9 files changed, 30 insertions, 0 deletions
diff --git a/servers/rendering/dummy/storage/utilities.h b/servers/rendering/dummy/storage/utilities.h
index cb7b2a2b63..a42ab0d814 100644
--- a/servers/rendering/dummy/storage/utilities.h
+++ b/servers/rendering/dummy/storage/utilities.h
@@ -109,6 +109,8 @@ public:
 	virtual String get_video_adapter_vendor() const override { return String(); }
 	virtual RenderingDevice::DeviceType get_video_adapter_type() const override { return RenderingDevice::DeviceType::DEVICE_TYPE_OTHER; }
 	virtual String get_video_adapter_api_version() const override { return String(); }
+
+	virtual Size2i get_maximum_viewport_size() const override { return Size2i(); };
 };
 
 } // namespace RendererDummy
diff --git a/servers/rendering/renderer_rd/storage_rd/utilities.cpp b/servers/rendering/renderer_rd/storage_rd/utilities.cpp
index e517186955..4048c46d28 100644
--- a/servers/rendering/renderer_rd/storage_rd/utilities.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/utilities.cpp
@@ -321,3 +321,11 @@ RenderingDevice::DeviceType Utilities::get_video_adapter_type() const {
 String Utilities::get_video_adapter_api_version() const {
 	return RenderingDevice::get_singleton()->get_device_api_version();
 }
+
+Size2i Utilities::get_maximum_viewport_size() const {
+	RenderingDevice *device = RenderingDevice::get_singleton();
+
+	int max_x = device->limit_get(RenderingDevice::LIMIT_MAX_VIEWPORT_DIMENSIONS_X);
+	int max_y = device->limit_get(RenderingDevice::LIMIT_MAX_VIEWPORT_DIMENSIONS_Y);
+	return Size2i(max_x, max_y);
+}
diff --git a/servers/rendering/renderer_rd/storage_rd/utilities.h b/servers/rendering/renderer_rd/storage_rd/utilities.h
index a80eb8510e..dda656c380 100644
--- a/servers/rendering/renderer_rd/storage_rd/utilities.h
+++ b/servers/rendering/renderer_rd/storage_rd/utilities.h
@@ -115,6 +115,8 @@ public:
 	virtual String get_video_adapter_vendor() const override;
 	virtual RenderingDevice::DeviceType get_video_adapter_type() const override;
 	virtual String get_video_adapter_api_version() const override;
+
+	virtual Size2i get_maximum_viewport_size() const override;
 };
 
 } // namespace RendererRD
diff --git a/servers/rendering/rendering_device.cpp b/servers/rendering/rendering_device.cpp
index dd190437a3..93118f39e7 100644
--- a/servers/rendering/rendering_device.cpp
+++ b/servers/rendering/rendering_device.cpp
@@ -974,6 +974,8 @@ void RenderingDevice::_bind_methods() {
 	BIND_ENUM_CONSTANT(LIMIT_MAX_COMPUTE_WORKGROUP_SIZE_X);
 	BIND_ENUM_CONSTANT(LIMIT_MAX_COMPUTE_WORKGROUP_SIZE_Y);
 	BIND_ENUM_CONSTANT(LIMIT_MAX_COMPUTE_WORKGROUP_SIZE_Z);
+	BIND_ENUM_CONSTANT(LIMIT_MAX_VIEWPORT_DIMENSIONS_X);
+	BIND_ENUM_CONSTANT(LIMIT_MAX_VIEWPORT_DIMENSIONS_Y);
 
 	BIND_ENUM_CONSTANT(MEMORY_TEXTURES);
 	BIND_ENUM_CONSTANT(MEMORY_BUFFERS);
diff --git a/servers/rendering/rendering_device.h b/servers/rendering/rendering_device.h
index ca30a30786..d0b85d8220 100644
--- a/servers/rendering/rendering_device.h
+++ b/servers/rendering/rendering_device.h
@@ -1252,6 +1252,8 @@ public:
 		LIMIT_MAX_COMPUTE_WORKGROUP_SIZE_X,
 		LIMIT_MAX_COMPUTE_WORKGROUP_SIZE_Y,
 		LIMIT_MAX_COMPUTE_WORKGROUP_SIZE_Z,
+		LIMIT_MAX_VIEWPORT_DIMENSIONS_X,
+		LIMIT_MAX_VIEWPORT_DIMENSIONS_Y,
 		LIMIT_SUBGROUP_SIZE,
 		LIMIT_SUBGROUP_IN_SHADERS, // Set flags using SHADER_STAGE_VERTEX_BIT, SHADER_STAGE_FRAGMENT_BIT, etc.
 		LIMIT_SUBGROUP_OPERATIONS,
diff --git a/servers/rendering/rendering_server_default.cpp b/servers/rendering/rendering_server_default.cpp
index 9103b0cf56..c0cd564308 100644
--- a/servers/rendering/rendering_server_default.cpp
+++ b/servers/rendering/rendering_server_default.cpp
@@ -331,6 +331,14 @@ bool RenderingServerDefault::is_low_end() const {
 	return RendererCompositor::is_low_end();
 }
 
+Size2i RenderingServerDefault::get_maximum_viewport_size() const {
+	if (RSG::utilities) {
+		return RSG::utilities->get_maximum_viewport_size();
+	} else {
+		return Size2i();
+	}
+}
+
 void RenderingServerDefault::_thread_exit() {
 	exit.set();
 }
diff --git a/servers/rendering/rendering_server_default.h b/servers/rendering/rendering_server_default.h
index fe212151e3..a68c7ddf2c 100644
--- a/servers/rendering/rendering_server_default.h
+++ b/servers/rendering/rendering_server_default.h
@@ -994,6 +994,8 @@ public:
 
 	virtual void set_print_gpu_profile(bool p_enable) override;
 
+	virtual Size2i get_maximum_viewport_size() const override;
+
 	RenderingServerDefault(bool p_create_thread = false);
 	~RenderingServerDefault();
 };
diff --git a/servers/rendering/storage/utilities.h b/servers/rendering/storage/utilities.h
index d240d58917..23a782c14a 100644
--- a/servers/rendering/storage/utilities.h
+++ b/servers/rendering/storage/utilities.h
@@ -181,6 +181,8 @@ public:
 	virtual String get_video_adapter_vendor() const = 0;
 	virtual RenderingDevice::DeviceType get_video_adapter_type() const = 0;
 	virtual String get_video_adapter_api_version() const = 0;
+
+	virtual Size2i get_maximum_viewport_size() const = 0;
 };
 
 #endif // RENDERER_UTILITIES_H
diff --git a/servers/rendering_server.h b/servers/rendering_server.h
index 3c6f46a985..36779690de 100644
--- a/servers/rendering_server.h
+++ b/servers/rendering_server.h
@@ -1575,6 +1575,8 @@ public:
 
 	virtual void set_print_gpu_profile(bool p_enable) = 0;
 
+	virtual Size2i get_maximum_viewport_size() const = 0;
+
 	RenderingDevice *get_rendering_device() const;
 	RenderingDevice *create_local_rendering_device() const;