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2018-06-14Cycles: Query XYZ to/from Scene Linear conversion from OCIO instead of ↵Lukas Stockner
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
2018-06-11Fix T55436: crash with point density and shader tweaking.Brecht Van Lommel
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.
2018-05-27Cycles: Add Support for IES files as textures for light strengthLukas Stockner
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
2018-05-24Cycles/Compositor: Add arctan2 operation to the Math nodeLukas Stockner
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
2018-04-29Cycles: Cleanup: Remove double semicolonsLukas Stockner
2018-03-12Cycles: add constant folding to displacement nodes.Brecht Van Lommel
2018-03-10Cycles: switch to squared roughness convention for all nodes.Brecht Van Lommel
This was already done for the Principled BSDF to be compatible with typical baked roughness maps in PBR workflows.
2018-03-10Code refactor: make Transform always affine, dropping last row.Brecht Van Lommel
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.
2018-02-28Code cleanup: refactor Cycles image metadata retrieval to use a struct.Brecht Van Lommel
2018-02-23Cycles: add Principled Volume shader.Brecht Van Lommel
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
2018-02-23Code refactor: improve attribute handling for optional volume attributes.Brecht Van Lommel
A volume shader should be able to request attributes, and still be rendered as homogeneous if no volume attributes are available for the object.
2018-02-22Code cleanup: fix incorrect socket names in hair and particle info nodes.Brecht Van Lommel
2018-02-14Cycles: restore Particle Info Index for now, keep it next to Random.Brecht Van Lommel
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.
2018-02-14Cycles: change Index output of Hair and Particle Info to Random, in 0..1 range.Brecht Van Lommel
These are used for randomization, so it's convenient if the index is already hashed and consistent with the Object Info node.
2018-02-13Cycles: Implement index output for hair nodeSergey Sharybin
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.
2018-02-09Cycles: add random walk subsurface scattering to Principled BSDF.Brecht Van Lommel
Differential Revision: https://developer.blender.org/D3054
2018-02-09Cycles: random walk subsurface scattering.Brecht Van Lommel
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
2018-02-03Cycles: add Vector Displacement node and extend Displacement node.Brecht Van Lommel
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
2018-01-23Cycles: change material output displacement to vector.Brecht Van Lommel
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
2018-01-23Cycles: add Displacement node.Brecht Van Lommel
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
2017-11-08Cycles: add bevel shader, for raytrace based rounded edges.Brecht Van Lommel
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
2017-08-20Code cleanup: deduplicate some bsdf node methods.Brecht Van Lommel
2017-08-20Cycles: support baking normals plugged into BSDFs, averaged with closure weight.Brecht Van Lommel
2017-07-21Fix T52135: Cycles should not keep generated/packed images in memory after ↵Brecht Van Lommel
render.
2017-07-12Cycles: Enable SSS from Principled BSDF only when actually in useMai Lavelle
This gives speed up for the split kernel in scenes using the principled BSDF but without subsurface scattering.
2017-06-21Fix T51849: change Cycles clearcoat gloss to roughness.Brecht Van Lommel
This is compatible with UE4 and more consistent with specular and transmission roughness, even if it deviates from the original Disney BRDF.
2017-05-18Fix T51408: Cycles - Principled BSDF Shader - Transparency is not working as ↵Pascal Schoen
expected Renamed the "Transparency" input of the Principled BSDF to "Transmission" and "Refraction Roughness" to "Transmission Roughness".
2017-04-27Unlimited number of textures for CyclesStefan Werner
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
2017-04-21Cycles: Make it a generic base class for all types of closure nodesSergey Sharybin
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.
