Remove viewport_set_disable_environment in favor of viewport_set_environment_mode

This allows us to set a default value inherited by child viewports and have child viewports set the value themselves which is needed for disabling the environment in the editor

doc/classes/RenderingServer.xml

@@ -3245,12 +3245,12 @@
 			<description>
 			</description>
 		</method>
-		<method name="viewport_set_disable_environment">
+		<method name="viewport_set_environment_mode">
 			<return type="void" />
 			<param index="0" name="viewport" type="RID" />
-			<param index="1" name="disabled" type="bool" />
+			<param index="1" name="mode" type="int" enum="RenderingServer.ViewportEnvironmentMode" />
 			<description>
-				If [code]true[/code], rendering of a viewport's environment is disabled.
+				Sets the viewport's environment mode which allows enabling or disabling rendering of 3D environment over 2D canvas. When disabled, 2D will not be affected by the environment. When enabled, 2D will be affected by the environment if the environment background mode is [constant ENV_BG_CANVAS]. The default behaviour is to inherit the setting from the viewport's parent. If the topmost parent is also set to [constant VIEWPORT_ENVIRONMENT_INHERIT], then the behavior will be the same as if it was set to [constant VIEWPORT_ENVIRONMENT_ENABLED].
 			</description>
 		</method>
 		<method name="viewport_set_fsr_sharpness">
@@ -4135,6 +4135,18 @@
 		<constant name="VIEWPORT_CLEAR_ONLY_NEXT_FRAME" value="2" enum="ViewportClearMode">
 			The viewport is cleared once, then the clear mode is set to [constant VIEWPORT_CLEAR_NEVER].
 		</constant>
+		<constant name="VIEWPORT_ENVIRONMENT_DISABLED" value="0" enum="ViewportEnvironmentMode">
+			Disable rendering of 3D environment over 2D canvas.
+		</constant>
+		<constant name="VIEWPORT_ENVIRONMENT_ENABLED" value="1" enum="ViewportEnvironmentMode">
+			Enable rendering of 3D environment over 2D canvas.
+		</constant>
+		<constant name="VIEWPORT_ENVIRONMENT_INHERIT" value="2" enum="ViewportEnvironmentMode">
+			Inherit enable/disable value from parent. If topmost parent is also set to inherit, then this has the same behavior as [constant VIEWPORT_ENVIRONMENT_ENABLED].
+		</constant>
+		<constant name="VIEWPORT_ENVIRONMENT_MAX" value="3" enum="ViewportEnvironmentMode">
+			Max value of [enum ViewportEnvironmentMode] enum.
+		</constant>
 		<constant name="VIEWPORT_SDF_OVERSIZE_100_PERCENT" value="0" enum="ViewportSDFOversize">
 		</constant>
 		<constant name="VIEWPORT_SDF_OVERSIZE_120_PERCENT" value="1" enum="ViewportSDFOversize">

editor/editor_node.cpp

@@ -643,7 +643,7 @@ void EditorNode::_notification(int p_what) {
 			}
 
 			RenderingServer::get_singleton()->viewport_set_disable_2d(get_scene_root()->get_viewport_rid(), true);
-			RenderingServer::get_singleton()->viewport_set_disable_environment(get_viewport()->get_viewport_rid(), true);
+			RenderingServer::get_singleton()->viewport_set_environment_mode(get_viewport()->get_viewport_rid(), RenderingServer::VIEWPORT_ENVIRONMENT_DISABLED);
 
 			feature_profile_manager->notify_changed();
 

editor/plugins/canvas_item_editor_plugin.cpp

@@ -5401,11 +5401,13 @@ void CanvasItemEditorPlugin::make_visible(bool p_visible) {
 		canvas_item_editor->show();
 		canvas_item_editor->set_physics_process(true);
 		RenderingServer::get_singleton()->viewport_set_disable_2d(EditorNode::get_singleton()->get_scene_root()->get_viewport_rid(), false);
+		RenderingServer::get_singleton()->viewport_set_environment_mode(EditorNode::get_singleton()->get_scene_root()->get_viewport_rid(), RS::VIEWPORT_ENVIRONMENT_ENABLED);
 
