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This was disabled to fix T41349, however seems that if we don't pass
delegates for muted nodes everything work fine.
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Problem is that setup of stack indices which refer to the same stack
entry can lead to cyclic TexDelegate node pointers, causing an infinite
loop.
Fixing this would take too much time and require recoding large parts of
the texnodes system, which is earmarked for scrapping anyway ... So for
now just disabled muting in texnodes to avoid crashes.
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of the Output Line Style node.
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Style shader node.
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BKE_get_linestyle_from_scene().
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Shader nodes will be used to define materials for stroke rendering, so as to
allow users to interactively configure textures.
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This came up a few times already, most of the time you want a clear white glass, and not a greyish like one. :)
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This allows adding a "fake" sun beam effect, simulating crepuscular rays
from light being scattered in a medium like the atmosphere or deep water.
Such effects can be created also by renderers using volumetric lighting,
but the compositor feature is a lot cheaper and is independent from 3D
rendering. This makes it ideally suited for motion graphics.
The implementation uses am optimized accumulation method for gathering
color values along a line segment. The inner buffer loop uses fixed
offset increments to avoid unnecessary multiplications and avoids
variables by using compile-time specialization (see inline comments
for further details).
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If the active image node contributes to the final material shader
(meaning it's either directly or indirectly connected to an Output Node)
the user will receive an alert about circular dependency.
Similar to what we do for Blender internal the baking will still happen,
but the user will receive the alert which should prevent the image
saving to happen if the result was not intentional.
Core function to check for node output written by Lukas Toenne.
Reviewers: lukastoenne, campbellbarton
Differential Revision: https://developer.blender.org/D673
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The function is to retrieve the active line style ID datablock from a scene and
there is nothing related to bContext.
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trees for localization (previews and viewer evaluation).
This is handled entirely by the compositor already. Doing this during
localization is redundant and risks divergent behavior.
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Issue here is that if there's a texture in the tree, chances are it has
already been set as active texture so groups are never traversed.
Now changed logic so that if a group node is active, its own active
texture takes priority over the parent group active texture.
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* Anisotropic BSDF now supports GGX and Beckmann distributions, Ward has been
removed because other distributions are superior.
* GGX is now the default distribution for all glossy and anisotropic nodes,
since it looks good, has low noise and is fast to evaluate.
* Ashikhmin-Shirley is now available in the Glossy BSDF.
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* Ashikhmin-Shirley anisotropic BSDF was added as closure
* Anisotropic BSDF node now has two distributions
Reviewers: brecht, dingto
Differential Revision: https://developer.blender.org/D549
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This was already possible via the RGB nodes, but that seems weird.
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A bunch of nodes had invalid storage definitions that don't refer to an actual
DNA struct. Ref T40033.
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Reviewed By: dingto, brecht
Differential Revision: https://developer.blender.org/D507
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Paolo Acampora.
Reviewers: brecht, kjym3, #freestyle
Reviewed By: brecht, kjym3
Differential Revision: https://developer.blender.org/D246
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Opted to keep includes if they are used indirectly (even if removing is possible).
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modifiers, nodes)
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extension sockets would create additional extension sockets instead of
simply ignoring them.
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This can for example be useful if you want to manually terminate the path at
some point and use a color other than black.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D454
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defaults.
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complete.
Fixes T37954.
Reviewed By: brecht, dingto
Differential Revision: https://developer.blender.org/D230
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render layer nodes in a pinned tree from different scene.
The way these updates work is a nasty legacy hack:
https://developer.blender.org/diffusion/B/browse/master/source/blender/nodes/composite/node_composite_tree.c$277
This function is called //very frequently// by the get_from_context
method. However, this does not get called for pinned node trees, so
when showing a different scene's compositing nodes in the editor they
may not get updated correctly.
Now moved this update call out of get_from_context so it happens in any
case. Will be called no more frequently than before (on every redraw).
Eventually the depsgraph should handle this more precisely, it's just a
simple ID dependency anyway ...
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transformation.
This was suggested by Christopher Barrett (terrachild). Corner pin is a common feature in compositing.
The corners for the plane warping can be defined by using vector node inputs to allow using perspective plane transformations without having to go via the MovieClip editor tracking data.
Uses the same math as the PlaneTrack node, but without the link to MovieClip and Object.
{F78199}
The code for PlaneTrack operations has been restructured a bit to share it with the CornerPin node.
* PlaneDistortCommonOperation.h/.cpp: Shared generic code for warping images based on 4 plane corners and a perspective matrix generated from these. Contains operation base classes for both the WarpImage and Mask operations.
* PlaneTrackOperation.h/.cpp: Current plane track node operations, based on the common code above. These add pointers to MovieClip and Object which define the track data from wich to read the corners.
* PlaneCornerPinOperation.h/.cpp: New corner pin variant, using explicit input sockets for the plane corners.
One downside of the current compositor design is that there is no concept of invariables (constants) that don't vary over the image space. This has already been an issue for Blur nodes (size input is usually constant except when "variable size" is enabled) and a few others. For the corner pin node it is necessary that the corner input sockets are also invariant. They have to be evaluated for each tile now, otherwise the data is not available. This in turn makes it necessary to make the operation "complex" and request full input buffers, which adds unnecessary overhead.
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compilation.
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Implements a more flexible internal connect function for standard nodes
(compositor, shader, texture). Allow feasible datatype connections by
priority.
The priorities for common datatypes in compositor, shader and texture
nodes are encoded in a simple function. Certain impossible connections
(e.g. color -> cycles shader) are excluded by giving them -1 priority.
Priority overrides link status: If a higher priority input can be found,
this will be used regardless of link status. Link status only comes into
play for inputs with same priority.
Reviewers: brecht
CC: sebastian_k
Differential Revision: https://developer.blender.org/D356
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It would include/exclude shadow depending on the pass being disabled/enabled,
but that should have no influence on the combined render result. Now it always
includes shadow.
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Blender Internal shader nodes.
All nodes now use the `nodestack_get_vec` function to convert whatever
input values are connected to the desired type, instead of using the
stack values directly regardless of what they contain.
Note that this might break old node setups that have been adapted to the
faulty behavior, but as discussed in the bug report the 2.70 version is
the right time to fix this.
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BI.
The shaderfrom setting in the node editor only makes sense for "new"
shading nodes (cycles), otherwise it should be ignored and default to
SNODE_SHADER_OBJECT.
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