A few changes to make this consistent with other modifier panels:
- Title case for UI labels
- Use property split (and therefore decorators)
- Declare sublayout variables after getting modifier info
This was meant to be part of rB9ce950daabbf, but the change dropped from
the set at some point in the process of updating and committing.
Sorry for the noise.
This makes the following changes to the name of the two
geometry nodes subvision nodes:
- `Subdivision Surface` -> `Subdivide Smooth`
- `Subdivision Surface Simple` -> `Subdivide`
Most of the benefit is that the names are shorter, but it also better
mirrors the naming of operations in edit mode, and phrases the names
more like actions. This was discussed with the geometry nodes team.
When you have many distinct objects, in an Eevee render then the shadow caster gets exponentially slower as the number of (distinct) objects increase.
This is because of the way that frontbuffer->bbox (EEVEE_BoundBox array) and the associated frontbuffer->update bitmap are resized.
Currently the resizing is done by reserving space for SH_CASTER_ALLOC_CHUNK (32) objects at a time.
When the number of objects is large, then the MEM_reallocN() gets progressively slower because it must memcpy the entire bbox/bitmap data to the new memory chunk.
And there will be a lot of *memcpy* operations for a large scene.
(Obviously there are a significant number of memory allocations/deallocations too - though this would be linear performance.)
I've switched to doubling the frontbuffer->alloc_count (buffer capacity) instead of adding SH_CASTER_ALLOC_CHUNK (32). As I understand this is the only way to eliminate exponential slowdown. Just increasing the size of SH_CASTER_ALLOC_CHUNK would still result in exponential slowdown eventually.
In other changes, the "+ 1" in this expression is not necessary.
if (id + 1 >= frontbuffer->alloc_count)
The buffer is 0-based. So when the buffer is initially allocated then id values from bbox[0] to bbox[31] are valid. Hence when frontbuffer->count == frontbuffer->alloc_count, is when the resizing should be triggered.
As it stands the "+ 1" results in resizing the buffer, when there is still capacity for one more object in the buffer.
I've changed the initial buffer allocation to use MEM_mallocN() instead of MEM_callocN(). The difference is that malloc() doesn't memset buffer (with zeros) when allocated. I've checked the code where new bbox records are created, and it does not rely on the buffer being initialised with zeros.
Anyway, isn't calloc() safer than using malloc()? Well no, it's actually the opposite in this case. Every time the buffer size is increased, it is done using realloc(), and this does not zero-out the uniniitialised portion of the buffer. So the code would break if it was modified to assume that the buffer contains zeros. Hence I believe initialising the buffer using calloc() could be misleading to a new developer.
Won't this result in increased memory usage? Yes, if you have millions of objects in your scene, then you are potentially using up-to twice the memory for the shadow caster. (However if you have millions of objects in your scene you're probably finding the Eevee render times a slow.)
Note that once the render gets going the frontbuffer bbox/bitmap will be shrunk to a multiple of SH_CASTER_ALLOC_CHUNK (32), therefore releasing the overallocation of memory.
As observed in Visual Studio - this appears to be prior to peak memory usage anyway.
Note this shrinking is executed in EEVEE_shadows_update() - during the first render sample pass. If necessary you could consider shrinking the buffer immediately after the EEVEE_shadows_caster_register() has done it's work. (Note however it appears you would need to add that function call is multiple places.)
Anyway as per the bug report I raised, I observed a 5% increase in peak-memory. And I'm unclear whether this difference in memory is due to me running the debug build. (It could be that there is no difference because of the shrinking.)
I couldn't figure out how the shadow caster backbuffer works. I see that EEVEE_shadows_init() has an explicit command to swap the front/back buffers. However this is done only when the buffers are first initialised and there is nothing in there yet. In my testing, the backbuffer->count was always zero, EEVEE_shadows_update() never did anything with the backbuffer.
Finally this problem is most evident when using Geometry Nodes or a Particle System to instantiate many objects. Objects created through say the array modifier do not cause any issues because it is considered one object by the shadow caster.
Reviewed By: #eevee_viewport, fclem
Differential Revision: https://developer.blender.org/D10631
This commit refactors the point distribute node to skip realizing
the instances created by the point instance node or the collection
and object info nodes. Realizing instances is not necessary here
because it copies all the mesh data and and interpolates all
attributes from the instances when this operation does not
need to modify the input geometry at all.
