NavalArt update V1.4 Beta - Parts, optimization, and preview features

Foreword

Due to the substantial workload involved in developing the career framework, level configuration, and testing, we have decided to release the official 1.4 update in mid-February.

As for the core game updates, they include a large number of new parts, numerous bug fixes, and extensive optimization efforts. After undergoing a half-month stability test within the community, these changes are now ready for an official release.

We have therefore decided to roll out the above content in advance as Version 1.4 Beta, in order to improve the overall player experience.

Version Control Recommendations

You can switch versions in the Properties menu of your Steam library, choosing either Version 1.32 or the Public Test Branch.

The 1.4 Beta default release will only receive bug fixes in the near term. No additional updates will be made before the official Version 1.4 release in mid-February. This branch represents the most stable version.

The Public Test Branch is intended for ongoing testing of new mechanics and for collecting feedback on new content. At present, its content is identical to the stable release.

After collecting feedback and fixing any potential issues in the stable release, we plan to open early testing of the Career Campaign on the Public Test Branch around January 20, with new content being updated periodically before mid-February.

Note: The Career Campaign will undergo extensive adjustments during the testing phase. Career save files created in the test version may not be compatible with the official 1.4 release.

Optimization Projects

Major improvements to save file loading speed

General

Optimized CPU-heavy operations such as UV calculations
Added preloading for deck material resources
Optimized ship loading functions
Optimized buoyancy curve calculations
Optimized weapon loading
Optimized static loading, including improvements to RebuildMesh for adjustable hulls

Dock Scene

Reduced the number of materials used in the dock scene
Optimized mesh generation logic for vertex-edited hulls

Summary

On a personal mid-range PC, loading an ~8,000-part save in the dock scene was reduced from 4640 ms to 1700 ms, making dock loading 2.7× faster

Dynamic scene loading was reduced from 4290 ms (2309 ms + 1981 ms) to 2366 ms (1692 ms + 674 ms), nearly a 2× speedup

Major improvements to combat scene frame rate

General

Added screen-pixel-occupancy-based LOD; LOD currently applies in combat and sea trial scenes
Significantly reduced the performance cost of anti-aircraft weapons
Optimized wake/track rendering frame rate
Optimized draw time for shells, torpedoes, and other weapons
Optimized particle performance in combat
Optimized ocean height sampling functions
Optimized physics calculations
Optimized turret pathfinding algorithms
Optimized UI performance overhead

Summary

On a personal mid-range PC, in the mission Hunting Flagship Yamato:

Before optimization:

Early phase: ~60 FPS

Mid phase: ~40 FPS

After optimization:

Early phase: ~116 FPS

Mid phase: ~70 FPS

Overall frame rate improvement of approximately 2×

(Credit: Discord Worldoz )

General

Added AI torpedo range checks
- When a target enters 80% of torpedo range, the AI will launch torpedoes.
Added ship loading failure notifications for all scenes
Fixed an issue where screenshots with non-transparent backgrounds contained semi-transparent pixels
Fixed an issue where using in-game text input fields could trigger other hotkey functions

Dock

Fixed an issue where creating an empty save that was not saved before entering Sea Trial would cause the empty save to be loaded again when returning to the dock
Fixed an issue where the bottom hotbar in the dock scene could not correctly assign custom parts
Fixed an issue where color-separated parts were not visible in Armor Mode
Fixed an issue where part paint was not restored when undoing a deleted part
Fixed an issue where the text showing vertex movement distance did not disappear when exiting vertex editing with the ESC key
Adjusted the generation angle for new ship save thumbnails

Gallery

Added independent ray tracing parameter controls for individual ships
Added the ability to adjust ship position and rotation while using the ray tracing renderer
Fixed an issue where the ray tracing renderer incorrectly rendered flags with transparency
Fixed an issue where Gallery presets could save ships that had already been deleted
Adjusted ship placement in the Gallery so that right-click can be used to cancel placement

