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<?xml version="1.0" encoding="UTF-8" ?>
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<class name= "MultiMesh" inherits= "Resource" category= "Core" version= "3.0.4" >
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<brief_description >
Provides high performance mesh instancing.
</brief_description>
<description >
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.
For this case a MultiMesh becomes very useful, as it can draw thousands of instances with little API overhead.
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>
<tutorials >
</tutorials>
<demos >
</demos>
<methods >
<method name= "get_aabb" qualifiers= "const" >
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<return type= "AABB" >
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</return>
<description >
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Return the visibility AABB.
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</description>
</method>
<method name= "get_instance_color" qualifiers= "const" >
<return type= "Color" >
</return>
<argument index= "0" name= "instance" type= "int" >
</argument>
<description >
Get the color of a specific instance.
</description>
</method>
<method name= "get_instance_transform" qualifiers= "const" >
<return type= "Transform" >
</return>
<argument index= "0" name= "instance" type= "int" >
</argument>
<description >
Return the transform of a specific instance.
</description>
</method>
<method name= "set_instance_color" >
<return type= "void" >
</return>
<argument index= "0" name= "instance" type= "int" >
</argument>
<argument index= "1" name= "color" type= "Color" >
</argument>
<description >
Set the color of a specific instance.
</description>
</method>
<method name= "set_instance_transform" >
<return type= "void" >
</return>
<argument index= "0" name= "instance" type= "int" >
</argument>
<argument index= "1" name= "transform" type= "Transform" >
</argument>
<description >
Set the transform for a specific instance.
</description>
</method>
</methods>
<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>
</members>
<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>
</constants>
</class>