Commit Graph

27 Commits

Author SHA1 Message Date
Sergey Sharybin
ed935ae5ad Cycles: Use lock in the memory statistics
CPU rendering is allowed to allocate memory from multiple threads,
which means statistics need to be avare of this.
2014-12-02 15:50:46 +05:00
Sergey Sharybin
d4315398fc Cycles: Remove dynamic library helper files
They were only needed for CUDA wrangler. Since we've switched to CUEW
this utility functions are no longer needed.
2014-11-20 18:56:20 +05:00
Jason Wilkins
8d084e8c8f Ghost Context Refactor
https://developer.blender.org/D643
Separates graphics context creation from window code in Ghost so that they can vary separately.
2014-10-07 15:47:32 -05:00
Sergey Sharybin
13d8671a1a Cycles: Add support of Glog logging
This commit makes it possible to use Glog library for the debug logging.
For now only possible when using CMake and in order to use the logging
the WITH_CYCLES_LOGGING configuration variable is to be enabled.

When this option is not enabled or when using Scons there's no difference
in Cycles behavior at all, when using logging and no output to the console
impact is gonna to be minimal.

This is done in order to make it possible to have debug logging persistent
in code (without need to add it when troubleshooting some bug and removing
it afterwards).

For now actual logging is not placed yet, only all the functions needed for
the logging are written and so.
2014-09-25 17:08:32 +06:00
Sergey Sharybin
77b7e1fe9a Deduplicate CUDA and OpenCL wranglers
For now it was mainly about OpenCL wrangler being duplicated
between Cycles and Compositor, but with OpenSubdiv work those
wranglers were gonna to be duplicated just once again.

This commit makes it so Cycles and Compositor uses wranglers
from this repositories:

  - https://github.com/CudaWrangler/cuew
  - https://github.com/OpenCLWrangler/clew

This repositories are based on the wranglers we used before
and they'll be likely continued maintaining by us plus some
more players in the market.

Pretty much straightforward change with some tricks in the
CMake/SCons to make this libs being passed to the linker
after all other libraries in order to make OpenSubdiv linked
against those wranglers in the future.

For those who're worrying about Cycles being less standalone,
it's not truth, it's rather more flexible now and in the future
different wranglers might be used in Cycles. For now it'll
just mean those libs would need to be put into Cycles repository
together with some other libs from Blender such as mikkspace.

This is mainly platform maintenance commit, should not be any
changes to the user space.

Reviewers: juicyfruit, dingto, campbellbarton

Reviewed By: juicyfruit, dingto, campbellbarton

Differential Revision: https://developer.blender.org/D707
2014-08-05 13:57:50 +06:00
Thomas Dinges
cd5e1ff74e Cycles Refactor: Add SSE Utility code from Embree for cleaner SSE code.
This makes the code a bit easier to understand, and might come in handy
if we want to reuse more Embree code.

Differential Revision: https://developer.blender.org/D482

Code by Brecht, with fixes by Lockal, Sergey and myself.
2014-06-13 21:59:12 +02:00
d9e52ac98b Code cleanup: move half float functions to separate header file. 2014-01-15 15:29:22 +01:00
Thomas Dinges
9351ac0d85 Cycles: Skip the compilation of the dedicated SSE2 kernel on x86-64, we can assume SSE2 here, so just re-use the regular one. Saves 500kb in the blender binary.
Reviewed by: brecht
Differential Revision: https://developer.blender.org/D199
2014-01-14 20:39:54 +01:00
Thomas Dinges
1578b55c27 Cycles: Move SIMD utility functions into its own file.
Recently added SSE macros for noise texture can be moved here as well, but I leave this for later.
2013-12-27 21:30:21 +01:00
Thomas Dinges
a51f8e4353 Cycles / Standalone:
* Standalone can now be compiled without the GUI, making the glut dependency optional. 

Added WITH_CYCLES_STANDALONE_GUI cmake flag.
2013-08-30 17:34:27 +00:00
Thomas Dinges
ff4e018753 Cycles / Standalone:
* Rename test to standalone.

Note: New CMAKE flag is WITH_CYCLES_STANDALONE.
2013-08-27 02:37:48 +00:00
Brecht Van Lommel
b9ce231060 Cycles: relicense GNU GPL source code to Apache version 2.0.
More information in this post:
http://code.blender.org/

Thanks to all contributes for giving their permission!
2013-08-18 14:16:15 +00:00
Brecht Van Lommel
57cf48e7c6 Cycles Hair: refactoring to support generic attributes for hair curves. There
should be no functional changes yet. UV, tangent and intercept are now stored
as attributes, with the intention to add more like multiple uv's, vertex
colors, generated coordinates and motion vectors later.

