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This allow to use int uniforms that are not references. Convenient for ids.
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This uniforms can be used to have a unique id for each drawcall of a shgrp.
This only works for standard shgroups and is an exception for the outline
drawing.
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Blender allows this.
The Cube in the file in the report would always disappear with the non camera view.
The clip_end was too small.
The correction here is only on the assert.
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And Cleanup.
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Orthographic frustum was incorrect.
There was double transformation.
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Although somewhat less micro efficient, I decided to separate the `viewinv` matrix to calculate the world position separately.
This makes it easier to understand the code.
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draw_frustum_boundbox_calc does not work properly it seems in this case.
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usage.
The problem was that textures were assigned to different slots on different draw
calls, which caused shader specialization/patching by the driver. So the shader
would be compiled over and over until all possible assignments were used.
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frustum boundbox
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This is in order to not mix it with the incomming buffer textures.
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Previous approach was not clear enough and caused problems.
UBOs were taking slots and not release them after a shading group even
if this UBO was only for this Shading Group (notably the nodetree ubo,
since we now share the same GPUShader for identical trees).
So I choose to have a better defined approach:
- Standard texture and ubo calls are assured to be valid for the shgrp
they are called from.
- (new) Persistent texture and ubo calls are assured to be valid accross
shgrps unless the shader changes.
The standards calls are still valids for the next shgrp but are not assured
to be so if this new shgrp binds a new texture.
This enables some optimisations by not adding redundant texture and ubo
binds.
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Use the same logic than textures. Also reset bindings only on shader changes.
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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 leads to less lookups to the GWNShaderInterface and less uniform upload.
We still keep a legacy path so that Builtin uniforms can still work. We might restrict this path to Builtin shader only in the future.
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This way engines can do preemptive culling by themselves.
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This was triggering the BLI_assert(fac >= 0.0f);.
Clamp fac to ensure correct value for release builds.
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Just invert the frustum planes in this case.
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Frustum
The idea is to separate the most common case from symmetrical frustum. And to make a simple but efficient calculation.
The new radius is usually 98% the size of the radius size of the asymmetric solution.
Thanks to @fclem for reviewing the patch on IRC
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Instead of creating a new instancing shading group without attrib, we now have instancing calls. The benefits is that they can be culled.
They can be used in conjuction with the standard and generate calls but shader must support it (which is generally not the case).
We store a pointer to the actual count so that the number can be tweaked between redraw.
This will makes multi layer rendering more efficient.
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Error in eeae50fc1c8, thanks @mano-wii for spotting
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Selection code relies on being able to set the depth functions
however passes have their own depth settings.
Add DRW_state_lock to ignore passes settings for particular flags.
This fixes occlusion queries cycling through objects under the cursor.
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This is very efficient and add a pretty low overhead (0.1ms of drawing time for 10K objects passing through all tests, on my i3-4100M).
The like the rest of the DRWCallState, test is "cached" until the view matrices changes.
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This enables caching the matrices and reducing redraw time of the same object which is particulary important for eevee.
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Was caused by GPU_SELECT_LOAD_IF_PICKSEL_LIST not iterating at all if shgroup->instance_count == 0.
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Refactor include:
- Removal of DRWInterface. (was useless)
- Split DRWCallHeader into a new struct DRWCallState that will be reused in the future.
- Use BLI_link_utils for APPEND/PREPEND.
- Creation of the new DRWManager struct type. This will enable us to create more than one manager in the future.
- Removal of some dead code.
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