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2020-03-11Eevee: internal support for arbitrary number of volume gridsBrecht Van Lommel
This has no user visible impact yet since smoke volumes only support a fixed set of attributes, but will become important with the new volume object. For GPU shader compilation, volume grids are now handled separately from image textures. They are somewhere between a vertex attribute and an image texture, basically an attribute that is stored as a texture. Differential Revision: https://developer.blender.org/D6952
2020-03-11Smoke: put density/color in separate textures, fixes for workbench shaderBrecht Van Lommel
This is more in line with standard grids and means we don't have to make many special exceptions in the upcoming change for arbitrary number of volume grids support in Eevee. The workbench shader was also changed to fix bugs where squared density was used, and the smoke color would affect the density so that black smoke would be invisible. This can change the look of smoke in workbench significantly. When using the color grid when smoke has a constant color, the color grid will no longer be premultiplied by the density. If the color is constant we want to be able not to store a grid at all. This breaks one test for Cycles and Eevee, but the setup in that test using a color without density does not make sense. It suffers from artifacts since the unpremultiplied color grid by itself will not have smooth boundaries. Differential Revision: https://developer.blender.org/D6951
2020-03-06Nodes: Support storing socket link limits in bNodeSocketTypeJacques Lucke
Currently the link limit of sockets is stored in bNodeSocket->limit. This allows for a lot of flexibility, but is also very redundant. In every case I've had to deal with so far, it would have "more correct" to set the link limit per socket type and not per socket. I did not enforce this constraint yet, because the link limit is exposed in the Python API, which I did not want to break here. In the future it might even make sense to only support only three kinds of link limits: a) no links, b) at most one link, c) an arbitrary number links links. The other link limits usually don't work well with tools (e.g. which link should be removed when a new one is connected?) and is not used in practice. However, that is for another day. Eventually, I would like to get rid of bNodeSocket->limit completely and replace it either with fixed link limits or a callback in bNodeSocketType. This patch consists of three parts: **1. Support defining link limit in socket type** This introduces a new `nodeSocketLinkLimit` function that serves as an indirection to hide where the link limit of a socket is defined. **2. Define link limits for builtin sockets on socket type** Data sockets: one input, many outputs Virtual sockets: one input, one output Undefined sockets: many inputs, many outputs (to avoid that links are removed when the type of the socket is not known) **3. Remove `bNodeSocketTemplate->limit`** This wasn't used anymore after the second commit. Removing it simplifies socket definitions in hundreds of places and removes a lot of redundancy. Differential Revision: https://developer.blender.org/D7038 Reviewers: brecht
2020-03-02Shading: Add invert option to Vector Rotate NodeCharlie Jolly
Checkbox to invert rotation angle, suggested by @simonthommes Differential Revision: https://developer.blender.org/D6932
2020-02-27Cleanup: more refactoring of GPU material attributes and texturesBrecht Van Lommel
This further separates requested attributes and textures from the actual node graph, that can be retained after the graph has been compiled and freed. It makes it easier to add volume grids as a native concept, which sits somewhere between an attribute and a texture. It also adds explicit link types for UDIM tile mapping, rather than relying on fairly hidden logic.
2020-02-24Fix T74169: Vector Rotate Node - Euler modes not working as intendedCharlie Jolly
Remove additional Euler modes for the time being, not working as intended, will add back if there is a need.
2020-02-19EEVEE: Color Ramp Ease OptimisationCharlie Jolly
This patch provides an optimisation for Ease (Smoothstep) setting in the color ramp node. This optimisation exists already for Constant and Linear modes. Reviewed By: fclem Differential Revision: https://developer.blender.org/D6880
2020-02-17Cycles: Vector Rotate Node using Axis and Angle methodCharlie Jolly
This node provides the ability to rotate a vector around a `center` point using either `Axis Angle` , `Single Axis` or `Euler` methods. Reviewed By: #cycles, brecht Differential Revision: https://developer.blender.org/D3789
2020-02-17Shading: add direction modes and phase offset to wave texture nodeBartosz Moniewski
* Direction mode X, Y and Z to align with axes rather than diagonal or spherical as previously. X is the new default, existing files will use diagonal or spherical for compatibility. * Phase offset to offset the wave along its direction, for purposes like animation and distortion. https://developer.blender.org/D6382
2020-02-15Fix crash in some Eevee shader node setups after vector math node changesBrecht Van Lommel
2020-02-15Shading: Extend Vector Math Node with Sin, Cos, Tan and Wrap functionsCharlie Jolly
This adds some extra functions recently added to the float Maths Node. Not all functions have been ported over in this patch. Also: + Tidy up menu + Change node color to match other vector nodes, this helps distinguish vector and float nodes in the tree + Move shared OSL functions to new header node_math.h Reviewed By: brecht Differential Revision: https://developer.blender.org/D6713
2020-02-11Nodes: Add dynamic label support for Math NodesCharlie Jolly
Reviewed By: brecht Differential Revision: https://developer.blender.org/D6375
2020-02-10Cleanup/refactor: Rename `BKE_library` files to `BKE_lib`.Bastien Montagne
Note that `BKE_library.h`/`library.c` were renamed to `BKE_lib_id.h`/`lib_id.c` to avoid having a too generic name here. Part of T72604.
