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Some of this was "tagged" for removal by Dec 2016.
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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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There are still many places to fix. I'll miss the bright yellow!
This commit also uses the new BLF_default function where possible.
Part of T49043 since we call glColor less often.
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Conflicts:
source/blender/editors/space_action/action_draw.c
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Reported by coverity scan.
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Conflicts:
source/blender/editors/gpencil/drawgpencil.c
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Sometimes it can be useful to be able to keep onion skins visible in the
OpenGL renders and/or when doing animation playback. In particular, there
are two use cases where this is quite useful:
1) For creating a cheap motion-blur effect, especially when the before/after
values are also animated.
2) If you've animated a shot with onion skinning enabled, the poses may end
up looking odd if the ghosts are not shown (as you may have been accounting
for the ghosts when making the compositions).
This option can be found as the small "camera" toggle between the "Use Onion Skinning"
and "Use Custom Colors" options.
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Conflicts:
intern/cycles/blender/CMakeLists.txt
source/blender/editors/gpencil/drawgpencil.c
source/blender/editors/physics/physics_ops.c
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When append a datablock the default brushes were not created and only
were created when draw new strokes. Now the default brushes are created
when draw strokes if necessary.
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Fixes an assert in drawing code.
Might need further work to support variable-thickness strokes (from pressure-sensitive stylus). This all is due for geometry shader overhaul anyway.
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Some strokes are just single dots. Draw these smooth / antialiased.
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lines
This function will be replace by geometry shader, but we need this fix until the shader will be ready. The problem is similar to T49614.
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between stroke points
The problem was the function tried to draw a line with one point only. This fix will be replaced by new geometry shaders, but we need while this change is not ready.
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Before this change, the stroke was filled only after complete the stroke drawing. For artist is better to get a feedback of the area he is filling while drawing, so this commit draws the filling area while drawing.
The triangulation of the stroke is recalculated every time the function is called because using a cache is not useful because the points information is changing all the time while the stroke is being drawing.
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Part of T49043 -- done with this file!
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Part of T49043
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Part of T49043
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Part of T49043
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Want to avoid updating code we no longer use anyway.
Comments for areas to investigate or deadlines for deletion.
also some minor bool cleanup
Part of T49165
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We should revisit this later and use geometry shader to draw one continuous tapered stroke.
Part of T49043
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Single draw call per stroke!
Part of T49043
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and constify some static utility functions
Note: 2D shader will ignore position's z value, but making pos a vec3 lets us unify code in this function.
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Main goal is to get rid of GLU.
Part of T49042, touches on T49043 and T49450
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Transition away from GLU and legacy matrix stack. Using point sprites eliminated the need for most of the matrix math!
Depends on decent support of large aliased points. NVIDIA is good at this, must test limits on AMD & Intel systems.
Still needs proper scaling based on view zoom.
Part of T49042, touches on T49043 and T49450.
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Two new modal operators to create a grease pencil interpolate drawing
for one frame or a complete sequence between two frames. For drawing
the temporary strokes in the viewport, two drawing handlers have been
added to manage 3D and 2D stuff.
Video: https://youtu.be/qxYwO5sSg5Y
The operator shortcuts are Ctrl+E and Ctrl+Shift+E. During the modal
operator, the interpolation can be adjusted using the mouse (moving
left/right) or the wheel mouse.
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This is a good point to change this as grease-pencil-v2 branch was just merged, so I hope merge conflicts with other branches are minimal.
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Improve current Grease Pencil in order to get a better 2D animation tool.
More info in WIKI pages: https://wiki.blender.org/index.php/User:Antoniov
Reviewed By: Severin, aligorith, campbellbarton
Patch by @antoniov, with edits by @Severin.
Differential Revision: https://developer.blender.org/D2115
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The purpose of the patch is to replace deprecated glShadeModel.
To decrease glShadeModel calls I've set GL_SMOOTH by default
Reviewers: merwin, brecht
Reviewed By: brecht
Subscribers: blueprintrandom, Evgeny_Rodygin, AlexKowel, yurikovelenov
Differential Revision: https://developer.blender.org/D1958
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onionskinning in that direction
This is an experimental option that I found would have been useful to have,
when making my earlier anim test. The only contentious point is whether it's
better to use a separate boolean flag (perhaps bound to the labels) instead
of overloading this setting (and describing the usage in the tooltip).
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glitches in some situations
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There is still some instability in how the triangulations are happening,
where the triangle count of the resulting triangulation fluctuates resulting
in weird artifacts sometimes.
To reproduce, try drawing some U-shapes, and keep reloading the file.
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While trying to track down why I still keep getting some random "extra" triangles
showing up when reloading files with fills, I noticed that there's an index mismatch
here that may cause problems in some rare cases:
There are "gps->totpoints" items in tmp_triangles, but there should only be
"gps->tot_triangles" triangles in the gps->triangles array. If for whatever reason
some of the triangles in tmp_triangles are invalid, this could have meant that
while a tmp_triangles candidate was skipped, a corresponding slot for a valid
triangle also got skipped.
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Improve filling for concave shapes using a triangulation of the stroke.
The triangulation information is saved in an internal cache and only is
recalculated if the stroke changes.
The triangulation is not saved in .blend file.
Reviewers: aligorith
Maniphest Tasks: T47102
Differential Revision: https://developer.blender.org/D1705
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* Added a new API function to test if a GPencil layer is visible or not
* Replaced all editability checks with this new "super check"
* Replaced all magic number thresholds for opacity visiblity with a single define
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Each LINES draw call is now responsible for its own line width. No need
to set it back to its 1.0 default after every draw.
This eliminates half our calls to glLineWidth , similar to last week’s
work on glPointSize.
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I put all usage of GL_POINTS under the microscope. Fixed problems &
optimized a couple of spots.
- reduce calls to glPointSize by about 50%
- draw selected & unselected vertices together for UV editor & EditMesh
- draw initial gpencil stroke point the proper size
- a few other smaller fixes
New policy: each GL_POINTS draw call needs to set its desired point
size. This eliminates half our calls to glPointSize (setting it back to
its 1.0 default after every draw).
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This commit merges all the work done in the GPencil_Editing_Stage3 branch
as of ef2aecf2db981b5344e0d14e7f074f1742b0b2f7 into master. For more details
about the changes that this brings, see the WIP release notes:
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.77/GPencil
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Mostly glBlendFunc related.
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- Add blentranslation `BLT_*` module.
- moved & split `BLF_translation.h` into (`BLT_translation.h`, `BLT_lang.h`).
- moved `BLF_*_unifont` functions from `blf_translation.c` to new source file `blf_font_i18n.c`.
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As reported by zeffi, the "show_points" option was not working in master.
It probably broke recently, after some changes meant that the point sizes
weren't geting set prior to drawing these points anymore. Since this was
originally added as a debugging tool (though it is now somewhat redundant
due to the stroke editing functionality, which uses/exposes the same points),
this option wasn't really that important. I have decided to add back a toggle
for this to the UI though, since it can be used for some interesting effects...
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