Commit Graph

312 Commits

Author SHA1 Message Date
c7c7bfae75 Merge branch 'master' into blender2.8 2018-07-13 12:22:21 +02:00
30bffb5a3a Nodes: add sqrt, ceil, floor and fract to math nodes.
This works for Cycles, Eevee, texture nodes and compositing. It helps to
reduce the number of math nodes required in various node setups.

Differential Revision: https://developer.blender.org/D3537
2018-07-13 11:00:10 +02:00
de777ad9e6 Merge branch 'master' into blender2.8 2018-07-06 10:18:52 +02:00
1daa20ad9f Cleanup: strip trailing space for cycles 2018-07-06 10:17:58 +02:00
25b7bdb6a9 Merge branch 'master' into blender2.8 2018-06-30 09:29:38 +02:00
ccacf3ae3c Cycles: change AO node default to 16 samples and only local off. 2018-06-29 15:43:55 +02:00
d32e4ca701 Merge branch 'master' into blender2.8 2018-06-25 07:43:51 +02:00
574c716f2d Cycles: change AO node color default to 1.0. 2018-06-24 12:24:30 +02:00
01f576e87b Merge branch 'master' into blender2.8
The Eevee AO node supports the new Normal socket, but ignores Distance,
Samples, Inside and Only Local settings.
2018-06-15 23:16:49 +02:00
799779d432 Cycles: change Ambient Occlusion shader to output colors.
This means the shader can now be used for procedural texturing. New
settings on the node are Samples, Inside, Local Only and Distance.

Original patch by Lukas with further changes by Brecht.

Differential Revision: https://developer.blender.org/D3479
2018-06-15 22:16:06 +02:00
27de412ca8 Merge remote-tracking branch 'origin/master' into blender2.8 2018-06-14 22:54:42 +02:00
3ee606621c Cycles: Query XYZ to/from Scene Linear conversion from OCIO instead of assuming sRGB
I've limited it to just the RGB<->XYZ stuff for now, correct image handling is the next step.

Reviewers: brecht, sergey

Differential Revision: https://developer.blender.org/D3478
2018-06-14 22:21:37 +02:00
0461f45e5e Fix T55436: crash with point density and shader tweaking.
With copy-on-write we can no longer assumes the point density data is
available after Cycles synchronization with Blender data is done. So
force it to be loaded earlier, even if it's not great for interactivity.
2018-06-11 17:06:28 +02:00
48155c210a Cycles: Add Support for IES files as textures for light strength
This patch adds support for IES files, a file format that is commonly used to store the directional intensity distribution of light sources.
The new IES node is supposed to be plugged into the Strength input of the Emission node of the lamp.

Since people generating IES files do not really seem to care about the standard, the parser is flexible enough to accept all test files I have tried.
Some common weirdnesses are distributing values over multiple lines that should go into one line, using commas instead of spaces as delimiters and adding various useless stuff at the end of the file.

The user interface of the node is similar to the script node, the user can either select an internal Text or load a file.
Internally, IES files are handled similar to Image textures: They are stored in slots by the LightManager and each unique IES is assigned to one slot.

The local coordinate system of the lamp is used, so that the direction of the light can be changed. For UI reasons, it's usually best to add an area light,
rotate it and then change its type, since especially the point light does not immediately show its local coordinate system in the viewport.

Reviewers: #cycles, dingto, sergey, brecht

Reviewed By: #cycles, dingto, brecht

Subscribers: OgDEV, crazyrobinhood, secundar, cardboard, pisuke, intrah, swerner, micah_denn, harvester, gottfried, disnel, campbellbarton, duarteframos, Lapineige, brecht, juicyfruit, dingto, marek, rickyblender, bliblubli, lockal, sergey

Differential Revision: https://developer.blender.org/D1543
2018-05-27 01:24:57 +02:00
6862762685 Cycles/Compositor: Add arctan2 operation to the Math node
The Math node currently has the normal atan() function, but for
actual angles this is fairly useless without additional nodes to handle the signs.

Since the node has two inputs anyways, it only makes sense to add an arctan2 option.