2020-02-05T73589: Code Quality: Renaming on BKE_material.hAntonio Vazquez
Old Name New Name ========= ========= init_def_material BKE_materials_init BKE_material_gpencil_default_free BKE_materials_exit test_object_materials BKE_object_materials_test test_all_objects_materials BKE_objects_materials_test_all give_matarar BKE_object_material_array give_totcolp BKE_object_material_num give_current_material_p BKE_object_material_get_p give_current_material BKE_object_material_get assign_material BKE_object_material_assign assign_matarar BKE_object_material_array_assign give_matarar_id BKE_id_material_array give_totcolp_id BKE_id_material_num assign_material_id BKE_id_material_assign clear_matcopybuf BKE_material_copybuf_clear free_matcopybuf BKE_material_copybuf_free copy_matcopybuf BKE_material_copybuf_copy paste_matcopybuf BKE_material_copybuf_paste BKE_material_init_gpencil_settings BKE_gpencil_material_attr_init BKE_material_add_gpencil BKE_gpencil_material_add BKE_material_gpencil_get BKE_gpencil_material BKE_material_gpencil_default_get BKE_gpencil_material_default BKE_material_gpencil_settings_get BKE_gpencil_material_settings
2020-02-04Merge branch 'blender-v2.82-release'Pablo Dobarro
2020-02-04Fix wrong default value for Lacunarity in Musgrave textureBartosz Moniewski
Lacunarity parameter determines scaling of subsequent octaves in fractal noises. For example, Noise node have this scaling hardcoded to 2.0. Each octave have twice bigger scale than previous one, resulting in finer details. By design fractal noises that generate octaves with same seed should not have Lacunarity set to 1.0, since then it just stacks up identical noises. Differential Revision: https://developer.blender.org/D6742
2020-01-28Merge branch 'blender-v2.82-release'Campbell Barton
2020-01-27Fix T67552 EEVEE: Vector Curves node clamps maximum input value at 1.0Clément Foucault
2020-01-27Shading: Add color output to White Noise nodeCharlie Jolly
Hash input values to a color. Differential Revision: https://developer.blender.org/D6672
2020-01-23Fix T71374 EEVEE: Fix Node group socket not converting inputs as in CyclesClément Foucault
Pretty straight Forward. Create a temp node during sockets expansion to force the conversion to float.
2020-01-16Fix T70766 EEVEE: Performance drop with node tree in 2.81Clément Foucault
2020-01-16Fix T73133: UDIM texture count in Eevee is limited by OpenGLLukas Stockner
Based on @fclem's suggestion in D6421, this commit implements support for storing all tiles of a UDIM texture in a single 2D array texture on the GPU. Previously, Eevee was binding one OpenGL texture per tile, quickly running into hardware limits with nontrivial UDIM texture sets. Workbench meanwhile had no UDIM support at all, as reusing the per-tile approach would require splitting the mesh by tile as well as texture. With this commit, both Workbench as well as Eevee now support huge numbers of tiles, with the eventual limits being GPU memory and ultimately GL_MAX_ARRAY_TEXTURE_LAYERS, which tends to be in the 1000s on modern GPUs. Initially my plan was to have one array texture per unique size, but managing the different textures and keeping everything consistent ended up being way too complex. Therefore, we now use a simpler version that allocates a texture that is large enough to fit the largest tile and then packs all tiles into as many layers as necessary. As a result, each UDIM texture only binds two textures (one for the actual images, one for metadata) regardless of how many tiles are used. Note that this rolls back per-tile GPUTextures, meaning that we again have per-Image GPUTextures like we did before the original UDIM commit, but now with four instead of two types. Reviewed By: fclem Differential Revision: https://developer.blender.org/D6456
2019-12-12Add support for tiled images and the UDIM naming schemeLukas Stockner
This patch contains the work that I did during my week at the Code Quest - adding support for tiled images to Blender. With this patch, images now contain a list of tiles. By default, this just contains one tile, but if the source type is set to Tiled, the user can add additional tiles. When acquiring an ImBuf, the tile to be loaded is specified in the ImageUser. Therefore, code that is not yet aware of tiles will just access the default tile as usual. The filenames of the additional tiles are derived from the original filename according to the UDIM naming scheme - the filename contains an index that is calculated as (1001 + 10*<y coordinate of the tile> + <x coordinate of the tile>), where the x coordinate never goes above 9. Internally, the various tiles are stored in a cache just like sequences. When acquired for the first time, the code will try to load the corresponding file from disk. Alternatively, a new operator