In the tree leaves test file this patch improves the performance of
the node by about 14%. That's not very much, the gain is likely larger
for more complicated input instances with more attributes (especially
attributes on different domains, where interpolation would be necessary
to join all of the instances). Another possible performance improvement
would be to parallelize the code in this node where possible.
The point distribution code unfortunately gets quite a bit more
complicated because it has to handle the complexity of having many
inputs instead of just one.
Note that this commit changes the randomness of the distribution
in some cases, as if the seed input had changed.
Differential Revision: https://developer.blender.org/D10596
Splits up `tree_element_id.cc`/`tree_element_id.hh`.
If we move all ID types into this one file, it will become rather big. Smaller
files are probably easier to work with. We could still keep small classes like
`TreeElementIDLibrary` in the general file, don't mind really, but this creates
separate files for that too.
These files can contain more than just the "base" tree element types. E.g. the
class for the view-layer base element can also contain the class for the
view-layer elements. Otherwise we'd end up with like >50 files for the
individual types, most of them very small.
So just give the files a general name and put the related classes in there.
Continuation of work in 2e221de4ce, 249e4df110 and 3a907e7425.
Adds new tree-element classes for the scene-ID, scene collections, scene
objects, and the view layers base.
There is some more temporary stuff in here, which can be removed once we're
further along with the porting. Noted that in comments.
Currently the implementations specific to each geometry type are in
the same file. This makes it difficult to tell which code is generic
for all component types and which is specific to a certain type.
The two files, `attribute_access.cc`, and `geometry_set.cc` are
also getting quite long.
This commit splits up the implementation for every geometry component,
and adds an internal header file for the common parts of the attribute
access code. This was discussed with Jacques Lucke.
The actual sample count is rounded up to a multiple of 4 because we
sample 4 horizons directions.
Changing this setting forces the shader to recompile (because using a
GPU_constant).
This just bypass the occlusion computation if there is no occlusion
data. This avoids weird looking occlusion due to the screen space
geometric normal reconstruction.
The sampling is now optimum with every samples being at least one pixel
appart. Also use a squared repartition to improve the sampling near the
center.
This also removes the thickness heuristic since it seems to remove
a lot of details and bias the AO too much.
This is a major rewrite that improves the screen space raytracing
a little bit.
This also decouple ray preparation from raytracing to be reuse in other
part of the code.
This changes a few things:
- Reflections have lower grazing angle failure
- Reflections have less self intersection issues
- Contact shadows are now fully opaque (faster)
Unrelated but some self intersection / incorrect bad rays are caused by
the ray reconstruction technique used by the SSR. This is not fixed by
this commit but I added a TODO.
This removes the need for per mipmap scalling factor and trilinear interpolation
issues. We pad the texture so that all mipmaps have pixels in the next mip.
This simplifies the downsampling shader too.
This also change the SSR radiance buffer as well in the same fashion.
This was reported as opening alembic caches ignoring the
'use_relative_paths' preference, but this operator just did not have
this setting. Fortunately, adding this is just a simple switch.
Maniphest Tasks: T86063
Differential Revision: https://developer.blender.org/D10568
This adds the initial boilerplate code that is required to introduce
the new spreadsheet editor. The editor is still hidden from the ui.
It can be made visible by undoing the change in `rna_screen.c`.
This patch does not contain any business logic for the spreadsheet editor.
Differential Revision: https://developer.blender.org/D10645
Ref T86279.
Add operator `FILE_OT_view_selected` to the file browser (and thus also
to the asset browser) that scrolls selected files into view.
This includes the active file, even though it is not selected. In
certain cases the active file can loose its selected state (clicking
next to it, or refreshing the asset browser), but then it's still shown
in the right-hand sidebar. Because of this, I found it important to take
it into account when scrolling.
This also includes a change to the keymaps:
- Blender default: {key NUMPAD_PERIOD} is removed from the "reload"
operator, and assigned to the new "view selected files" operator. The
reload operator was already doubly bound, and now {key R} is the only
remaining hotkey for it.
- Industry compatible: {key F} is assigned to the new "view selected
files" operator. This is consistent with the other "view selected"
operators in other editors.
Reviewed By: Severin
Differential Revision: https://developer.blender.org/D10583
The Tool stores desired dimensions as `scale` and thus had to half the
scale again in `make_prim_init()` because by default all primitives are
created at a size of 2 in blender.
