Someone

<material name="wood" name_minor="hard">

<shader file="shaderdef.xml" /> --alternatively-- <shader> <fragment source="lol.frag" /> <vertex> SOURCE_CODE </vertex> </shader>

<shaderinput> <input name="time> <nativevar name="time /> </input> <input name="specularity> 4.3 </input> </shaderinput>

<physics file="physicsdef.xml" /> --alternatively-- <physics> <friction>1.3</friction> </physics>

<oncollide with="wood.soft"> <nativefunction name="lawl" /> --or-- <script language="python"> ... </script> </oncollide>

</material>