阴影Pass

作者：追风剑情 发布于：2016-11-8 15:18 分类：Shader 

  1. // 投射阴影Pass
  2. Pass 
  3. {
  4. 	Name "ShadowCaster"
  5. 	Tags { "LightMode" = "ShadowCaster" }
  6. 	
  7. 	Fog {Mode Off}
  8. 	ZWrite On ZTest LEqual Cull Off
  9. 	Offset 1, 1
  10.  
  11. 	CGPROGRAM
  12. 	#pragma vertex vert
  13. 	#pragma fragment frag
  14. 	#pragma multi_compile_shadowcaster
  15. 	#include "UnityCG.cginc"
  16.  
  17. 	struct v2f { 
  18. 		V2F_SHADOW_CASTER;
  19. 	};
  20.  
  21. 	v2f vert( appdata_base v )
  22. 	{
  23. 		v2f o;
  24. 		TRANSFER_SHADOW_CASTER(o)
  25. 		return o;
  26. 	}
  27.  
  28. 	float4 frag( v2f i ) : SV_Target
  29. 	{
  30. 		SHADOW_CASTER_FRAGMENT(i)
  31. 	}
  32. 	ENDCG
  33. }
  34.  
  35. // 接受阴影Pass
  36. // note: editor needs this pass as it has a collector pass.
  37. Pass
  38. {
  39. 	Name "ShadowCollector"
  40. 	Tags { "LightMode" = "ShadowCollector" }
  41. 	
  42. 	Fog {Mode Off}
  43. 	ZWrite On ZTest LEqual
  44.  
  45. 	CGPROGRAM
  46. 	#pragma vertex vert
  47. 	#pragma fragment frag
  48. 	#pragma multi_compile_shadowcollector
  49.  
  50. 	//定义SHADOW_COLLECTOR_PASS宏，以开启阴影相关的辅助宏功能
  51. 	#define SHADOW_COLLECTOR_PASS
  52. 	#include "UnityCG.cginc"
  53.  
  54. 	struct appdata {
  55. 		float4 vertex : POSITION;
  56. 	};
  57.  
  58. 	struct v2f {
  59. 		V2F_SHADOW_COLLECTOR;
  60. 	};
  61.  
  62. 	v2f vert (appdata v)
  63. 	{
  64. 		v2f o;
  65. 		TRANSFER_SHADOW_COLLECTOR(o)
  66. 		return o;
  67. 	}
  68.  
  69. 	fixed4 frag (v2f i) : SV_Target
  70. 	{
  71. 		SHADOW_COLLECTOR_FRAGMENT(i)
  72. 	}
  73. 	ENDCG
  74. }

标签: Shader

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