<function name="UpdateScreenEffectTexture" parent="render" type="libraryfunc"> <description>Copies the entire screen to the screen effect texture, which can be acquired via <page>render.GetScreenEffectTexture</page>. This function is mainly intended to be used in <page>GM:RenderScreenspaceEffects</page></description> <realm>Client</realm> <args> <arg name="textureIndex" type="number" default="0">Texture index to update?⤶ <validate></validate>⤶ </arg>⤶ <arg name="textureIndex" type="number" default="0">Texture index to update. Max index is 3, but engine only creates the first two for you.</arg>⤶ </args> </function>