2017-04-18Squashed commit of the following:Pascal Schoen
commit 90778901c9ea1e16d5907981e91bceba25ff207d 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 76eebd9379a5dad519ff01cf215fbe3db6de931e Author: Schoen <schoepas@deher1m1598.emea.adsint.biz> Date: Thu Mar 30 15:34:20 2017 +0200 Updated copyright for the new files. commit 013f4a152a3898946ba5c616141c6e44d928ccfd 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 482ec5d1f20ceabc9cbda4838d4ae37d1d673458 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 26e906d162a6a8d67f2ebc8880993fcbab69559e 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 0593b8c51bf7db0ed5ca92ed6f68d0d984dad0dd 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 8c7e11423be640dc44b1807912058480710e51f4 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 17724e9d2dbffb1aaa61401224ecbf2349c1dac3 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 379ba346b0acd1ea779365b940fcd01f5ba1165f Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Tue Jan 24 09:28:56 2017 +0100 Renamed the Disney BSDF to Principled BSDF. commit f80dcb4f34f1dc41841ced5965787fc26ace22a2 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 732db8a57f6d4e5d6f44bbad176c15fd55377f0a 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 0103659f5e705b314cde98b0e4a01c14c55acd5e 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 0aa68f533529c9fd197a3ab0427f9e41a15456b9 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Mon Nov 7 12:04:38 2016 +0100 Resolved inconsistencies in using tabs and spaces commit f5897a9494e352de274b99e7bee971336c0dc386 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 3dfc240e61b3d4d0e7c476989792e4ada869ce91 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 a2dd0c5fafdabe1573299170fb3be98a3e46d17a 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 981737591231a1a5a1c85950950580b65d029505 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 bbc5d9d4527346a74155cf17be21fb02ee3e0779 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 d52d8f2813d64363713f11160a6c725d4cafbcfa 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 8f3d92738532ad867a0a3543c00393626ab8f6ec 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 d93f680db9acaaade0354b34857a3ccaf348557f 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 c708c3e53b323773fc852bdc239bc51e157dcaef Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Mon Oct 24 08:14:10 2016 +0200 Rearranged the inputs of the shader. commit dfbfff9c389074d3e5c1f49dd38a95e9b317eb1f 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 e5a748ced17c8f59e5e73309096adeea3ba95e04 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 75992bebc128c8b44cab4f0d8855603787f57260 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Fri Oct 21 08:50:07 2016 +0200 Code style cleanup commit 4dfcf455f7769752044e051b399fb6a5dfcd0e22 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 243a0e3eb80ef82704d5ea2657384c3a4b9fb497 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 2a5ac509223c838285a00c4c12775567666e7154 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 e1fa8623915407cea942a07fd0a106b04e113c09 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 d0530a8af0e076c0aca4c9a61b0a64cada45ac4d 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 3f4fc826bd9c1f47c694c0f6b2947daf5b524b1a 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 4d3a0032ecea99031979f342bfd5f66ea5a8625a 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 3cd5eb56cf5c9006837f111c8866e4c6e1c2a6fd 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 7cb37d711938e5626651db21f20da50edd96abaf 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 cdd29d06bb86672ed0779eefb8eee95796b8f939 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 02c315aeb0f0d7bb429d4396912e03dbb8a77340 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 5f880293aeeacf269032824248b46d613691a36c 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 630b80e08b6acf83834bc95264af4ccdbbc5f82c Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Fri Sep 2 10:52:13 2016 +0200 Fresnel in the microfacet multiscatter implementation improved commit 0d9f4d7acb2de65d1c98d425cea4bf364795c155 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 9eed34c7d980e1b998df457c4f76021162c80f78 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 ef29aaee1af8074e0228c480d962700e97ea5b36 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 88567af085ac94119b98c95246b6d6f63161bc01 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 cc267e52f20d036a66aeeff127ee1c856f7c651b 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 81f6c06b1f53180bf32a5c11ac1fa64e2b6abf52 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 ece5a08e0d6e51a83c223ea87346134216e5b34e 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 e3aff6849e06853c56da7bd610210dcab70e6070 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 b3ca6d8a2f4f866b323fc2df0a3beff577218c27 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 d68729300ee557e90a8e7e4be6eb8ef98db80fe2 