can be used to initialize the tile similar to the New Image operator. The following features are supported so far: - Automatic detection and loading of all tiles when opening the first tile (1001) - Saving all tiles - Adding and removing tiles - Filling tiles with generated images - Drawing all tiles in the Image Editor - Viewing a tiled grid even if no image is selected - Rendering tiled images in Eevee - Rendering tiled images in Cycles (in SVM mode) - Automatically skipping loading of unused tiles in Cycles - 2D texture painting (also across tiles) - 3D texture painting (also across tiles, only limitation: individual faces can not cross tile borders) - Assigning custom labels to individual tiles (drawn in the Image Editor instead of the ID) - Different resolutions between tiles There still are some missing features that will be added later (see T72390): - Workbench engine support - Packing/Unpacking support - Baking support - Cycles OSL support - many other Blender features that rely on images Thanks to Brecht for the review and to all who tested the intermediate versions! Differential Revision: https://developer.blender.org/D3509
2019-12-10Cycles: support for custom shader AOVsLukas Stockner
Custom render passes are added in the Shader AOVs panel in the view layer settings, with a name and data type. In shader nodes, an AOV Output node is then used to output either a value or color to the pass. Arbitrary names can be used for these passes, as long as they don't conflict with built-in passes that are enabled. The AOV Output node can be used in both material and world shader nodes. Implemented by Lukas, with tweaks by Brecht. Differential Revision: https://developer.blender.org/D4837
2019-12-08Fix T71480: crash with Eevee image texture node and clippingBrecht Van Lommel
2019-12-08Fix T72269: crash with Eevee and normal maps after recent math node changesBrecht Van Lommel
Reusing math node functions for normal map node caused problems.
2019-12-07Fix ShaderNodeCustomGroup.copy method being called too oftenBrecht Van Lommel
This is only supposed to happen when copying nodes that are part of the user editable database, not temporary copies for the dependency graph. The LIB_ID_COPY_LOCALIZE test was wrong because it is a combination of multiple bitflags as pointed out by Bastien, and was actually redundant anyway since LIB_ID_CREATE_NO_MAIN is part of it.
2019-12-07Shader Nodes: Add Interpolation modes to Map Range nodeCharlie Jolly
Modes: Linear interpolation (default), stepped linear, smoothstep and smootherstep. This also includes an additional option for the **Clamp node** to switch between **Min Max** (default) and **Range** mode. This was needed to allow clamping when **To Max** is less than **To Min**. Reviewed By: JacquesLucke, brecht Differential Revision: https://developer.blender.org/D5827
2019-12-07Maths Node: Additional functionsCharlie Jolly
When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-11-27Curve: CurveMapping Extend OptionJeroen Bakker
Extend options are currently stored per curve. This was not clearly communicated to the user and they expected this to be a setting per CurveMapping. This change will move the option from `Curve` to `CurveMapping`. In order to support this the API had to be changed. BPY: CurveMap.evaluate is also moved to CurveMapping.evaluate what breaks Python API. Cycles has been updated but other add-ons have not. After release of 2.81 we can merge this to master and adapt the add-ons. Reviewed By: campbellbarton Differential Revision: https://developer.blender.org/D6169
2019-11-27Cycles: Add Random Per Island attribute.OmarSquircleArt
The Random Per Island attribute is a random float associated with each connected component (island) of the mesh. It is particularly useful when artists want to add variations to meshes composed of separate units. Like tree leaves created using particle systems, wood planks created using array modifiers, or abstract splines created using AN. Reviewed By: Sergey Sharybin, Jacques Lucke Differential Revision: https://developer.blender.org/D6154
2019-11-08Cleanup: clang-formatCampbell Barton
2019-11-06Fix: Forward compatibility issue in shader nodesCharlie Jolly
Raised in https://developer.blender.org/rBe5618725fd1e Reviewed By: brecht Differential Revision: https://developer.blender.org/D6102
2019-10-10Fix T70644 EEVEE: Bump issue with geometry node normal coordinateClément Foucault
Was caused by non-normalized coordinates (normals). Note this is not 100% correct as the dFdx functions can be the same for packs of 4 pixels and the derivated value can only be correct for one pixels. This is because smoothed normals are a non-linear function (because of the normalization). The correct fix would be to do the dFdx offset BEFORE any normalization.