Things got a bit messy due to having both triangle and curve data in the same
mesh data structure, which also gives us two sets of attributes. This will get
cleaned up when we split the mesh class.
2013-01-03 12:08:54 +00:00
Campbell Barton
767bfba808 cmake was missing some header files. 2012-12-04 14:43:42 +00:00
Campbell Barton
536d9fec80 code cleanup:
- move object_iterators.c --> view3d_iterators. (ED_object.h had to include ED_view3d.h which isn't so nice)
- move projection functions from view3d_view.c --> view3d_project.c (view3d_view was becoming a mishmash of utility functions and operators).
- some some cmake includes as system-includes.
2012-10-17 04:13:03 +00:00
Campbell Barton
b0c7c8756f code cleanup: cycles now uses system includes for boost/oiio.. etc, so we dont get warnings from system headers. 2012-09-20 09:04:43 +00:00
Lukas Toenne
a9105a7dea Fix for Cycles (CUDA) compilation (again ...). Moved the AttributeStandard enum typedef and the attribute_standard_name mapping function to util_attribute/util_types headers, so they can properly be used by kernel and render files alike. This should avoid any std C includes which are not available in CUDA. Thanks to Sergey for help! 2012-09-07 11:06:45 +00:00
Brecht Van Lommel
07b2241fb1 Cycles: merging features from tomato branch.
=== BVH build time optimizations ===

* BVH building was multithreaded. Not all building is multithreaded, packing
  and the initial bounding/splitting is still single threaded, but recursive
  splitting is, which was the main bottleneck.

* Object splitting now uses binning rather than sorting of all elements, using
  code from the Embree raytracer from Intel.
  http://software.intel.com/en-us/articles/embree-photo-realistic-ray-tracing-kernels/

* Other small changes to avoid allocations, pack memory more tightly, avoid
  some unnecessary operations, ...

These optimizations do not work yet when Spatial Splits are enabled, for that
more work is needed. There's also other optimizations still needed, in
particular for the case of many low poly objects, the packing step and node
memory allocation.

BVH raytracing time should remain about the same, but BVH build time should be
significantly reduced, test here show speedup of about 5x to 10x on a dual core
and 5x to 25x on an 8-core machine, depending on the scene.

=== Threads ===

Centralized task scheduler for multithreading, which is basically the
CPU device threading code wrapped into something reusable.

Basic idea is that there is a single TaskScheduler that keeps a pool of threads,
one for each core. Other places in the code can then create a TaskPool that they
can drop Tasks in to be executed by the scheduler, and wait for them to complete
or cancel them early.

=== Normal ====

Added a Normal output to the texture coordinate node. This currently
gives the object space normal, which is the same under object animation.

In the future this might become a "generated" normal so it's also stable for
deforming objects, but for now it's already useful for non-deforming objects.

=== Render Layers ===

Per render layer Samples control, leaving it to 0 will use the common scene
setting.

Environment pass will now render environment even if film is set to transparent.

Exclude Layers" added. Scene layers (all object that influence the render,
directly or indirectly) are shared between all render layers. However sometimes
it's useful to leave out some object influence for a particular render layer.
That's what this option allows you to do.

=== Filter Glossy ===

When using a value higher than 0.0, this will blur glossy reflections after
blurry bounces, to reduce noise at the cost of accuracy. 1.0 is a good
starting value to tweak.

Some light paths have a low probability of being found while contributing much
light to the pixel. As a result these light paths will be found in some pixels
and not in others, causing fireflies. An example of such a difficult path might
be a small light that is causing a small specular highlight on a sharp glossy
material, which we are seeing through a rough glossy material. With path tracing
it is difficult to find the specular highlight, but if we increase the roughness
on the material the highlight gets bigger and softer, and so easier to find.

Often this blurring will be hardly noticeable, because we are seeing it through
a blurry material anyway, but there are also cases where this will lead to a
loss of detail in lighting.
2012-04-28 08:53:59 +00:00
Brecht Van Lommel
ef6eab3ce4 Cycles: move clew into cycles namespace to avoid conflicts, and fix mesh
displacement panel showing with blender internal.
2011-11-15 19:23:35 +00:00
Campbell Barton
cd9b51c1bf add some missing headers to cmake, also add some files as comments since it seems they should be added but evidently work fine without. 2011-11-10 06:05:22 +00:00
Campbell Barton
33814e0093 edits to cycles cmake files so cmake_consistency_check.py can parse them. 2011-11-08 20:27:37 +00:00
Brecht Van Lommel
e9b967d05b Cycles: remove deprecated strict aliasing flag for opencl, fix missing update
modifying object layer in properties editor, and add memarena utility.
2011-09-19 11:57:31 +00:00
Brecht Van Lommel
27102bfec4 Cycles: OpenCL library is now dynamically loaded so that blender doesn't crash
if it's not installed on the system.

Code copied from clew.h/clew.c in CLCC:
http://clcc.sourceforge.net/
2011-09-01 19:00:23 +00:00
Brecht Van Lommel
360fcd73fe Cycles:
* add some (disabled) test code for using OpenImageIO in imbuf
* link cycles, openimageio and boost into blender instead of a shared library
* some cmakefile changes to simplify the code and follow conventions better
* this may solve running cycles problems on windows XP, or give a different
  and hopefully more useful error message
2011-08-16 16:15:34 +00:00
Brecht Van Lommel
170f8c8c41 Cycles: build without GLUT test app by default. 2011-05-01 10:00:21 +00:00
Brecht Van Lommel
774584d7e8 Cycles: hook up the CMake build system.
New build instructions for Ubuntu Linux in the wiki:
http://wiki.blender.org/index.php/Dev:2.5/Source/Cycles
2011-04-28 13:47:27 +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