spine-runtimes/spine-unity/Assets/spine-unity/Shaders/Bones.shader

Shader "Hidden/Spine/Bones" {
Properties {
	_Color ("Color", Color) = (0.5,0.5,0.5,0.5)
	_MainTex ("Particle Texture", 2D) = "white" {}
}

Category {
	Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
	Blend SrcAlpha OneMinusSrcAlpha
	AlphaTest Greater .01
	ColorMask RGB
	
	Lighting Off Cull Off ZTest Always ZWrite Off Fog { Mode Off }

	SubShader {
		Pass {
		
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma multi_compile_particles
			
			#include "UnityCG.cginc"

			sampler2D _MainTex;
			fixed4 _Color;
			
			struct appdata_t {
				float4 vertex : POSITION;
				fixed4 color : COLOR;
				float2 texcoord : TEXCOORD0;
			};

			struct v2f {
				float4 vertex : SV_POSITION;
				fixed4 color : COLOR;
				float2 texcoord : TEXCOORD0;
				#ifdef SOFTPARTICLES_ON
				float4 projPos : TEXCOORD1;
				#endif
			};
			
			float4 _MainTex_ST;

			v2f vert (appdata_t v)
			{
				v2f o;
				o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
				#ifdef SOFTPARTICLES_ON
				o.projPos = ComputeScreenPos (o.vertex);
				COMPUTE_EYEDEPTH(o.projPos.z);
				#endif
				o.color = v.color;
				o.texcoord = TRANSFORM_TEX(v.texcoord,_MainTex);
				return o;
			}

			sampler2D_float _CameraDepthTexture;
			
			fixed4 frag (v2f i) : SV_Target
			{				
				return 2.0f * i.color * _Color * tex2D(_MainTex, i.texcoord);
			}
			ENDCG 
		}
	}	
}
}