDA library use
the WITH_CUDA_DYNLOAD CMake option (it's marked as advanced).
2016-01-14 12:27:22 +05:00
Lukas Stockner
64df7a2b38 Cycles: Read Wave texture profile in the XML parser 2016-01-10 00:24:12 +01:00
Martijn Berger
2d9ed6e7c8 fix compiling cycles after recent gflags / glog shuffle 2016-01-05 14:14:10 +01:00
Martijn Berger
e2d3e36ca7 Cycles standalone: add support for reading UV coordinates to the XML scene reader 2015-06-27 12:05:05 +02:00
Thomas Dinges
6a33d13ae7 Expose Background AO and Transparent flag to XML API 2015-06-12 00:32:00 +02:00
Thomas Dinges
a6101cde06 Cycles XML API: * Add Bump and Holdout Node * Add todo comments for various things. * SSS falloff now works. 2015-06-01 19:56:39 +05:00
Thomas Dinges
b10bc3a6ec Cycles: Number keys 0-3 can be used in interactive mode now to set max bounces. 2015-06-01 19:56:36 +05:00
Martijn Berger
8dd9b7cc5f Cycles standalone, add device type in output listing 2015-05-20 17:11:09 +02:00
Martijn Berger
3ed009af96 Change behavior of cycles xml to conform the spec: "Each XML document has exactly one single root element" 2015-05-17 23:41:38 +02:00
Thomas Dinges
effb912061 Cycles Standalone: Expose various light settings. 2015-05-17 12:36:42 +02:00
Thomas Dinges
d01b226870 Cleanup: Remove leftover from Distorted Noise node in XML reader. 2015-05-05 10:38:45 +02:00
Thomas Dinges
66f96e555c Cycles: Fix copy / paste mistake in XML reader. 2015-05-04 14:31:20 +02:00
Sergey Sharybin
16794f908f Cycles: Fix possible uninitialized XML read state which might cause crashes 2015-04-30 15:46:09 +05:00
Martijn Berger
3204aff6d0 Fix compilation of cycles network server when logging is enabled 2015-03-29 22:22:53 +02:00
Sergey Sharybin
5ff132182d Cycles: Code cleanup, spaces around keywords
This inconsistency drove me totally crazy, it's really confusing
when it's inconsistent especially when you work on both Cycles and
Blender sides.

Shouldn;t cause merge PITA, it's whitespace changes only, Git should
be able to merge it nicely.
2015-03-28 00:15:15 +05:00