[unity] `URP/Spine/Skeleton` shader now performs proper alpha-testing when `Depth Write` is enabled.

CHANGELOG.md

@@ -160,6 +160,7 @@
   - All Spine Outline shaders, including the URP outline shader, now provide an additional parameter `Width in Screen Space`. Enable it to keep the outline width constant in screen space instead of texture space. Requires more expensive computations, so enable only where necessary. Defaults to `disabled` to maintain existing behaviour.
   - Added support for BlendModeMaterials at runtime instantiation from files via an additional method `SkeletonDataAsset.SetupRuntimeBlendModeMaterials`. See example scene `Spine Examples/Other Examples/Instantiate from Script` for a usage example.
   - SkeletonGraphic: You can now offset the skeleton mesh relative to the pivot via a newly added green circle handle. This allows you to e.g. frame only the face of a skeleton inside a masked frame. Previously offsetting the pivot downwards fails when `Layout Scale Mode` scales the mesh smaller and towards the pivot (e.g. the feet) and thus out of the frame. Now you can keep the pivot in the center of the `RectTransform` while offsetting only the mesh downwards, keeping the desired skeleton area (e.g. the face) centered while resizing. Moving the new larger green circle handle moves the mesh offset, while moving the blue pivot circle handle moves the pivot as usual.
+  - `Universal Render Pipeline/Spine/Skeleton` shader now performs proper alpha-testing when `Depth Write` is enabled, using the existing `Shadow alpha cutoff` parameter.
 
 - **Breaking changes**
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Include/Spine-Skeleton-ForwardPass-URP.hlsl

@@ -49,6 +49,9 @@ VertexOutput vert(appdata v) {
 
 half4 frag(VertexOutput i) : SV_Target{
 	float4 texColor = tex2D(_MainTex, i.uv0);
+#if defined(_ZWRITE)
+	clip(texColor.a * i.color.a - _Cutoff);
+#endif
 #if defined(_TINT_BLACK_ON)
 	return fragTintedColor(texColor, i.darkColor, i.color, _Color.a, _Black.a);
 #else

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Spine-Skeleton-URP.shader

@@ -51,6 +51,7 @@ Shader "Universal Render Pipeline/Spine/Skeleton" {
 			// Spine related keywords
 			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
 			#pragma shader_feature _TINT_BLACK_ON
+			#pragma shader_feature _ZWRITE
 			#pragma vertex vert
 			#pragma fragment frag
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/package.json

@@ -2,7 +2,7 @@
   "name": "com.esotericsoftware.spine.urp-shaders",
   "displayName": "Spine Universal RP Shaders",
   "description": "This plugin provides universal render pipeline (URP) shaders for the spine-unity runtime.\n\nPrerequisites:\nIt requires a working installation of the spine-unity runtime, version 4.2.\n(See http://esotericsoftware.com/git/spine-runtimes/spine-unity)",
-  "version": "4.2.33",
+  "version": "4.2.34",
   "unity": "2019.3",
   "author": {
     "name": "Esoteric Software",