Two render-to-texture features are declared in 1_core/proto/enwidgets.c but do not work for mods:

1. Camera → UI: RenderTargetWidget + SetWidgetWorld(w, g_Game.GetWorldEntity(), camera): [result, e.g. "widget stays black"]

2. UI → 3D model: RTTextureWidget + SetGUIWidget(ent, index, w) with $rendertarget in the rvmat: [result, e.g. "texture stays empty"]

Notes:

• The declarations are unchanged in 1.30, and no vanilla script uses them.

• The helper 2_gamelib/entities/rendertarget.c is wrapped in #ifdef GAME_TEMPLATE, so it is not available in DayZ.

• The new PreviewWidget.ApplyToCamera(int) is undocumented and unused.

None

Please enable these in retail, or document what is missing (for example, how to create or assign secondary camera indices). They would allow in-game monitors, security cameras, scopes and PiP, and interactive 3D screens (terminals, keypads) without workarounds.