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and also rename some related functions
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This removes the need of custom attribs for instancing.
Instancing works fully with dynamic batches & Gwn_VertFormat now.
This is in prevision of the VAO manager patch.
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Was due to the fact that the instances don't have a "static" obmat that can be referenced to use as a uniform.
Solution : precompute the full matrix for each bone and pass it as instance data. (theses are copied into a buffer and can be discarded right away)
Note: this could be optimized further and make only one drawcall (shgroup) to draw all bone instance of one type (vs. one call per armature).
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Boolean uniform needs to be 4bytes long for opengl.
Use "int" for every bool you want to pass as a uniform.
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The RenderResult struct still has a listbase of RenderLayer, but that's ok
since this is strictly for rendering.
* Subversion bump (to 2.80.2)
* DNA low level doversion (renames) - only for .blend created since 2.80 started
Note: We can't use DNA_struct_elem_find or get file version in init_structDNA,
so we are manually iterating over the array of the SDNA elements instead.
Note 2: This doversion change with renames can be reverted in a few months. But
so far it's required for 2.8 files created between October 2016 and now.
Reviewers: campbellbarton, sergey
Differential Revision: https://developer.blender.org/D2927
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Differential Revision: D2914
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Use consistent prefix for gawain API names as well as
some abbreviations to avoid over-long names, see: D2678
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Mainly adding 'wire' suffix to wire/distance drawing func and shader.
Also, match wire vertex shader behavior with solid one regarding
head/tail only drawing (i.e. alwas expect head bone mat, never tail one,
and assume that if a radius is negative, then we only draw on the other
end of the bone).
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Envelope bones are now pretty much identical to old drawing code.
Note that currently new DwM drawing code does not seem to care about
wire/solid drawing modes at all, guess this is still TODO... For now we
hence just get both wire and solid for envelope bones, this can be
refined later.
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This is not complete, it does not implement 3D solid drawing of
envelope bones. 2D wire is hence always drawn for now.
Some notes:
I did not try to implement the 'capsule' approach suggested by @fclem, because:
1. I spent enough time on this already, and finally got something working.
2. I managed to get rid of geometry shader completely.
3. Current approach allows us to use same shader for
distance outline and envelope wire.
It's working fine, except for one glitch - superpositions of envelope
outlines do not work as expected, not sure what's wrong here, tried to
disable zbuff, enable GL_BLEND, no luck so far...
I think we need our own 'background' drawpass to get them working (also
to avoid them drawing over the wire lines).
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Changing states didn't properly reset between shading groups
causing the GL state to be wrong based on draw order.
States are now only set when changed.
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Looks like name-space collision.
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Without this assigning `gl_PointSize = sizeVertex`
made vertices too small.
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Draws a blue center circle for library objects.
As with regular drawing, this uses a hard-coded color.
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Move the grid drawing to the Object mode engine and implement a new infinite grid.
Everything is done but it needs better parameters to be intuitive.
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All engines are now called by the draw manager. Engines are separate entities that cannot interfer with each others.
Also separated draw_mode_pass.c into the mode engines.
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