Merge pull request #75517 from BastiaanOlij/expose_render_target

doc/classes/RenderingServer.xml

@@ -3225,6 +3225,13 @@
 			<description>
 			</description>
 		</method>
+		<method name="viewport_get_render_target" qualifiers="const">
+			<return type="RID" />
+			<param index="0" name="viewport" type="RID" />
+			<description>
+				Returns the render target for the viewport.
+			</description>
+		</method>
 		<method name="viewport_get_texture" qualifiers="const">
 			<return type="RID" />
 			<param index="0" name="viewport" type="RID" />

servers/rendering/renderer_viewport.cpp

@@ -962,6 +962,13 @@ void RendererViewport::viewport_set_update_mode(RID p_viewport, RS::ViewportUpda
 	viewport->update_mode = p_mode;
 }
 
+RID RendererViewport::viewport_get_render_target(RID p_viewport) const {
+	const Viewport *viewport = viewport_owner.get_or_null(p_viewport);
+	ERR_FAIL_COND_V(!viewport, RID());
+
+	return viewport->render_target;
+}
+
 RID RendererViewport::viewport_get_texture(RID p_viewport) const {
 	const Viewport *viewport = viewport_owner.get_or_null(p_viewport);
 	ERR_FAIL_COND_V(!viewport, RID());

servers/rendering/renderer_viewport.h

@@ -231,6 +231,7 @@ public:
 
 	void viewport_set_clear_mode(RID p_viewport, RS::ViewportClearMode p_clear_mode);
 
+	RID viewport_get_render_target(RID p_viewport) const;
 	RID viewport_get_texture(RID p_viewport) const;
 	RID viewport_get_occluder_debug_texture(RID p_viewport) const;
 

servers/rendering/rendering_server_default.h

@@ -606,6 +606,7 @@ public:
 
 	FUNC2(viewport_set_update_mode, RID, ViewportUpdateMode)
 
+	FUNC1RC(RID, viewport_get_render_target, RID)
 	FUNC1RC(RID, viewport_get_texture, RID)
 
 	FUNC2(viewport_set_disable_2d, RID, bool)

servers/rendering_server.cpp

@@ -2198,6 +2198,7 @@ void RenderingServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("viewport_set_texture_mipmap_bias", "viewport", "mipmap_bias"), &RenderingServer::viewport_set_texture_mipmap_bias);
 	ClassDB::bind_method(D_METHOD("viewport_set_update_mode", "viewport", "update_mode"), &RenderingServer::viewport_set_update_mode);
 	ClassDB::bind_method(D_METHOD("viewport_set_clear_mode", "viewport", "clear_mode"), &RenderingServer::viewport_set_clear_mode);
+	ClassDB::bind_method(D_METHOD("viewport_get_render_target", "viewport"), &RenderingServer::viewport_get_render_target);
 	ClassDB::bind_method(D_METHOD("viewport_get_texture", "viewport"), &RenderingServer::viewport_get_texture);
 	ClassDB::bind_method(D_METHOD("viewport_set_disable_3d", "viewport", "disable"), &RenderingServer::viewport_set_disable_3d);
 	ClassDB::bind_method(D_METHOD("viewport_set_disable_2d", "viewport", "disable"), &RenderingServer::viewport_set_disable_2d);

servers/rendering_server.h

@@ -837,6 +837,7 @@ public:
 
 	virtual void viewport_set_clear_mode(RID p_viewport, ViewportClearMode p_clear_mode) = 0;
 
+	virtual RID viewport_get_render_target(RID p_viewport) const = 0;
 	virtual RID viewport_get_texture(RID p_viewport) const = 0;
 
 	enum ViewportEnvironmentMode {