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Canvas item hierarchical culling

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Adds optional hierarchical culling to the 2D rendering (within VisualServer).

Each canvas item maintains a bound in local space of the item itself and all child / grandchild items. This allows branches to be culled at once when they don't intersect a viewport.
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lawnjelly
2022-11-09 15:53:23 +00:00
parent 15c729e1d9
commit b777a9e5f9
19 changed files with 858 additions and 20 deletions
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4
doc/classes/ProjectSettings.xml
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@@ -1437,6 +1437,10 @@
[b]Experimental.[/b] If set to on, uses the [code]GL_STREAM_DRAW[/code] flag for legacy buffer uploads. If off, uses the [code]GL_DYNAMIC_DRAW[/code] flag.
[b]Note:[/b] Use with care. You are advised to leave this as default for exports. A non-default setting that works better on your machine may adversely affect performance for end users.
</member>
<member name="rendering/2d/options/culling_mode" type="int" setter="" getter="" default="1">
The culling mode determines the method used for rejecting canvas items that are outside a viewport. The visual result should be identical, but some modes may be faster for a particular project.
You can either cull items individually ([code]Item mode[/code]), or use hierarchical culling ([code]Node mode[/code]) which has a little more housekeeping but can increase performance by culling large numbers of items at once.
</member>
<member name="rendering/2d/options/ninepatch_mode" type="int" setter="" getter="" default="1">
Choose between fixed mode where corner scalings are preserved matching the artwork, and scaling mode.
Not available in GLES3 when [member rendering/batching/options/use_batching] is off.