Instance material FX Composer 2 extension
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Extension information |
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This article is part of the COLLADA extensions directory |
Adding to the extensions directory |
Vertex Remapper
In addition to standard collada stream binding, FX Composer 2.0 allows finer control of this binding at the component level. This information is stored in an extra at the material instance level (instance_material).
<bind_vertex_input_remap> Attributes | Description |
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shader_semantic | The semantic of the shader to bind the stream to |
shader_component | The component of the shader semantic to bind to |
input_semantic | The input stream semantic to feed to the shader |
input_component | The component of the specified input stream to feed to the shader |
input_set | The input set of the stream |
Example
<instance_geometry url="#LOD3spShape-lib" sid="InstanceGeometry1" name="LOD3spShape"> <bind_material> <technique_common> <instance_material symbol="DuckMaterial" target="#Material"> <extra type="input_remap"> <technique profile="NV_vertex_remapping"> <bind_vertex_input_remap shader_semantic="TEXCOORD" shader_component="W" input_semantic="TEXCOORD" input_component="W" input_set="0"/> <bind_vertex_input_remap shader_semantic="TEXCOORD" shader_component="Y" input_semantic="TANGENT" input_component="X" input_set="0"/> <bind_vertex_input_remap shader_semantic="TEXCOORD" shader_component="Z" input_semantic="TEXCOORD" input_component="Y" input_set="0"/> <bind_vertex_input_remap shader_semantic="TEXCOORD" shader_component="X" input_semantic="BITANGENT" input_component="Z" input_set="0"/> </technique> </extra> </instance_material> </technique_common> </bind_material> </instance_geometry>
Scene Bindings
FX Composer 2.0 allows binding of lights, cameras and node properties to material instances. The internal mechanism automatically binds scene item parameters such as light position, color, direction, transformation to material parameters. To store these bindings in Collada files, FX Composer 2.0 uses an extra at the material instance level (instance_material).
<bind_object> Attributes | Description |
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object | The name of the binding connection at the material level. Binding connections are defined in shader parameter annotations |
target | The target node |
sid | The sid of the instance object to bind to |
Example
<instance_material symbol="SphereMaterial" target="#Material"> <extra type="bind_object"> <technique profile="NV_bind_object"> <bind_object object="diffuselight" target="#Node1" sid="FXLightInstance"/> </technique> </extra> </instance_material>