<function name="SetMaterial" parent="surface" type="libraryfunc"> <description> Sets the material to be used in all upcoming draw operations using the surface library. Not to be confused with <page>render.SetMaterial</page>. See also <page>surface.SetTexture</page>. <warning><page>Global.Material</page> function calls are expensive to be done inside this function or inside rendering context, you should be caching the results of <page>Global.Material</page> calls</warning> <note>When using <page>render.PushRenderTarget</page> or <page>render.SetRenderTarget</page>, `material` should have the `$ignorez` flag set to make it visible. If the material is not used in 3D rendering, it is probably safe to add it with this code:⤶ ```lua⤶ material:SetInt( "$flags", bit.bor( material:GetInt( "$flags" ), 32768 ) )⤶ ```⤶ </note>⤶ </description> <realm>Client and Menu</realm> <args> <arg name="material" type="IMaterial">The material to be used.</arg> </args> </function>