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 cb6e500b12e7bce884d3db19ee138c975c215f2d 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 bfb9cb11b548103369de2a46ce18b4ddf661362c 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 642c0fdad12548c1a2ccbf595bae3a995d3022f7 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 c10b484dcad3412c34455736e9656cd38716bcb0 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 462bba3f97fcc41834e0e20cc806a7958e5106f5 Author: Jens Verwiebe <info@jensverwiebe.de> Date: Thu Jul 21 23:11:59 2016 +0200 Add an undef for sc_next for safety commit 32d348577d69be251aa04110c5f6156cd2645f48 Author: Jens Verwiebe <info@jensverwiebe.de> Date: Thu Jul 21 00:15:48 2016 +0200 Attempt to fix Disney SSS commit dbad91ca6d46f5a4a6f2ba7ed4c811ffa723942f 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 50ea5e3e34394a727e3cceb6203adb48834a9ab7 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Tue Jun 7 10:24:50 2016 +0200 Disney BSDF is now supporting CUDA commit 10974cc826a4bfa8fb3ef59177abf0b0dc441065 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 218202c0905a4ec93ee19850360d1a39966d2c25 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 dd139ead7e04aa87a894ccf3732cfce711258ff1 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 11160fa4e1c32230119d4506e7e9fd3da2ab37f2 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 cee4fe0cc94515ee60d4afa4d4e10c41003f1579 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 4f955d052358206209454decf2c3539e6a21b42f 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 1f5c41874b01ad297eb8a6bad9985296c6c0a6e1 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 d4b814e9304ebb44cc7c291cd83f7b7cdebcd152 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 b86a1f5ba5019c7818153cb70b49f5f7a0bc52a0 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 585b88623695fa07dfca9c9909d6d9184c3519c8 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 f91a28639884cbda7804715b910d64abba0718ef 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 30da91c9c51d8cbc6a7564c7aaa61c9efe2ab654 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Wed May 4 16:08:10 2016 +0200 disney implementation cleaned commit 30d41da0f0352fad29375a395ffcb9cb7891eeb1 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 1f099fce249cb35e949cc629f7cca2167fca881a Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Tue May 3 16:54:49 2016 +0200 added clearcoat implementation commit 00a1378b98e435e9cdbfbac86eb974c19b2a8151 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Fri Apr 29 22:56:49 2016 +0200 disney diffuse und specular implemented commit 6baa7a7eb787638661cddad0c4e7f78bd3a8fa5c Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Mon Apr 18 15:21:32 2016 +0200 disney diffuse is working correctly commit d8fa169bf3caf71c40a124101b33dee6c510188e Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Mon Apr 18 08:41:53 2016 +0200 added vessel for disney diffuse shader commit 6b5bab6cecde153122625cf8dc10e4209ed1eb0f 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 f6499c2676e074a36033627ffc7540107777630d 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 7100640b65c2ff5447a18c01fc4e93594b4f486a 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 419ee5441100a906b4b3fd8373cb768a71bfdfe6 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 6006f91e8730f78df5874f808690d3908db103ab Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Wed May 4 16:08:10 2016 +0200 disney implementation cleaned commit 0ed08959141fc7c5f8c6e37c6552ecb9fcc5749c 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 0630b742d71c658915575a4a71a325094a0fc313 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Tue May 3 16:54:49 2016 +0200 added clearcoat implementation commit 9f3d39744b85619750c79c901f678b8c07fe0ee2 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Fri Apr 29 22:56:49 2016 +0200 disney diffuse und specular implemented commit 9b262063767d6b05a617891c967d887d21bfb177 Author: Pascal Schoen <pascal_schoen@gmx.net> Date: Mon Apr 18 15:21:32 2016 +0200 disney diffuse is working correctly commit 4711a3927dfcadaa1c36de0ba78fc304fac1dc8a 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
2017-03-29Cycles: Make all #include statements relative to cycles source directorySergey Sharybin
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
2017-02-27Cycles: Forgot this in previous commitSergey Sharybin
2017-02-27Cycles: Add more logs about what's going on in shader optimizationSergey Sharybin
2017-02-27Cycles: Experiment with replacing Sharp Glossy with GGX when Filter Glossy ↵Sergey Sharybin
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
2017-01-25Fix T50032: Wrong render result when same image is used with and without alphaSergey Sharybin
2017-01-19Cycles: Expose diffuse and glossy depth to Light Path nodeSergey Sharybin
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
2016-12-06Cycles :Cleanup, indentationSergey Sharybin
2016-11-23Fix T50100: Cycles SeparateRGBNode Red socket defined wrongSergey Sharybin
Spotted by David (bocs), thanks!
