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Use depth buffer to order the uv edges correctly to always draw selected
edges on top.
We still use the double drawing workaround for points to keep the smooth
antialiased display.
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The issue was caused by a bad usage of GPUOffscreen.
The Framebuffer was created using a window framebuffer and used
in a viewport callback when another GPUContext was bound.
This change allows up to 3 framebuffers per GPUOffscreen.
Most common case will be using 2 framebuffers (one for init and
one for drawing) but in the case of more (bad usage) it will just
degrade performance a bit.
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Now texture storage of images is defined by the alpha mode of the image. The
downside of this is that there can be artifacts near alpha edges where pixels
with zero alpha bleed in. It also adds more code complexity since image textures
are no longer all stored the same way.
This changes allows us to keep using sRGB texture formats, which have edge
darkening when stored with premultiplied alpha. Game engines seems to generally
do the same thing, and we want to be compatible with them.
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glDrawArrays is not supposed to be affected by primitive restart
but osx drivers never cease to surprise me.
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This is a mix of solutions rBe60b18d51d58 and rB52af5fa31fbc.
What happened was that when a node of the BVH gets 0 vertices, the batch is untouched and therefore still drawn.
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Failed to build without WITH_LEGACY_OPENGL.
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In the Intel HD 4000 driver a shader has to be deleted in the same context in which it is created.
However, because you can't use a rendering context on different threads, to maintain the multithreaded compilation, the solution was to use the `GL_ARB_get_program_binary` and copy the binary generated for the shader and generate a shader on the main context using that binary.
This solution is limited only to Intel HD 4000 and windows.
Reviewers: fclem
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D5019
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This does add some more register pressure as it passes a new vec3 down
the shading function. But for now we care more about accuracy than
efficiency.
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Emission node was outputing alpha information but is was not
supposed to. Match cycles reference.
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For offscreen rendering a high definition color buffer is needed.
Without it there are banding issues when doing multi-sampling viewport
rendering.
Reviewed By: fclem
Maniphest Tasks: T65287
Differential Revision: https://developer.blender.org/D5009
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Restart index can have been changed in another context and the static
var can get out of sync. A better solution is to set the restart index
when binding the VAO. It also have less perf impact.
Fix T65364 Corrupted mesh display on macOS
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Automated using clang-tidy.
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This seems to be a requirement and remove some errors in
renderdoc.
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This type of indices is not natively supported on modern GPU and
gives warning on some implementation. The memory savings it
provides is also quite minimal and unlikely to be visible on
nowadays hardware.
This remove some uneeded struct members and makes primitive
restart always enabled by default. This can be broken by addons
if they are not careful enough but many other states have this
problem.
Also leverage GL_PRIMITIVE_RESTART_FIXED_INDEX if
ARB_ES3_compatibility is supported. This removes all API calls
to change restart index depending on indices length.
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Passing a const pointer to MEM_freeN/MEM_recallocN lead to
C4090 'function': different 'const' qualifiers
warnings with MSVC
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Declaration and implementation got out of sync leading to warnings.
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This patch fix the issue introduced by recent refactor and fixes
computation when using overscans.
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Rename it to GPU_batch_draw_advanced and use base instance when possible.
Also add GPU_batch_bind to bind the vao independantly of drawing commands.
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This will have multiple benefit.
TODO detail benefits (culling, more explicit, handling of clipping planes)
For now the view usage is wrapped to make changes needed more progressive.
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dimensions is 0.
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Hair normals were not behaving correctly. This corrects their looks and
fix the node shader geometry that was showing the flat normal.
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This is to simplify the usage of SSS.
Now it automatically detect if there is any SSS material in the view and
allocate the needed buffer if any.
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This is normally already calculated so add a version that takes the
inverted matrix.
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The windows compiler use signed int by default for enums so that broke
the bit count I carefully did. Forcing uint fixes it.
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On Windows 10 with a post Februari 2019 Intel driver, the box selection
is not working. It only detects the object centers, but not the drawn
triangles of the basic engine.
Reviewed By: fclem
Maniphest Tasks: T62947
Differential Revision: https://developer.blender.org/D4857
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