 	} else {
 		canvas_item_editor->hide();
 		canvas_item_editor->set_physics_process(false);
 		RenderingServer::get_singleton()->viewport_set_disable_2d(EditorNode::get_singleton()->get_scene_root()->get_viewport_rid(), true);
+		RenderingServer::get_singleton()->viewport_set_environment_mode(EditorNode::get_singleton()->get_scene_root()->get_viewport_rid(), RS::VIEWPORT_ENVIRONMENT_DISABLED);
 	}
 }
 

servers/rendering/renderer_viewport.cpp

@@ -236,7 +236,7 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
 		}
 	}
 
-	if (!p_viewport->disable_2d && !p_viewport->disable_environment && RSG::scene->is_scenario(p_viewport->scenario)) {
+	if (!p_viewport->disable_2d && !viewport_is_environment_disabled(p_viewport) && RSG::scene->is_scenario(p_viewport->scenario)) {
 		RID environment = RSG::scene->scenario_get_environment(p_viewport->scenario);
 		if (RSG::scene->is_environment(environment)) {
 			scenario_draw_canvas_bg = RSG::scene->environment_get_background(environment) == RS::ENV_BG_CANVAS;
@@ -992,11 +992,21 @@ void RendererViewport::viewport_set_disable_2d(RID p_viewport, bool p_disable) {
 	viewport->disable_2d = p_disable;
 }
 
-void RendererViewport::viewport_set_disable_environment(RID p_viewport, bool p_disable) {
+void RendererViewport::viewport_set_environment_mode(RID p_viewport, RS::ViewportEnvironmentMode p_mode) {
 	Viewport *viewport = viewport_owner.get_or_null(p_viewport);
 	ERR_FAIL_COND(!viewport);
 
-	viewport->disable_environment = p_disable;
+	viewport->disable_environment = p_mode;
+}
+
+bool RendererViewport::viewport_is_environment_disabled(Viewport *viewport) {
+	ERR_FAIL_COND_V(!viewport, false);
+
+	if (viewport->parent.is_valid() && viewport->disable_environment == RS::VIEWPORT_ENVIRONMENT_INHERIT) {
+		Viewport *parent = viewport_owner.get_or_null(viewport->parent);
+		return viewport_is_environment_disabled(parent);
+	}
+	return viewport->disable_environment == RS::VIEWPORT_ENVIRONMENT_DISABLED;
 }
 
 void RendererViewport::viewport_set_disable_3d(RID p_viewport, bool p_disable) {

servers/rendering/renderer_viewport.h

@@ -85,7 +85,7 @@ public:
 		bool viewport_render_direct_to_screen;
 
 		bool disable_2d = false;
-		bool disable_environment = false;
+		RS::ViewportEnvironmentMode disable_environment = RS::VIEWPORT_ENVIRONMENT_INHERIT;
 		bool disable_3d = false;
 		bool measure_render_time = false;
 
@@ -238,9 +238,11 @@ public:
 	const RendererSceneRender::CameraData *viewport_get_prev_camera_data(RID p_viewport);
 
 	void viewport_set_disable_2d(RID p_viewport, bool p_disable);
-	void viewport_set_disable_environment(RID p_viewport, bool p_disable);
+	void viewport_set_environment_mode(RID p_viewport, RS::ViewportEnvironmentMode p_mode);
 	void viewport_set_disable_3d(RID p_viewport, bool p_disable);
 
+	bool viewport_is_environment_disabled(Viewport *viewport);
+
 	void viewport_attach_camera(RID p_viewport, RID p_camera);
 	void viewport_set_scenario(RID p_viewport, RID p_scenario);
 	void viewport_attach_canvas(RID p_viewport, RID p_canvas);

servers/rendering/rendering_server_default.h

@@ -608,7 +608,7 @@ public:
 	FUNC1RC(RID, viewport_get_texture, RID)
 