（Credit: Discord Deviant）

Level

Added Airstrike Level

UK WWII Early
UK WWII Mid–Late
UK HellLoop

Adjusted

Reduced the number of enemy aircraft in all non-HellLoop Airstrike Level
Airfields in the Sea Trial scenario now display the player fleet’s flag

Fixed

Fixed an issue in the Battle Test IJN Escort Carrier campaign where the player spawn point was at the edge of the map
Fixed the ship name issue for Leninsky Komsomol in campaign scenarios
Fixed weapon configuration issues on Omaha-class ships in campaign scenarios

(Credit: 平子鱼)

Custom Color Segmentation System

Sailor and Civilian characters now support custom skins and outfit coloring.

The following parts can be customized: Hat, Brim, Skin, Collar, Tie, Clothes, Trousers, Footwear.

This system is still under development. Due to optimization considerations related to weapon part color segmentation, it currently supports character customization only.

Parts

Advanced weapon animation

Multi-Trunnion Elevation

Now supports weapon parts with multiple barrels

Weapon Component Linkage System

Weapon components can now shift position and rotate in response to elevation changes
Supports Gunsight Elevation Linkage
Supports Complex Rigid Linkage

These features currently apply only to vanilla parts and will be made available to mods after a future ModTool update.

Added

High-arc trajectory support for anti-ship missiles

(Credit: Discord Worldoz)

Added the following parts or variants

n990

Grumman F6F 'Hellcat' Fighter (2000lb AN-M34 HE*1)

n991

Grumman F6F 'Hellcat' Fighter (1600lb AN-Mark 1 AP*1)

n992

Grumman F6F 'Hellcat' Fighter (MK 13-6 *1)

n993

Martin T4M-1 Torpedo Bomber

n994

Martin T4M-1 Torpedo Bomber (Mark 7 Mod 5A *1)

n995

Curtiss BF2C-1 “Goshawk” Fighter-Bomber

n996

Curtiss BF2C-1 “Goshawk” Fighter-Bomber (500lb AN-M64A1 HE *1)

n997

Grumman F7F-3 “Tigercat” Heavy Fighter

n998

Grumman F7F-3 “Tigercat” Heavy Fighter (2000lb AN-M34 HE*1)

n999

Grumman F7F-3 “Tigercat” Heavy Fighter (1600lb AN-Mark 1 AP*1)

n1000

Nakajima B6N2 "Tenzan" Mod.12 Attacker

n1001

Nakajima B6N2 "Tenzan" Mod.12 Attacker (800kg Type.99 No.80 AP *1）

n1002

Nakajima B6N2 "Tenzan" Mod.12 Attacker (250kg Type.99 No.25 HE *2)

n1003

Nakajima B6N2 "Tenzan" Mod.12 Attacker (Type 91 Model 3 *1)

n1004

Besson MB.411 Seaplane

n1005

Sikorsky CH-53K "King Stallion" Helicopter

n1006

British Aerospace “Sea Harrier” FRS.1 V/STOL Strike Fighter

n1007

British Aerospace “Sea Harrier” FRS.1 V/STOL Strike Fighter (1000 lb Mark.13 HE *3)

n1008

Grumman F7F-3 “Tigercat” Heavy Fighter (MK 13-6 *1)

n1009

India Arihant 3-Tubes Vertical Launch System [K-15 “Sagarika” SLBM]

n1010

Chinese HHQ-10 24-Tubes Missile Launcher [HHQ-10 SR-SAM]

n1011

British GWS.30 "Sea Dart" SAM System [Sea Dart Mod.0 Missile]

n1012

Italian 120mm/50 Ansaldo Modello 1926 (Modello 1926 Twin Mount)

n1013

Italian 100mm/47 OTO Modello 1928 (Modello 1928 Twin Mount)

n1014

German 127mm/45 SK C/34 (U.DrhL C/38 Twin Mount)

n1015

Soviet 130mm/50 Pattern 1936 (B-2LMT Twin Mount)

n1016

British 190mm/45 Armstrong Model 1908 (Twin Turret)

