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88 lines
3.1 KiB
XML
88 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="MultiMesh" inherits="Resource" category="Core" version="3.1">
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<brief_description>
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Provides high performance mesh instancing.
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</brief_description>
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<description>
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MultiMesh provides low level mesh instancing. If the amount of [Mesh] instances needed goes from hundreds to thousands (and most need to be visible at close proximity) creating such a large amount of [MeshInstance] nodes may affect performance by using too much CPU or video memory.
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For this case a MultiMesh becomes very useful, as it can draw thousands of instances with little API overhead.
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As a drawback, if the instances are too far away of each other, performance may be reduced as every single instance will always rendered (they are spatially indexed as one, for the whole object).
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Since instances may have any behavior, the AABB used for visibility must be provided by the user.
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</description>
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<tutorials>
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</tutorials>
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<demos>
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</demos>
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<methods>
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<method name="get_aabb" qualifiers="const">
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<return type="AABB">
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</return>
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<description>
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Return the visibility AABB.
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</description>
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</method>
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<method name="get_instance_color" qualifiers="const">
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<return type="Color">
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</return>
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<argument index="0" name="instance" type="int">
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</argument>
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<description>
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Get the color of a specific instance.
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</description>
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</method>
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<method name="get_instance_transform" qualifiers="const">
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<return type="Transform">
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</return>
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<argument index="0" name="instance" type="int">
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</argument>
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<description>
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Return the transform of a specific instance.
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</description>
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</method>
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<method name="set_instance_color">
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<return type="void">
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</return>
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<argument index="0" name="instance" type="int">
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</argument>
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<argument index="1" name="color" type="Color">
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</argument>
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<description>
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Set the color of a specific instance.
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</description>
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</method>
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<method name="set_instance_transform">
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<return type="void">
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</return>
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<argument index="0" name="instance" type="int">
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</argument>
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<argument index="1" name="transform" type="Transform">
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</argument>
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<description>
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Set the transform for a specific instance.
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</description>
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</method>
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</methods>
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<members>
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<member name="color_format" type="int" setter="set_color_format" getter="get_color_format" enum="MultiMesh.ColorFormat">
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</member>
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<member name="instance_count" type="int" setter="set_instance_count" getter="get_instance_count">
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</member>
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<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
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</member>
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<member name="transform_format" type="int" setter="set_transform_format" getter="get_transform_format" enum="MultiMesh.TransformFormat">
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</member>
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</members>
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<constants>
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<constant name="TRANSFORM_2D" value="0" enum="TransformFormat">
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</constant>
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<constant name="TRANSFORM_3D" value="1" enum="TransformFormat">
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</constant>
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<constant name="COLOR_NONE" value="0" enum="ColorFormat">
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</constant>
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<constant name="COLOR_8BIT" value="1" enum="ColorFormat">
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</constant>
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<constant name="COLOR_FLOAT" value="2" enum="ColorFormat">
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</constant>
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</constants>
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</class>
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