This worked, but:
- [1] it logged something like size=2, scale=2,2,2 for a 2x2x2 cube
[which does not sound right, it should be size=2 scale=1,1,1]
- [2] it had to make an exception for the case scale is exactly 1x1x1
[this happens when the property is not set specifically, e.g. adding
primitives from the menu]
-- this exception led to double sized primitives being created when the
tool asked for exact dimensions of 1x1x1
Now - instead of compensating in `make_prim_init()` - do this earlier in
the tool itself, see `view3d_interactive_add_modal`, this fixes the bug
and now also correctly logs size=2 scale 0.5,0.5,0.5 for a 1x1x1 cube.
Maniphest Tasks: T86347
Differential Revision: https://developer.blender.org/D10632
projectors
Make this clear in property UI descriptions and deactivate aspect &
scale fields if no camera projectors are present.
ref T86268
Maniphest Tasks: T86268
Differential Revision: https://developer.blender.org/D10634
This adds support for creating a `BlendFile` (internally called `Main`),
which is limited to a context.
Temporary data can now be created which can then use
`.libraries.load()` the same as with `bpy.data`.
To prevent errors caused by mixing the temporary ID's with data in
`bpy.data` they are tagged as temporary so they can't be assigned
to properties, however they can be passed as arguments to functions.
Reviewed By: mont29, sybren
Ref D10612
The handle of a drawing callback can be removed within the drawing function itself.
This causes `var = (type)(((Link *)(var))->next` to read an invalid memory value in C.
It looks like we never generated correct icon previews for images with
float_rects (non-8bit-images). Images from the report were 16bit pngs.
In this case, `icon_preview_startjob` would return early (it only
checked if the ImBuf `rect` was NULL -- which is the case if it has a
`rect_float` instead). This is not neccessary since `icon_copy_rect` is
perfectly capable of taking float rects.
Now correct the check and only return early if both `rect` & `rect_float`
are NULL.
note: this will not refresh icon previews from existing files
automatically. For this, use File > Data Previews > Clear Data-Block
Previews.
Maniphest Tasks: T86210
Differential Revision: https://developer.blender.org/D10601
Caused by {rB85421c4fab02}.
Above commit treated `SOCK_RGBA` and `SOCK_STRING` the same in
`std_node_socket_draw`.
That would turn a RGBA button into a text button (for attribute search),
leading to trouble.
Note these were just treated the same prior to above commit because both
were doing the layout split.
Now just give RGBA sockets their own case.
Maniphest Tasks: T86373
Differential Revision: https://developer.blender.org/D10646
This reverts commit 7a34bd7c28.
Broke windows build. Can apparently fix with /Zc:preprocessor flag
for windows but need a Windows dev to make that fix.
Since {rB7a6b46aac56b}, particle systems were named "ParticleSettings"
by default, same as particle settings themselves. These are not the same
thing and their names should reflect that.
Issue came up in T86366.
Now name them "ParticleSystem" by default, name uniqueness is preserved
for both system and settings.
Maniphest Tasks: T86366
Differential Revision: https://developer.blender.org/D10641
But this time the root cause. Writing undo files is done in a separate
thread. This patch moved the updating of the matte_id when the user
actually changes the matte.
The commit rB6f63417b500d that made exact boolean work on meshes
with holes (like Suzanne) unfortunately dramatically slowed things
down on other non-manifold meshes that don't have holes and didn't
need the per-triangle insideness test.
This adds a hole_tolerant parameter, false by default, that the user
can enable to get good results on non-manifold meshes with holes.
Using false for this parameter speeds up the time from 90 seconds
to 10 seconds on an example with 1.2M triangles.
The Exact boolean used in the cell fracture addon incorrectly
kept some outside faces: due to some raycasts going into open
eye socket then out of the head, leading to one ray direction
(out of 8) saying the face was inside the head. The current
code allowed 1 of 8 rays only as "inside" to accommodate the
case of a plane used in boolean to bisect. But this cell fracture
case needs more confidence of being inside. So changed the
test for intersection to require at least 3 of 8 rays to be inside.
Maybe the number of rays to indicate insideness should be exposed
as an option, to allow user tuning according to the degree of
"non-volumeness" of the arguments, but will try at least for now
to magically guess the right value of the rays-inside threshold.
Note: all of this only for the case where the arguments are not
all PWN (approx: manifold). The all-PWN case doesn't use raycast.