Reviewers: sergey, brecht

Differential Revision: https://developer.blender.org/D3430
2018-05-24 16:46:02 +02:00
16c05161e7 Cycles: Cleanup: Remove double semicolons 2018-04-29 09:28:41 +02:00
e07dd9fd59 Cycles: add constant folding to displacement nodes. 2018-03-12 17:29:44 +01:00
7613ffc944 Cycles: switch to squared roughness convention for all nodes.
This was already done for the Principled BSDF to be compatible with typical
baked roughness maps in PBR workflows.
2018-03-10 18:05:01 +01:00
b66efbecf4 Code refactor: make Transform always affine, dropping last row.
This save a little memory and copying in the kernel by storing only a 4x3
matrix instead of a 4x4 matrix. We already did this in a few places, and
those don't need to be special exceptions anymore now.
2018-03-10 04:54:05 +01:00
2eb94be750 Code cleanup: refactor Cycles image metadata retrieval to use a struct. 2018-02-27 23:42:30 +01:00
0aec2dcd3a Cycles: add Principled Volume shader.
Similar to the Principled BSDF, this should make it easier to set up volume
materials. Smoke and fire can be rendererd with just a single principled
volume node, the appropriate attributes will be used when available. The node
also works for simpler homogeneous volumes like water or mist.

Differential Revision: https://developer.blender.org/D3033
2018-02-23 18:57:58 +01:00
a963c7d48d Code refactor: improve attribute handling for optional volume attributes.
A volume shader should be able to request attributes, and still be rendered
as homogeneous if no volume attributes are available for the object.
2018-02-23 18:57:58 +01:00
6a48a9dc6e Code cleanup: fix incorrect socket names in hair and particle info nodes. 2018-02-22 00:55:11 +01:00
b5fe00d1ac Cycles: restore Particle Info Index for now, keep it next to Random.
It seems to be useful still in cases where the particle are distributed in
a particular order or pattern, to colorize them along with that. This isn't
really well defined, but might as well avoid breaking backwards compatibility
for now.
2018-02-14 21:45:57 +01:00
f6107af4cf Cycles: change Index output of Hair and Particle Info to Random, in 0..1 range.
These are used for randomization, so it's convenient if the index is already
hashed and consistent with the Object Info node.
2018-02-14 14:55:46 +01:00
37f65e9dc4 Cycles: Implement index output for hair node
This is like the only way to add variety to hair which is created
using simple children. Used here for the hair.

Maybe not ideal, but the time will show.
2018-02-13 14:20:47 +01:00
a6968e87f1 Cycles: add random walk subsurface scattering to Principled BSDF.
Differential Revision: https://developer.blender.org/D3054
2018-02-09 19:58:42 +01:00
0df9b2c715 Cycles: random walk subsurface scattering.
It is basically brute force volume scattering within the mesh, but part
of the SSS code for faster performance. The main difference with actual
volume scattering is that we assume the boundaries are diffuse and that
all lighting is coming through this boundary from outside the volume.

This gives much more accurate results for thin features and low density.
Some challenges remain however:

* Significantly more noisy than BSSRDF. Adding Dwivedi sampling may help
  here, but it's unclear still how much it helps in real world cases.
* Due to this being a volumetric method, geometry like eyes or mouth can
  darken the skin on the outside. We may be able to reduce this effect,
  or users can compensate for it by reducing the scattering radius in
  such areas.
* Sharp corners are quite bright. This matches actual volume rendering
  and results in some other renderers, but maybe not so much real world
  objects.

Differential Revision: https://developer.blender.org/D3054
2018-02-09 19:58:33 +01:00
f9ea097a87 Cycles: add Vector Displacement node and extend Displacement node.
This adds midlevel and object/world space for displacement, and a
vector displacement node with tangent/object/world space, midlevel
and scale.

Note that tangent space vector displacement still is not exactly
compatible with maps created by other software, this will require
changes to the tangent computation.

Differential Revision: https://developer.blender.org/D1734
2018-02-03 12:20:26 +01:00
b129ea843a Cycles: change material output displacement to vector.
Previously only scalar displacement along the normal was supported,
now displacement can go in any direction. For backwards compatibility,
a Displacement node will be automatically inserted in existing files.

This will make it possible to support vector displacement maps in the
future. It's already possible to use them to some extent, but requires
a manual shader node setup. For tangent space maps the right tangent
may also not be available yet, depends on the map.

Differential Revision: https://developer.blender.org/D3015
2018-01-23 12:49:35 +01:00
4a5ee1a5a2 Cycles: add Displacement node.
This converts object space height to world space displacement, to be
linked to the new vector displacement material output.

