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Also make it to return truth when everything is good and
false otherwise.
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Increasing the samplig dimensions like this is not optimal, I'm looking
into some deeper changes to reuse the random number and change the RR
probabilities, but this should fix the bug for now.
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We revert to the malloc/realloc and manually manage the upload.
There seems to be a performance penalty from using glMapBuffer on some
hardware, prefering way is glBufferData(NULL) with glBufferSubData.
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We cannot have duplicates so unordered_set is better suited for this case.
Removing batches is now constant time on average instead of linear.
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- Upload the data to the GPU directly when creating the element buffer in
GWN_indexbuf_build_in_place().
- Convert data in place when squeezing the indices and removing the need
for another allocation.
- GWN_indexbuf_build_in_place() can be used with already used element
buffers and reupload their data without changing vbo id (keeping vaos
up to date).
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We now alloc a vbo id on creation and let OpenGL manage its memory directly.
We use glMapBuffer to get this memory location.
This enables us to reuse and modify any vertex buffer directly without
destroying it with its associated Batches.
This commit does not really improve performance but will let us implement
more optimizations in the future.
We can also resize the buffer even if this can be slow if we need to keep
the existing data.
The addition of the usage hint makes dynamic buffers not a special case
anymore, simplifying things a bit.
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Original patch by Guillaume, modifications by Brecht.
Differential Revision: https://developer.blender.org/D3102
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Unity itself is deprecated, but the API is also supported by KDE and the GNOME Dock extension,
which means that it will be useful for a wide variety of distributions.
To get a progress bar, the system must have a blender.desktop file and libunity installed.
The need for libunity is annoying, but the only alternative would be to integrate a DBus library...
Reviewers: campbellbarton, brecht
Differential Revision: https://developer.blender.org/D3106
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Use batchs to store the entire buffer of loops before drawing.
These batchs can be stored in the mesh draw cache later.
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Last argument must be a pointer to list of int terminated by a value of 0.
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Even if they are for safety they are not free to use !
On my system (Mesa + AMD Vega GPU) calling:
glBindVertexArray(1);
glDrawArrays(GL_TRIANGLES, 0, 3);
glBindVertexArray(0);
in a loop, shows the same overhead as a full vao switching (which is more
or less 10 times slower than just calling glDrawArrays)
Moreover, now that we use OpenGL 3.3 binding a VAO is REQUIRED to issue a
drawcall so it is garanted to be overwritten before the next drawcall.
Problem can only happen if someone draws directly with opengl commands.
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Drawing ranges via glDrawArrays is already supported and should not need
a manual offset in the VAO like glDrawArraysInstanced or glDrawElements.
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This allows to draw multiple primitive of the type
GWN_PRIM_LINE_STRIP
GWN_PRIM_LINE_LOOP
GWN_PRIM_TRI_STRIP
GWN_PRIM_TRI_FAN
GWN_PRIM_LINE_STRIP_ADJ
with only one drawcall. This should speed up some areas that are really
sensitive to drawcall counts : UV drawing, Hair drawing...
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changes.
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This was already done for the Principled BSDF to be compatible with typical
baked roughness maps in PBR workflows.
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Meshes without vertex normals were not handled correctly.
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This save a little memory and copying in the kernel by storing only a 4x3
matrix instead of a 4x4 matrix. We already did this in a few places, and
those don't need to be special exceptions anymore now.
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This is in preparation of making Transform affine only, and also gives us
a little extra type safety so we don't accidentally treat it as a regular
4x4 matrix.
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This is in preparation of making Transform affine only.
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The purpose of the previous code refactoring is to make the code more readable,
but combined with this change benchmarks also render about 2-3% faster with an
NVIDIA Titan Xp.
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Original patch by Stefan with modifications by Brecht.
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Original patch by Stefan with modifications by Brecht.
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Original patch by Stefan with modifications by Brecht.
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The draw manager now just set the number of active clip planes. It's now up to the engine to specify the plane equations as uniform/ubo/constant.
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This is an issue with which value to trust: fps vs. tbr. They both cam be
somewhat broken. Currently the idea is:
- If file was saved with FFmpeg AND we are decoding with FFmpeg we trust tbr.
- If we are decoding with Libav we use fps (there does not seem to be tbr in
Libav, unless i'm missing something).
- All other cases we use fps.
Seems to work all good for files from T53857, T54148 and T51153. Ideally we
would need to collect some amount of regression files to make further tweaks
more scientific.
Reviewers: mont29
Reviewed By: mont29
Differential Revision: https://developer.blender.org/D3083
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