n1017

German 283mm/50 SK L/50 (Drh LC/10 Two-gun Turret)

n1018

German 283mm/50 SK L/50 (Drh LC/10 Two-gun Turret，Colored)

n1019

German 150mm/45 SK L/45 (MPL C/06 Casemate)

n1020

German 150mm/45 SK L/45 (MPL C/06 Casemate，Without Shield)

n1021

German 105mm/40 SK L/40 Mount (Shielded)

n1022

Sweden 120 mm/50 Model 1950 (Twin Turret)

n1023

Sweden 120 mm/50 Model 1950 (Twin Turret，Without Slide Rails)

n1024

American 76mm/50 Mark 3 (Mark 4 Single Mount)

n1025

American 102mm/50 Mark 9 (Mark 12 Single Mount)

n1026

152mm/40 41st Year Type (Single Mount)

n1027

152mm/40 41st Year Type (Single Mount，Without Shield)

n1028

French 203mm/50 Modèle 1924 (Modèle 1929 Twin Mount)

n1029

French 203mm/50 Modèle 1924 (Modèle 1929 Twin Mount，Without Deck)

n1030

American CXAM Radar

n1031

Italian E.C.3-ter "Gufo" Search Radar

n1032

6.5 x 4.5 x 1.5m Ballast Tank

n1033

German Rotary Seaplane Catapult

n1034

American Crane II

n1035

American Crane III

n1036

German Winch I

n1037

German Winch I (Without Base)

n1038

German Winch II

n1039

German Winch II (Without Base)

n1040

Universal Winch Base I

n1041

Universal Winch Base II

n1042

German 400mm Scuttle

n1043

German 400mm Scuttle (Bottom-Hinged Blind Cover，Open)

n1044

German 400mm Scuttle (Bottom-Hinged Blind Cover，Close)

n1045

German 400mm Scuttle (Side-Hinged Blind Cover，Open)

n1046

German 400mm Scuttle (Side-Hinged Blind Cover，Close)

n1047

German 350x550mm Scuttle (Bottom-Hinged Blind Cover，Open)

n1048

German 350x550mm Scuttle (Bottom-Hinged Blind Cover，Close)

n1049

German 350x550mm Scuttle (Side-Hinged Blind Cover，Open)

n1050

German 350x550mm Scuttle (Side-Hinged Blind Cover，Close)

n1051

German Watertight Door I

n1052

German Watertight Door I (Without Drip Edge)

n1053

German Watertight Door II

n1054

German Watertight Door II (Without Drip Edge)

n1055

German Watertight Door III

n1056

German Watertight Door III (Without Drip Edge)

n1057

German Watertight Door IV

n1058

German Watertight Door IV (Without Drip Edge)

n1059

German Watertight Door V

n1060

German Watertight Door V (Without Drip Edge)

n1061

German Watertight Door VI

n1062

German Watertight Door VI (Without Drip Edge)

n1063

German Bollard I

n1064

German Bollard II

n1065

German Bollard III

n1066

German Bollard IV

n1067

German Bollard V

n1068

Anchor V

n1069

Anchor V (Shank)

n1070

Anchor V (Tripping palm)

n1071

3m Deck Rail

n1072

1.8m Deck Rail

n1073

0.6m Deck Rail

n1074

Chinese Mushroom Ventilation Duct

n1075

Chinese Deck hatch (Da Lian)

n1076

Chinese Deck hatch (Da Lian，Locked)

n1077

Chinese Fire Hydrant (Da Lian)

n1078

Chinese Davit (Ding Yuan)

n1079

British Ventilation Duct (Cressy)

n1080

British Ventilation Duct (Cressy，Left)

n1081

British Ventilation Duct (Cressy，Right)

n1082

Japanese 17m Pinnace (Ceremonial Barge)

n1083

Japanese 14m Daihatsu

n1084

Japanese 13m Chuhatsu

n1085

Japanese 11m Motor Boat

n1086

Japanese 11m Motor Boat (Ceremonial Barge)

