Shader not working on Windows Phone 8.1

I want to use the following shader to generate shadows for 2d sprites:

https://github.com/anlev/Unity-2D-Sprite-cast-and-receive-shadows

In the editor it works fine and looks like this:


If I deploy to the device, no shadow is shown instead shader warnings (see below 'Custom/SpriteShadow' warnings):

Code (CSharp):

1. Module information:
2. Built with Compiler Ver '180040629'
3. Built from '5.5/release' branch
4. Version is '5.5.2f1 (3829d7f588f3)'
5. Debug build
6. Application type 'XAML'
7. Used 'PhoneSDK 8.1'
8.  
9. '2DShadowTest.exe' (CoreCLR: .): Loaded 'C:\windows\system32\en-US\mscorlib.debug.resources.dll'. Module was built without symbols.
10. Exception thrown: 'System.ArgumentException' in mscorlib.ni.dll
11. OS 'Windows Phone 8.1 (6.3.9651)'
12.  
13. PlayerConnection initialized from C:/Data/SharedData/PhoneTools/AppxLayouts/ae91cb92-6289-4b5b-bbdf-bf14658943bcVS.Debug_ARM.Patrick/Data (debug = 0)
14.  
15. Exception thrown: 'System.ArgumentException' in mscorlib.ni.dll
16. PlayerConnection initialized network socket : 0.0.0.0 55491
17.  
18. Multi-casting "[IP] 192.168.178.20 [Port] 55491 [Flags] 2 [Guid] 4270911577 [EditorId] 1404364021 [Version] 1048832 [Id] MetroPlayerARM(Windows-Phone) [Debug] 0" to [225.0.0.222:54997]...
19.  
20. Started listening to [0.0.0.0:55491]
21.  
22. GfxDevice: creating device client; threaded=1
23.  
24. Direct3D:
25.  
26.     Version:  Direct3D 11.0 [level 9.3]
27.  
28.     Renderer: Qualcomm Adreno 225 (WDDM v1.2) (ID=0x32303032)
29.  
30.     Vendor:   Qualcomm
31.  
32.     VRAM:     449 MB
33.  
34. Initialize engine version: 5.5.2f1 (3829d7f588f3)
35.  
36. '2DShadowTest.exe' (CoreCLR: .): Loaded 'C:\data\ProgramData\Microsoft\Windows\AppRepository\Packages\ae91cb92-6289-4b5b-bbdf-bf14658943bc_1.0.0.0_arm__pzq3xp76mxafg\NI\UnityEngineProxy.ni.DLL'. Cannot find or open the PDB file.
37. '2DShadowTest.exe' (CoreCLR: .): Loaded 'C:\windows\system32\SYSTEM.RUNTIME.INTEROPSERVICES.NI.DLL'. Symbols loaded.
38. WARNING: Shader
39. Unsupported: 'Hidden/Internal-DeferredShading' - Pass '' has no vertex shader
40.  
41. WARNING: Shader
42. Unsupported: 'Hidden/Internal-DeferredShading' - Setting to default shader.
43.  
44. WARNING: Shader
45. Unsupported: 'Hidden/Internal-DeferredReflections' - Pass '' has no vertex shader
46.  
47. WARNING: Shader
48. Unsupported: 'Hidden/Internal-DeferredReflections' - Setting to default shader.
49.  
50. WARNING: Shader
51. Unsupported: 'Hidden/Internal-ScreenSpaceShadows' - Pass '' has no vertex shader
52.  
53. WARNING: Shader
54. Unsupported: 'Hidden/Internal-ScreenSpaceShadows' - Pass '' has no vertex shader
55.  
56. WARNING: Shader
57. Unsupported: 'Hidden/Internal-PrePassLighting' - Pass '' has no vertex shader
58.  
59. WARNING: Shader
60. Unsupported: 'Hidden/Internal-PrePassLighting' - Setting to default shader.
61.  
62. WARNING: Shader
63. Unsupported: 'Legacy Shaders/VertexLit' - Pass 'SHADOWCASTER' has no vertex shader
64.  
65. WARNING: Shader
66. Unsupported: 'Hidden/CubeBlur' - Pass '' has no vertex shader
67.  
68. WARNING: Shader
69. Unsupported: 'Hidden/CubeCopy' - Pass '' has no vertex shader
70.  
71. WARNING: Shader
72. Unsupported: 'Hidden/CubeBlend' - Pass '' has no vertex shader
73.  
74. Logical Screen DPI is 172.80.
75.  
76. Begin showing splash screen.
77.  
78. The following GlobalManagers were stripped from the build (Either because they're not used or not supported on this platform):
79.  NetworkManager
80.  MasterServerInterface
81.  UnityAdsManager
82.  ClusterInputManager
83.  UnityAnalyticsManager
84.  CrashReportManager
85.  
86. WARNING: Shader
87. Unsupported: 'Custom/SpriteShadow' - Pass 'FORWARD' has no vertex shader
88.  
89. WARNING: Shader
90. Unsupported: 'Custom/SpriteShadow' - Pass 'FORWARD' has no vertex shader
91.  
92. WARNING: Shader
93. Unsupported: 'Custom/SpriteShadow' - Pass 'PREPASS' has no vertex shader
94.  
95. WARNING: Shader
96. Unsupported: 'Custom/SpriteShadow' - Pass 'PREPASS' has no vertex shader
97.  
98. WARNING: Shader
99. Unsupported: 'Custom/SpriteShadow' - Pass 'SHADOWCASTER' has no vertex shader
100.  
101. WARNING: Shader
102. Unsupported: 'Custom/SpriteShadow' - Pass 'META' has no vertex shader
103.  
104. WARNING: Shader
105. Unsupported: 'Custom/SpriteShadow' - All passes removed
106.  
107. UnloadTime: 56.026814 ms
108.  
109. End showing splash screen.
110.  
111. The thread 0xe6c has exited with code 0 (0x0).
112. The program '[2976] 2DShadowTest.exe' has exited with code -1 (0xffffffff).

The sourcecode from the shader:

Code (CSharp):

1. Shader "Custom/SpriteShadow" {
2.     Properties {
3.         _Color ("Color", Color) = (1,1,1,1)
4.         [PerRendererData]_MainTex ("Sprite Texture", 2D) = "white" {}
5.         _Cutoff("Shadow alpha cutoff", Range(0,1)) = 0.5
6.     }
7.     SubShader {
8.         Tags
9.         {
10.             "Queue"="Geometry"
11.             "RenderType"="TransparentCutout"
12.         }
13.         LOD 200
14.  
15.         Cull Off
16.  
17.         CGPROGRAM
18.         // Lambert lighting model, and enable shadows on all light types
19.         #pragma surface surf Lambert addshadow fullforwardshadows
20.  
21.         // Use shader model 3.0 target, to get nicer looking lighting
22.         #pragma target 3.0
23.  
24.         sampler2D _MainTex;
25.         fixed4 _Color;
26.         fixed _Cutoff;
27.  
28.         struct Input
29.         {
30.             float2 uv_MainTex;
31.         };
32.  
33.         void surf (Input IN, inout SurfaceOutput o) {
34.             fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
35.             o.Albedo = c.rgb;
36.             o.Alpha = c.a;
37.             clip(o.Alpha - _Cutoff);
38.         }
39.         ENDCG
40.     }
41.     FallBack "Diffuse"
42. }

What can I do to get this work on the phone?

Greetings
Pat

 

I would suggest moving this post over to the Shaders subforum.

 

Good idea.
@forum admins: could you pleas move this post? Thx.