2019-10-10Fix T70614 EEVEE: Bump with texture connected to other branches don't workClément Foucault
Was caused by the bump node not being evaluated because the other branch was evaluated before. To fix this, we use fromnode instead of tonode. Also we fix a potential issue with recursiveness because ntree_shader_copy_branch() also use nodeChainIterBackwards() which would reset the iter_flag in the middle of the parent iteration. Use iter_flag as a bitflag for each iteration to fix this.
2019-10-10Fix T70609 EEVEE: Shader using lots of nodegroups are slow to updateClément Foucault
2019-10-07Cleanup: clang-formatCampbell Barton
2019-10-04Fix: Gain socket is not available in ridged multifractal.OmarSquircleArt
The gain socket in the Musgrave node should be available in the ridged multifractal mode. The logic for the availability was incorrect. Reviewers: brecht Differential Revision: https://developer.blender.org/D5989
2019-10-02Fix T70331 Node group passthrough is brokenClément Foucault
2019-10-02Fix T70405: Geometry node not linking manual derivativesPhilipp Oeser
Maniphest Tasks: T70405 Reviewed By: fclem Differential Revision: https://developer.blender.org/D5954
2019-10-01Fix T70325 EEVEE: Performance regression with large nodetreesClément Foucault
This was caused by nodeChainIter which is not linear complexity. Introduce nodeChainIterBackwards to iterate backwards faster.
2019-09-30Cleanup: spellingCampbell Barton
2019-09-28EEVEE: Speedup: Don't request orco layer if not neededClément Foucault
Should speed up eevee mesh update a tiny bit in certain particular cases (deform modifier + (shader using texcoord (but not generated output) OR principled bsdf OR geometry node (except tangent output))).
2019-09-24Fix T68736 EEVEE: Loose subsurface node breaks shaderClément Foucault
2019-09-23ShaderNodeTree: Add flatten function to get rid of nodegroupsClément Foucault
This makes a lot of shader node wiring code less complex. This only add the flatten mechanism (which fixes T69672). ~~Cleanup to remove the complexity in ntree_shader_relink_displacement, ntree_shader_bump_branches and ntree_shader_tag_nodes will be commited separately.~~(already included) The code is only added for shader nodes for now but could be exported to other internal nodetree types in the future. Cleanup: Node Shader Tree: Remove GPUmaterial special nodegroup handling Reviewers: brecht Reviewed By: brecht Maniphest Tasks: T69672 Differential Revision: https://developer.blender.org/D5829
2019-09-19Fix T69971 EEVEE: Bump does not work using a UVMap node as inputClément Foucault
This fixes both the attribute and the uvmap node. Some other nodes are not supported but I think it makes little sense.
2019-09-14Cleanup: use const args, variablesCampbell Barton
2019-09-12Shading: Add Vertex Color node.OmarSquircleArt
This patch adds a new Vertex Color node. The node also returns the alpha of the vertex color layer as an output. Reviewers: brecht Differential Revision: https://developer.blender.org/D5767
2019-09-12Shading: Add More Features To The Voronoi Node.OmarSquircleArt
This patch allows the Voronoi node to operate in 1D, 2D, and 4D space. It also adds a Randomness input to control the randomness of the texture. Additionally, it adds three new modes of operation: - Smooth F1: A smooth version of F1 Voronoi with no discontinuities. - Distance To Edge: Returns the distance to the edges of the cells. - N-Sphere Radius: Returns the radius of the n-sphere inscribed in the cells. In other words, it is half the distance between the closest feature point and the feature point closest to it. And it removes the following three modes of operation: - F3. - F4. - Cracks. The Distance metric is now called Euclidean, and it computes the actual euclidean distance as opposed to the old method of computing the squared euclidean distance. This breaks backward compatibility in many ways, including the base case. Reviewers: brecht, JacquesLucke Differential Revision: https://developer.blender.org/D5743
2019-09-09Shading: Extend Musgrave node to other dimensions.OmarSquircleArt
This patch extends Musgrave noise to operate in 1D, 2D, 3D, and 4D space. The Color output was also removed because it was identical to the Fac output. Reviewed By: brecht Differential Revision: https://developer.blender.org/D5566
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