[SOLVED] RenderToTexture in GUI

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Hello.

How to show in gui some runtime dynamic texture?

Im getting new texture each frame by rendering scene from different angle to a viewport.renderTexture2D(), like this https://developer.unigine.com/en/docs/2.7.3/code/usage/mirrors_viewports_materials/index

gui has WidgetSprite to show images https://developer.unigine.com/en/docs/2.12/api/library/gui/class.widgetsprite

and WidgetSprite have setTexture(path_to_texture) <- why not texture id???

and setImage(img, dynamic) <- do I have to manualy call it each render frame and convert from texture to image?

is there other ways?

thanks

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searching forum i found https://developer.unigine.com/forum/topic/4638-implementation-coherentgt-gui-sample/

and 

sprite->setRender(my_texture);

it works as I need.

 thanks