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Goal is to make them more modular, to allow more variants (variable
single-color, thickness, ...) to be added without having to
copy-and-change-one-line of whole chain of shaders.
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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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Actually it's done by the Draw Manager, so other engines can use it.
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Currently only uses the simple shader.
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Vertex/weight paint now work with core profile, resolves T51380.
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This implements weight rendering with the draw manager, with all drawing
options (Shading, wire, face masking, vertex masking).
This is part of T51208
Reviewers: campbellbarton
Subscribers: dfelinto
Differential Revision: https://developer.blender.org/D2654
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This is actually nearly same code as 2D version, maybe we can
deduplicate that later?
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Same fundamental problem as fonts -- there is no longer GL_ALPHA format.
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See gpu_shader.c for the main changes.
EXT_geometry_shader4 brought this feature to GL versions < 3.2, but now it's just cluttering up our code.
Soon all platforms will be on version 3.3 so we won't even have to check support at runtime!
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Added new shader for clipping, also cleaned up rotation manipulator
drawing code a bit.
This code should be replaced by new transform manipulators soon, just
keeping this working in the meanwhile.
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Particle system (not edit mode)
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Renamed existing getter/setter that only FX shaders use. We could convert FX code to use the richer new interface or leave it as is.
Removed unused GPUShader fields. ShaderInterface tracks the same information.
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We don't want to clutter gpu_shader.c with engine specific code
Added face's center dot
Simplified loose vert shader
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Updated shader names and code that uses them.
All of these shaders produce round points that are anti-aliased and blended against the background.
These were initially named SMOOTH because they replace glEnable(GL_POINT_SMOOTH). But SMOOTH in shader-land refers to vertex attribute interpolation (like glShadeModel(GL_SMOOTH)).
Using SMOOTH to mean two things is confusing, so we now use AA to mean "the point is anti-aliased".
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Based on the previous overlay shader from merwin.
This shader takes care of clipped vertex cases and do all edit mode face info in one pass (except face centers).
As the shading is done one the triangle itself the visual can't go beyond the surface of the mesh. That leads to half displayed edges on the outline of the mesh.
This problem can be fixed by a second pass.
This is work in progress.
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D2376 by @ianwill, part of T49043
review by @merwin
Box select, circle select, etc. Introducing the dashed-line shader! See D2376 for more info.
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new shader to draw an image with one isolated channel
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- Added runtime display matrices to EditBone and bPoseChannel
- Added Object space instance vertex shader and modified the simple lighting shader accordingly
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Reviewed By: merwin
Differential Revision: https://developer.blender.org/D2512
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Now we can draw keyframe markers as point sprites, with fewer draw calls and state changes.
Based on the builtin shader for round points with anti-aliased outline. This one is more pointy.
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ui_draw_but_COLORBAND
Introduced a new checker shader to be used mostly on transparent areas.
OpenGL immediate mode: interface_draw.c (cont)
ui_draw_but_UNITVEC
Introduced a new shader to be used for simple lighting.
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Initial work by Clément Foucault with contributions from Dalai Felinto
(mainly per-collection engine settings logic, and depsgraph iterator placeholder).
This makes Blender require OpenGL 3.3. Which means Intel graphic card
and OSX will break. Disable CLAY_ENGINE in CMake in those cases.
This is a prototype render engine intended to help the design of real
render engines. This is mainly an engine with enphasis in matcap and
ambient occlusion.
Implemented Features
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* Clay Render Engine, following the new API, to be used as reference for
future engines
* A more complete Matcap customization with more options
* Per-Collection render engine settings
* New Ground Truth AO - not enabled
Missing Features
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* Finish object edit mode
- Fix shaders to use new matrix
- Fix artifacts when edge does off screen
- Fix depth issue
- Selection sillhouette
- Mesh wires
- Use mesh normals (for higher quality matcap)
- Non-Mesh objects drawing
- Widget drawing
- Performance issues
* Finish mesh edit mode
- Derived-Mesh-less edit mode API (mesh_rende.c)
* General edit mode
- Per-collection edit mode settings
* General engines
- Per-collection engine settings
(they are their, but they still need to be flushed by depsgraph, and
used by the drawing code)
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This does not address stapling shader in 2.8, though the solution can be
similar (own shader, not polutting interlace shader).
part of T49043
Reviewers: merwin
Differential Revision: https://developer.blender.org/D2440
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As our library of built-in shaders grows, it's important to create, access, and discard them efficiently.
Lookup via GPU_shader_get_builtin is now constant time instead of linear (# of built-in shaders). This is called very often with our new immediate mode.
Creation and discard are unified.
Adding a new shader requires fewer steps.
365 lines shorter :D
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D2311 by @ianwill
This is the radial control that appears when we change the size of a brush in sculpt and vertex and texture painting modes, by pressing "f".
Also includes a new built-in shader that can be useful in other places.
Part of T49043
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As seen at #bcon16. These were produced quickly and probably need further work.
SIMPLE variant draws triangle mesh edges. Based on this research:
http://www2.imm.dtu.dk/pubdb/views/edoc_download.php/4884/pdf/imm4884.pdf
http://developer.download.nvidia.com/SDK/10/direct3d/Source/SolidWireframe/Doc/SolidWireframe.pdf
Non-SIMPLE variant can adjust thickness per edge. This can be used to draw only some edges, or accentuate some edges. Given the right inputs this is a general n-gon perimeter shader.
Part of T49165
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This is yet another debug option that allows to render an arbitrary
simulation field by using a color ramp to inspect its voxel values.
Note that when using this, fire rendering is turned off.
Reviewers: plasmasolutions, gottfried
Differential Revision: https://developer.blender.org/D1733
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- rename image shaders to describe exactly what they do
- rename inputs to match other built-in shaders
- set & use active texture unit
- no need to enable/disable textures with GLSL
- pull vertex format setup out of loops
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Smooth round point with outline (uniform color) and fill (varying color).
Updated shader naming scheme: a shader that doesn't deal with color does not have to say "no color". Vertex shaders do not have to say "uniform color" since their frag counterpart actually has the uniform. Each name should describe what that shader *does*, not what it *doesn't do*.
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Solid color with an optional outline.
size (diameter) and outlineWidth are in pixels.
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GPU_SHADER_2D_POINT_VARYING_SIZE_VARYING_COLOR
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No new GLSL shaders were needed! Just combined existing vertex & fragment shaders in new ways.
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Added a built-in shader for points that vary both size and color.
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