Implement female uniform masking.

Resources/Prototypes/Entities/items/clothing/uniforms.yml

@@ -91,6 +91,7 @@
 
   - type: Clothing
     sprite: Clothing/uniform_clown.rsi
+    femaleMask: UniformTop
 
 - type: entity
   parent: UniformBase
@@ -141,4 +142,4 @@
     state: captain
 
   - type: Clothing
-    sprite: Clothing/captain_uniform.rsi            
+    sprite: Clothing/captain_uniform.rsi

Resources/Prototypes/Entities/items/toolbox.yml

@@ -17,7 +17,14 @@
   description: A bright red toolbox, stocked with emergency tools
   components:
   - type: Sprite
-    texture: Objects/Tools/toolbox_r.png
+    layers:
+    - shader: stencilClear
+    - texture: Objects/Tools/wrench.png
+      shader: stencilMask
+
+    - texture: Objects/Tools/toolbox_r.png
+      shader: stencilDraw
+
   - type: Icon
     texture: Objects/Tools/toolbox_r.png
 

Resources/Prototypes/Entities/mobs/human.yml

@@ -58,7 +58,18 @@
       sprite: Mob/human.rsi
       state: human_l_leg
 
+    - shader: stencilClear
+      sprite: Mob/human.rsi
+      state: human_l_leg
+    - shader: stencilMask
+      map: ["enum.HumanoidVisualLayers.StencilMask"]
+      sprite: Mob/masking_helpers.rsi
+      state: female_full
+      visible: false
+
     - map: ["enum.Slots.INNERCLOTHING"]
+      shader: stencilDraw
+
     - map: ["enum.Slots.IDCARD"]
     - map: ["enum.Slots.GLOVES"]
     - map: ["enum.Slots.SHOES"]
@@ -174,7 +185,16 @@
         sprite: Mob/human.rsi
         state: human_l_leg
 
+      - shader: stencilClear
+      - shader: stencilMask
+        map: ["enum.HumanoidVisualLayers.StencilMask"]
+        sprite: Mob/masking_helpers.rsi
+        state: female_full
+        visible: false
+
       - map: ["enum.Slots.INNERCLOTHING"]
+        shader: stencilDraw
+
       - map: ["enum.Slots.IDCARD"]
       - map: ["enum.Slots.GLOVES"]
       - map: ["enum.Slots.SHOES"]

Resources/Prototypes/Shaders/Stencils.yml

@@ -0,0 +1,25 @@
+- type: shader
+  id: stencilClear
+  kind: source
+  path: "/Shaders/stencilclear.swsl"
+  stencil:
+    ref: 0
+    op: Replace
+    func: Always
+
+- type: shader
+  id: stencilMask
+  kind: source
+  path: "/Shaders/stencilmask.swsl"
+  stencil:
+    ref: 1
+    op: Replace
+    func: Always
+
+- type: shader
+  id: stencilDraw
+  kind: canvas
+  stencil:
+    ref: 1
+    op: Keep
+    func: NotEqual

Resources/Shaders/stencilclear.swsl

@@ -0,0 +1,3 @@
+void fragment() {
+    COLOR = vec4(0);
+}

Resources/Shaders/stencilmask.swsl

@@ -0,0 +1,7 @@
+void fragment() {
+    if (texture(TEXTURE, UV).a == 0) {
+        discard; // Discard if no alpha so that there's a hole in the stencil buffer.
+    }
+
+    COLOR = vec4(0);
+}

Resources/Textures/Mob/masking_helpers.rsi/meta.json

@@ -0,0 +1 @@
+{"version": 1, "size": {"x": 32, "y": 32}, "states": [{"name": "female_full", "directions": 4, "delays": [[1.0], [1.0], [1.0], [1.0]]}, {"name": "female_top", "directions": 4, "delays": [[1.0], [1.0], [1.0], [1.0]]}]}