Differential Revision: https://developer.blender.org/D3015
2018-01-23 11:12:26 +01:00
26f39e6359 Cycles: add bevel shader, for raytrace based rounded edges.
The algorithm averages normals from nearby surfaces. It uses the same
sampling strategy as BSSRDFs, casting rays along the normal and two
orthogonal axes, and combining the samples with MIS.

The main concern here is that we are introducing raytracing inside
shader evaluation, which could be quite bad for GPU performance and
stack memory usage. In practice it doesn't seem so bad though.

Note that using this feature can easily slow down renders 20%, and
that if you care about performance then it's better to use a bevel
modifier. Mainly this is useful for baking, and for cases where the
mesh topology makes it difficult for the bevel modifier to work well.

Differential Revision: https://developer.blender.org/D2803
2017-11-07 22:35:12 +01:00
ce0fce2207 Code cleanup: deduplicate some bsdf node methods. 2017-08-20 17:37:22 +02:00
b5f8063fb9 Cycles: support baking normals plugged into BSDFs, averaged with closure weight. 2017-08-20 16:51:53 +02:00
2b132fc3f7 Fix T52135: Cycles should not keep generated/packed images in memory after render. 2017-07-20 23:47:05 +02:00
87164114a3 Cycles: Enable SSS from Principled BSDF only when actually in use
This gives speed up for the split kernel in scenes using the principled BSDF
but without subsurface scattering.
2017-07-12 04:40:24 -04:00
14ea0c5fcc Fix T51849: change Cycles clearcoat gloss to roughness.
This is compatible with UE4 and more consistent with specular and transmission
roughness, even if it deviates from the original Disney BRDF.
2017-06-21 19:55:20 +02:00
Pascal Schoen
32c9d2322c Fix T51408: Cycles - Principled BSDF Shader - Transparency is not working as expected
Renamed the "Transparency" input of the Principled BSDF to
"Transmission" and "Refraction Roughness" to "Transmission Roughness".
2017-05-18 13:18:19 +02:00
Stefan Werner
ec25060a05 Unlimited number of textures for Cycles
This patch allows for an unlimited number of textures in Cycles where the hardware allows. It replaces a number static arrays with dynamic arrays and changes the way the flat_slot indices are calculated. Eventually, I'd like to get to a point where there are only flat slots left and textures off all kinds are stored in a single array.

Note that the arrays in DeviceScene are changed from containing device_vector<T> objects to device_vector<T>* pointers. Ideally, I'd like to store objects, but dynamic resizing of a std:vector in pre-C++11 calls the copy constructor, which for a good reason is not implemented for device_vector. Once we require C++11 for Cycles builds, we can implement a move constructor for device_vector and store objects again.

The limits for CUDA Fermi hardware still apply.

Reviewers: tod_baudais, InsigMathK, dingto, #cycles

Reviewed By: dingto, #cycles

Subscribers: dingto, smellslikedonkey

Differential Revision: https://developer.blender.org/D2650
2017-04-27 09:35:22 +02:00
b6da2a6a86 Cycles: Make it a generic base class for all types of closure nodes
The idea is to have osme geenric BSDF node which is subclassed by
"regular" BSDF nodes and uber shaders.

This way we can access special type and closure type for making
decisions somewhere else.
2017-04-21 14:36:56 +02:00
Pascal Schoen
8825a8e951 Squashed commit of the following:
commit 90778901c9
Merge: 76eebd9 3bf0026
Author: Schoen <schoepas@deher1m1598.emea.adsint.biz>
Date:   Mon Apr 3 07:52:05 2017 +0200

    Merge branch 'master' into cycles_disney_brdf

commit 76eebd9379
Author: Schoen <schoepas@deher1m1598.emea.adsint.biz>
Date:   Thu Mar 30 15:34:20 2017 +0200

    Updated copyright for the new files.

commit 013f4a152a
Author: Schoen <schoepas@deher1m1598.emea.adsint.biz>
Date:   Thu Mar 30 15:32:55 2017 +0200

    Switched from multiplication of base and subsurface color to blending
    between them using the subsurface parameter.

commit 482ec5d1f2
Author: Schoen <schoepas@deher1m1598.emea.adsint.biz>
Date:   Mon Mar 13 15:47:12 2017 +0100

    Fixed a bug that caused an additional white diffuse closure call when using
    path tracing.

commit 26e906d162
Merge: 0593b8c 223aff9
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Feb 6 11:32:31 2017 +0100

    Merge branch 'master' into cycles_disney_brdf

commit 0593b8c51b
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Feb 6 11:30:36 2017 +0100