2016-10-30Cycles: Add smoothing option to the Brick TextureLukas Stockner
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
2016-10-24Cycles: Cleanup, styleSergey Sharybin
2016-10-01Cycles: implement partial constant folding for exponentiation.Alexander Gavrilov
This is also an important mathematical operation that can be folded if it is known that one argument is a certain constant. For colors the operation is provided as a Gamma node. The SVM Gamma node needs a small fix to make it follow the 0 ^ 0 == 1 rule, same as the Power node, or the Gamma node itself in OSL mode. Reviewers: #cycles Differential Revision: https://developer.blender.org/D2263
2016-09-11Cycles: Fix bump mapping to use object space when used with true displacementMai Lavelle
Bump mapping was happening in world space while displacement happens in object space, causing shading errors when displacement type was used with bump mapping. To fix this the proper transforms are added to bump nodes. This is only done for automatic bump mapping however, to avoid visual changes from other uses of bump mapping. It would be nice to do this for all bump mapping to be consistent but that will have to wait till we can break compatibility. Reviewed By: brecht Differential Revision: https://developer.blender.org/D2191
2016-08-22Fix T49136: full constant Curves with zero Fac input crashes in assert.Alexander Gavrilov
The if branches were reordered when the original patch was committed, which broke the implicit non-NULL guarantee on link. To prevent re-occurrence, add a couple of unit tests.
2016-08-02Cycles: add folding for redundant A to B to A conversions.Alexander Gavrilov
As a result of other folding simplifications it may happen that two type conversion nodes end up directly connected. In some cases it may be possible to then remove both. A realistic case might be an optimized out Mix RGB node used to blend vectors. It seems it's safe to optimize when B is a float3 type (color, vector), and A is float3 or float. Reviewers: #cycles, sergey Reviewed By: #cycles, sergey Subscribers: sergey Differential Revision: https://developer.blender.org/D2134
2016-07-31Cycles: constant fold add/mul type nodes with known 0 and 1 arguments.Alexander Gavrilov
These values often either turn the node into a no-op, or even make it evaluate to 0 no matter what the other input value is, thus allowing deletion of a branch of the node graph that otherwise is not constant. Reviewed By: brecht Differential Revision: https://developer.blender.org/D2085
2016-07-31Cycles: constant folding for RGB/Vector Curves and Color Ramp.Alexander Gavrilov
These are complex nodes, and it's conceivable they may end up constant in some circumstances within node groups, so folding support is useful. Reviewed By: brecht Differential Revision: https://developer.blender.org/D2084
2016-07-29Fix use of uninitialized variable in Cycles, mostly harmless.Brecht Van Lommel
2016-07-27Cycles: Some minor tweaks to emission sharderSergey Sharybin
- Nodification of shader nodes changed default strength from 10 to 1. If that was intentional, IMO should happen as a separate commit. - Fixed indentation.
2016-07-21Fix Cycles OSL script node not working in shader using bump, after node type ↵Brecht Van Lommel
refactoring.
2016-07-18Cycles: add ConstantFolder class for constant folding boilerplate.Alexander Gavrilov
Reviewed By: brecht, sergey Differential Revision: https://developer.blender.org/D2089