n1087

Skylight I

n1088

Skylight II

n1089

Skylight III

n1090

Horizontal V-shaped Structural Bracket

n1091

Trapezoidal Structural Bracket I

n1092

Trapezoidal Structural Bracket II

n1093

Trapezoidal Structural Bracket III

n1094

Trapezoidal Structural Bracket IV

n1095

Italian E.C.3-bis Search Radar

n1096

Soviet 25mm/79 110-PM (2M-3 Twin Mount)

n1097

Soviet 25mm/79 M-110 (2M-3M Twin Mount)

n1098

American 127mm/50 Mark 6 (Mark 9 Single Mount)

n1099

German Fairled I

n1100

German Fairled II

n1101

German Fairled III

n1102

American Bofors AA Gun Tub

n1103

American 1/2 Bofors AA Gun Tub (Fore)

n1104

American 1/2 Bofors AA Gun Tub (Aft)

n1105

American 1/4 Bofors AA Gun Tub (Fore)

n1106

American 1/4 Bofors AA Gun Tub (Aft)

n1107

Universal Hemispherical Shell

n1108

Universal Parabolic Shell

n1109

Universal 1/2 Hemispherical Shell

n1110

Universal 1/4 Hemispherical Shell

Adjustments

Provided Multi-Trunnion Elevation and Weapon Component Linkage System support for the following parts

n91

British 152mm/50 BL Mark XXIII (Mark XXIII Three gun Turret)

n987

German 37mm/83 Flak C/38 (3,7cm Turmlafetten Twin Turret)

853

British 40mm/39 Mark VIII "Pom-Pom" Gun(Mark VI Octuple Mount)

854

British 40mm/39 Mark VIII "Pom-Pom" Gun(Mark VIA Octuple Mount)

855

British 40mm/39 Mark VIII "Pom-Pom" Gun(RP 10 Mark VIA* Octuple Mount)

Adjusted or fixed the following parts

Name

Changes

n116

Japanese 100mm/65 Type 98 Twin Turret

The color of the gun cover was changed from white to khaki.

n120

Soviet 100mm/50 OTO Modello 1928 (Minizini Twin Mount)

Rewrite the name and descriptions

n161

Japanese 510mm/45 Prototype “A Gun” (Two-Gun Turret)

Rewrite the name and descriptions

n240

Japanese 127mm/50 3rd Year Type (Type B Single Mount)

Fixed the issue of the turret cover lacking color.

n643

American 127mm/54 Mark 16 (Mark 39 Single Turret)

Fixed the issue where this cannon was not listed in the dual-purpose cannon parts category.

n902

Italian 203mm/50 Model 1924 (Model 1924 Twin Turret)

Fixed the issue of high elevation angle clipping caused by incorrect barrel positioning.

Rework the following parts models

n59

Japanese 460mm/45 Type 94 Three-gun Turret

n120

Soviet 100mm/50 OTO Modello 1928 (Minizini Twin Mount)

n150

French 330mm/50 Modèle 1931 Quadruple Turret

n161

Japanese 510mm/45 Prototype “A Gun” (Two-Gun Turret)

Apply smooth shading to the following models

4 Blades Tiny Propeller

n48

5 Blades Large Propeller

n49

4 Blades Large Propeller

n114

3 Blades Small Propeller

n326

British 102mm/45 QF Mark VC

Adjusted the following parts

Name

Changes

Before

After

n91

British 152mm/50 BL Mark XXIII (Mark XXIII Three gun Turret)

SpreadX

4.9

4.3

n91

British 152mm/50 BL Mark XXIII (Mark XXIII Three gun Turret)

SpreadY

5.2

5.3

n94...

American 203mm/55 (All)

ReloadTime

n94...

American 203mm/55 (New shells)

APDamage

3800

4250

n116

Japanese 100mm/65 Type 98

SpreadX

5.9

n116

Japanese 100mm/65 Type 98

SpreadY

6.3

6.9

n120