 	FUNC2(viewport_set_disable_2d, RID, bool)
-	FUNC2(viewport_set_disable_environment, RID, bool)
+	FUNC2(viewport_set_environment_mode, RID, ViewportEnvironmentMode)
 	FUNC2(viewport_set_disable_3d, RID, bool)
 
 	FUNC2(viewport_set_canvas_cull_mask, RID, uint32_t)

servers/rendering_server.cpp

@@ -2200,7 +2200,7 @@ void RenderingServer::_bind_methods() {
 	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);
-	ClassDB::bind_method(D_METHOD("viewport_set_disable_environment", "viewport", "disabled"), &RenderingServer::viewport_set_disable_environment);
+	ClassDB::bind_method(D_METHOD("viewport_set_environment_mode", "viewport", "mode"), &RenderingServer::viewport_set_environment_mode);
 	ClassDB::bind_method(D_METHOD("viewport_attach_camera", "viewport", "camera"), &RenderingServer::viewport_attach_camera);
 	ClassDB::bind_method(D_METHOD("viewport_set_scenario", "viewport", "scenario"), &RenderingServer::viewport_set_scenario);
 	ClassDB::bind_method(D_METHOD("viewport_attach_canvas", "viewport", "canvas"), &RenderingServer::viewport_attach_canvas);
@@ -2255,6 +2255,11 @@ void RenderingServer::_bind_methods() {
 	BIND_ENUM_CONSTANT(VIEWPORT_CLEAR_NEVER);
 	BIND_ENUM_CONSTANT(VIEWPORT_CLEAR_ONLY_NEXT_FRAME);
 
+	BIND_ENUM_CONSTANT(VIEWPORT_ENVIRONMENT_DISABLED);
+	BIND_ENUM_CONSTANT(VIEWPORT_ENVIRONMENT_ENABLED);
+	BIND_ENUM_CONSTANT(VIEWPORT_ENVIRONMENT_INHERIT);
+	BIND_ENUM_CONSTANT(VIEWPORT_ENVIRONMENT_MAX);
+
 	BIND_ENUM_CONSTANT(VIEWPORT_SDF_OVERSIZE_100_PERCENT);
 	BIND_ENUM_CONSTANT(VIEWPORT_SDF_OVERSIZE_120_PERCENT);
 	BIND_ENUM_CONSTANT(VIEWPORT_SDF_OVERSIZE_150_PERCENT);

servers/rendering_server.h

@@ -840,7 +840,14 @@ public:
 
 	virtual RID viewport_get_texture(RID p_viewport) const = 0;
 
-	virtual void viewport_set_disable_environment(RID p_viewport, bool p_disable) = 0;
+	enum ViewportEnvironmentMode {
+		VIEWPORT_ENVIRONMENT_DISABLED,
+		VIEWPORT_ENVIRONMENT_ENABLED,
+		VIEWPORT_ENVIRONMENT_INHERIT,
+		VIEWPORT_ENVIRONMENT_MAX,
+	};
+
+	virtual void viewport_set_environment_mode(RID p_viewport, ViewportEnvironmentMode p_mode) = 0;
 	virtual void viewport_set_disable_3d(RID p_viewport, bool p_disable) = 0;
 	virtual void viewport_set_disable_2d(RID p_viewport, bool p_disable) = 0;
 
@@ -1639,6 +1646,7 @@ VARIANT_ENUM_CAST(RenderingServer::FogVolumeShape);
 VARIANT_ENUM_CAST(RenderingServer::ViewportScaling3DMode);
 VARIANT_ENUM_CAST(RenderingServer::ViewportUpdateMode);
 VARIANT_ENUM_CAST(RenderingServer::ViewportClearMode);
+VARIANT_ENUM_CAST(RenderingServer::ViewportEnvironmentMode);
 VARIANT_ENUM_CAST(RenderingServer::ViewportMSAA);
 VARIANT_ENUM_CAST(RenderingServer::ViewportScreenSpaceAA);
 VARIANT_ENUM_CAST(RenderingServer::ViewportRenderInfo);