    Fixed the broken GLSL shader and implemented the Disney BRDF in the
    real-time view port.

commit 8c7e11423b
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Feb 3 14:24:05 2017 +0100

    Fix to comply strict compiler flags and some code cleanup

commit 17724e9d2d
Merge: 379ba34 520afa2
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jan 24 09:59:58 2017 +0100

    Merge branch 'master' into cycles_disney_brdf

commit 379ba346b0
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jan 24 09:28:56 2017 +0100

    Renamed the Disney BSDF to Principled BSDF.

commit f80dcb4f34
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Dec 2 13:55:12 2016 +0100

    Removed reflection call when roughness is low because of artifacts.

commit 732db8a57f
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed Nov 16 09:22:25 2016 +0100

    Indication if to use fresnel is now handled via the type of the BSDF.

commit 0103659f5e
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Nov 11 13:04:11 2016 +0100

    Fixed an error in the clearcoat where it appeared too bright for default
    light sources (like directional lights)

commit 0aa68f5335
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Nov 7 12:04:38 2016 +0100

    Resolved inconsistencies in using tabs and spaces

commit f5897a9494
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Nov 7 08:13:41 2016 +0100

    Improved the clearcoat part by using GTR1 instead of GTR2

commit 3dfc240e61
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Oct 31 11:31:36 2016 +0100

    Use reflection BSDF for glossy reflections when roughness is 0.0 to
    reduce computational expense and some code cleanup

    Code cleanup includes:
    - Code style cleanup and removed unused code
    - Consolidated code in the bsdf_microfacet_multi_impl.h to reduce
      some computational expense

commit a2dd0c5faf
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed Oct 26 08:51:10 2016 +0200

    Fixed glossy reflections and refractions for low roughness values and
    cleaned up the code.

    For low roughness values, the reflections had some strange behavior.

commit 9817375912
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Oct 25 12:37:40 2016 +0200

    Removed default values in setup functions and added extra functions for
    GGX with fresnel.

commit bbc5d9d452
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Oct 25 11:09:36 2016 +0200

    Switched from uniform to cosine hemisphere sampling for the diffuse and
    the sheen part.

commit d52d8f2813
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Oct 24 16:17:13 2016 +0200

    Removed the color parameters from the diffuse and sheen shader and use
    them as closure weights instead.

commit 8f3d927385
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Oct 24 09:57:06 2016 +0200

    Fixed the issue with artifacts when using anisotropy without linking the
    tangent input to a tangent node.

commit d93f680db9
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Oct 24 09:14:51 2016 +0200

    Added subsurface radius parameter to control the per color channel
    effection radius of the subsurface scattering.

commit c708c3e53b
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Oct 24 08:14:10 2016 +0200

    Rearranged the inputs of the shader.

commit dfbfff9c38
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Oct 21 09:27:05 2016 +0200

    Put spaces in the parameter names of the shader node

commit e5a748ced1
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Oct 21 08:51:20 2016 +0200

    Removed code that isn't in use anymore

commit 75992bebc1
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Oct 21 08:50:07 2016 +0200

    Code style cleanup

commit 4dfcf455f7
Merge: 243a0e3 2cd6a89
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Thu Oct 20 10:41:50 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit 243a0e3eb8
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Thu Oct 20 10:01:45 2016 +0200

    Switching between OSL and SVM is more consistant now when using Disney
    BSDF.

    There were some minor differences in the OSL implementation, e.g. the
    refraction roughness was missing.

commit 2a5ac50922
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Sep 27 09:17:57 2016 +0200

    Fixed a bug that caused transparency to be always white when using OSL and
    selecting GGX as distribution of the Disney BSDF

commit e1fa862391
Merge: d0530a8 7f76f6f
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Sep 27 08:59:32 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit d0530a8af0
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Sep 27 08:53:18 2016 +0200

    Cleanup the Disney BSDF implementation and removing unneeded files.

commit 3f4fc826bd
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Sep 27 08:36:07 2016 +0200

    Unified the OSL implementation of the Disney clearcoat as a simple
    microfacet shader like it was previously done in SVM

commit 4d3a0032ec
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Sep 26 12:35:36 2016 +0200

    Enhanced performance for Disney materials without subsurface scattering

commit 3cd5eb56cf
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Sep 16 08:47:56 2016 +0200

    Fixed a bug in the Disney BSDF that caused specular reflections to be too
    bright and diffuse is now reacting to the roughness again

    - A normalization for the fresnel was missing which caused the specular
      reflections to become too bright for the single-scatter GGX
    - The roughness value for the diffuse BSSRDF part has always been
      overwritten and thus always 0
    - Also the performance for refractive materials with roughness=0.0 has
      been improved

commit 7cb37d7119
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Thu Sep 8 12:24:43 2016 +0200

    Added selection field to the Disney BSDF node for switching between
    "Multiscatter GGX" and "GGX"

    In the "GGX" mode there is an additional parameter for changing the
    refraction roughness for materials with smooth surfaces and rough interns
    (e.g. honey). With the "Multiscatter GGX" this effect can't be produced at
    the moment and so here will be no separation of the two roughness values.

commit cdd29d06bb
Merge: 02c315a b40d1c1
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Sep 6 15:59:05 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit 02c315aeb0
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Sep 6 15:16:09 2016 +0200

    Implemented the OSL part of the Disney shader

commit 5f880293ae
Merge: 630b80e b399a6d
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Sep 2 10:53:36 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit 630b80e08b
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Sep 2 10:52:13 2016 +0200

    Fresnel in the microfacet multiscatter implementation improved

commit 0d9f4d7acb
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Aug 26 11:11:05 2016 +0200

    Fixed refraction roughness problem (refractions were always 100% rough)
    and set IOR of clearcoat to 1.5

commit 9eed34c7d9
Merge: ef29aae ae475e3
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Aug 16 15:22:32 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit ef29aaee1a
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Aug 16 15:17:12 2016 +0200

    Implemented the fresnel in the multi-scatter GGX for the Disney BSDF

    - The specular/metallic part uses the multi-scatter GGX
    - The fresnel of the metallic part is controlled by the specular value
    - The color of the reflection part when using transparency can be
      controlled by the specularTint value

commit 88567af085
Merge: cc267e5 285e082
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed Aug 3 15:05:09 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit cc267e52f2
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed Aug 3 15:00:25 2016 +0200

    Implemented the Disney clearcoat as a variation of the microfacet bsdf,
    removed the transparency roughness again and added an input for
    anisotropic rotations

commit 81f6c06b1f
Merge: ece5a08 7065022
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed Aug 3 11:42:02 2016 +0200

    Merge branch 'master' into cycles_disney_brdf

commit ece5a08e0d
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jul 26 16:29:21 2016 +0200

    Base color now applied again to the refraction of transparent Disney
    materials

commit e3aff6849e
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jul 26 16:05:19 2016 +0200

    Added subsurface color parameter to the Disney shader

commit b3ca6d8a2f
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jul 26 12:30:25 2016 +0200

    Improvement of the SSS in the Disney shader

     * Now the bump normal is correctly used for the SSS.
     * SSS in Disney uses the Disney diffuse shader

commit d68729300e
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jul 26 12:23:13 2016 +0200

    Better calculation of the Disney diffuse part

    Now the values for NdotL und NdotV are clamped to 0.0f for a better look
    when using normal maps

commit cb6e500b12
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Jul 25 16:26:42 2016 +0200

    Now one can disable specular reflactions again by setting specular and
    metallic to 0 (cracked this in the previous commit)

commit bfb9cb11b5
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Jul 25 16:11:07 2016 +0200

    fixed the Disney SSS and cleaned the initialization of the Disney shaders

commit 642c0fdad1
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Jul 25 16:09:55 2016 +0200

    fixed an error that was caused by the missing LABEL_REFLECT in the Disney
    diffuse shader

commit c10b484dca
Author: Jens Verwiebe <info@jensverwiebe.de>
Date:   Fri Jul 22 01:15:21 2016 +0200

    Rollback attempt to fix sss crashing, it prevented crash by disabling sss completely, thus useless

commit 462bba3f97
Author: Jens Verwiebe <info@jensverwiebe.de>
Date:   Thu Jul 21 23:11:59 2016 +0200

    Add an undef for sc_next for safety

commit 32d348577d
Author: Jens Verwiebe <info@jensverwiebe.de>
Date:   Thu Jul 21 00:15:48 2016 +0200

    Attempt to fix Disney SSS

commit dbad91ca6d
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed Jul 20 11:13:00 2016 +0200

    Added a roughness parameter for refractions (for scattering of the rays
    within an object)

    With this, one can create a translucent material with a smooth surface and
    with a milky look.

    The final refraction roughness has to be calculated using the surface
    roughness and the refraction roughness because those two are correlated
    for refractions. If a ray hits a rough surface of a translucent material,
    it is scattered while entering the surface. Then it is scattered further
    within the object. The calculation I'm using is the following:

    RefrRoughnessFinal = 1.0 - (1.0 - Roughness) * (1.0 - RefrRoughness)

commit 50ea5e3e34
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue Jun 7 10:24:50 2016 +0200

    Disney BSDF is now supporting CUDA

commit 10974cc826
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 31 11:18:07 2016 +0200

    Added parameters IOR and Transparency for refractions

    With this, the Disney BRDF/BSSRDF is extended by the BTDF part.

commit 218202c090
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon May 30 15:08:18 2016 +0200

    Added an additional normal for the clearcoat

    With this normal one can simulate a thin layer of clearcoat by applying a
    smoother normal map than the original to this input

commit dd139ead7e
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon May 30 12:40:56 2016 +0200

    Switched to the improved subsurface scattering from Christensen and
    Burley

commit 11160fa4e1
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon May 30 10:16:30 2016 +0200

    Added Disney Sheen shader as a preparation to get to a BSSRDF

commit cee4fe0cc9
Merge: 4f955d0 6b5bab6
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon May 30 09:08:09 2016 +0200

    Merge branch 'cycles_disney_brdf' of git.blender.org:blender into cycles_disney_brdf

    Conflicts:
    	intern/cycles/kernel/closure/bsdf_disney_clearcoat.h
    	intern/cycles/kernel/closure/bsdf_disney_diffuse.h
    	intern/cycles/kernel/closure/bsdf_disney_specular.h
    	intern/cycles/kernel/closure/bsdf_util.h
    	intern/cycles/kernel/osl/CMakeLists.txt
    	intern/cycles/kernel/osl/bsdf_disney_clearcoat.cpp
    	intern/cycles/kernel/osl/bsdf_disney_diffuse.cpp
    	intern/cycles/kernel/osl/bsdf_disney_specular.cpp
    	intern/cycles/kernel/osl/osl_closures.h
    	intern/cycles/kernel/shaders/node_disney_bsdf.osl
    	intern/cycles/render/nodes.cpp
    	intern/cycles/render/nodes.h

commit 4f955d0523
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 24 16:38:23 2016 +0200

    SVM and OSL are both working for the simple version of the Disney BRDF

commit 1f5c41874b
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 24 09:58:50 2016 +0200

    Disney node can be used without SVM and started to cleanup the OSL implementation

    There is still some wrong behavior for SVM for the Schlick Fresnel part at the
    specular and clearcoat

commit d4b814e930
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 18 10:22:29 2016 +0200

    Switched from a parameter struct for Disney parameters to ShaderClosure params

commit b86a1f5ba5
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 18 10:19:57 2016 +0200

    Added additional variables for storing parameters in the ShaderClosure struct

commit 585b886236
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 17 12:03:17 2016 +0200

    added output parameter to the DisneyBsdfNode

    That has been forgotten after removing the inheritance of BsdfNode

commit f91a286398
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 17 10:40:48 2016 +0200

    removed BsdfNode class inheritance for DisneyBsdfNode

    That's due to a naming difference. The Disney BSDF uses the name 'Base Color'
    while the BsdfNode had a 'Color' input. That caused a text message to be
    printed while rendering.

commit 30da91c9c5
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 4 16:08:10 2016 +0200

    disney implementation cleaned

commit 30d41da0f0
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 4 13:23:07 2016 +0200

    added the disney brdf as a shader node

commit 1f099fce24
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 3 16:54:49 2016 +0200

    added clearcoat implementation

commit 00a1378b98
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Apr 29 22:56:49 2016 +0200

    disney diffuse und specular implemented

commit 6baa7a7eb7
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Apr 18 15:21:32 2016 +0200

    disney diffuse is working correctly

commit d8fa169bf3
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Apr 18 08:41:53 2016 +0200

    added vessel for disney diffuse shader

commit 6b5bab6cec
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 18 10:22:29 2016 +0200

    Switched from a parameter struct for Disney parameters to ShaderClosure params

commit f6499c2676
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 18 10:19:57 2016 +0200

    Added additional variables for storing parameters in the ShaderClosure struct

commit 7100640b65
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 17 12:03:17 2016 +0200

    added output parameter to the DisneyBsdfNode

    That has been forgotten after removing the inheritance of BsdfNode

commit 419ee54411
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 17 10:40:48 2016 +0200

    removed BsdfNode class inheritance for DisneyBsdfNode

    That's due to a naming difference. The Disney BSDF uses the name 'Base Color'
    while the BsdfNode had a 'Color' input. That caused a text message to be
    printed while rendering.

commit 6006f91e87
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 4 16:08:10 2016 +0200

    disney implementation cleaned

commit 0ed0895914
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Wed May 4 13:23:07 2016 +0200

    added the disney brdf as a shader node

commit 0630b742d7
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Tue May 3 16:54:49 2016 +0200

    added clearcoat implementation

commit 9f3d39744b
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Fri Apr 29 22:56:49 2016 +0200

    disney diffuse und specular implemented

commit 9b26206376
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Apr 18 15:21:32 2016 +0200

    disney diffuse is working correctly

commit 4711a3927d
Author: Pascal Schoen <pascal_schoen@gmx.net>
Date:   Mon Apr 18 08:41:53 2016 +0200

    added vessel for disney diffuse shader

Differential Revision: https://developer.blender.org/D2313
2017-04-18 11:43:09 +02:00
0579eaae1f Cycles: Make all #include statements relative to cycles source directory
The idea is to make include statements more explicit and obvious where the
file is coming from, additionally reducing chance of wrong header being
picked up.

For example, it was not obvious whether bvh.h was refferring to builder
or traversal, whenter node.h is a generic graph node or a shader node
and cases like that.

Surely this might look obvious for the active developers, but after some
time of not touching the code it becomes less obvious where file is coming
from.

This was briefly mentioned in T50824 and seems @brecht is fine with such
explicitness, but need to agree with all active developers before committing
this.

Please note that this patch is lacking changes related on GPU/OpenCL
support. This will be solved if/when we all agree this is a good idea to move
forward.

Reviewers: brecht, lukasstockner97, maiself, nirved, dingto, juicyfruit, swerner

Reviewed By: lukasstockner97, maiself, nirved, dingto

Subscribers: brecht

Differential Revision: https://developer.blender.org/D2586
2017-03-29 13:41:11 +02:00
cc78690be3 Cycles: Forgot this in previous commit 2017-02-27 12:54:35 +01:00
238db604c5 Cycles: Add more logs about what's going on in shader optimization 2017-02-27 12:38:24 +01:00
845ba1a6fb Cycles: Experiment with replacing Sharp Glossy with GGX when Filter Glossy is used
The idea is to make it simpler to remove noise from scenes when some prop uses
Sharp glossy closure and causes noise in certain cases. Previously Sharp Glossy
was not affected by Filter Glossy at all, which was quite confusing.

Here is a file which demonstrates the issue: {F417797}

After applying the patch all the noise from the scene is gone.

This change also solves fireflies reported in T50700.

Reviewers: brecht, lukasstockner97

Differential Revision: https://developer.blender.org/D2416
2017-02-27 12:33:59 +01:00
ced20b74e5 Fix T50032: Wrong render result when same image is used with and without alpha 2017-01-25 14:02:59 +01:00
d6cf28c5e1 Cycles: Expose diffuse and glossy depth to Light Path node
Was a bit confusing to have transparent and translucent depth
exposed but no diffuse or glossy.

Reviewers: brecht

Subscribers: eyecandy

Differential Revision: https://developer.blender.org/D2399
2017-01-19 15:09:58 +01:00
4b69b6d316 Cycles :Cleanup, indentation 2016-12-06 15:37:29 +01:00
def365e252 Fix T50100: Cycles SeparateRGBNode Red socket defined wrong
Spotted by David (bocs), thanks!
2016-11-23 11:33:09 +01:00
b2974d7ab7 Cycles: Add smoothing option to the Brick Texture
This option allows to create a smoother transition between Bricks and Mortar - 0 applies no smoothing, and 1 smooths across the whole mortar width.
Mainly useful for displacement textures.

The new default value for the smoothing option is 0.1 to give some smoothing that helps with antialiasing, but existing nodes are loaded with smoothing 0 to preserve compatibility.

Reviewers: sergey, dingto, juicyfruit, brecht

Reviewed By: brecht

Subscribers: Blendify, nutel

Differential Revision: https://developer.blender.org/D2230
2016-10-30 02:16:22 +02:00