水shader效果.docx

Shader FX/Water {??Properties {??_WaveScale (Wave scale, Range (0.02,0.15)) = 0.063??_ReflDistort (Reflection distort, Range (0,1.5)) = 0.44??_RefrDistort (Refraction distort, Range (0,1.5)) = 0.40??_RefrColor (Refraction color, COLOR) = ( .34, .85, .92, 1)??_Fresnel (Fresnel (A) , 2D) = gray {}??_BumpMap (Bumpmap (RGB) , 2D) = bump {}??WaveSpeed (Wave speed (map1 x,y; map2 x,y), Vector) = (19,9,-16,-7)??_ReflectiveColor (Reflective color (RGB) fresnel (A) , 2D) = {}??_ReflectiveColorCube (Reflective color cube (RGB) fresnel (A), Cube) = { TexGen CubeReflect }??_HorizonColor (Simple water horizon color, COLOR) = ( .172, .463, .435, 1)??_MainTex (Fallback texture, 2D) = {}??_ReflectionTex (Internal Reflection, 2D) = {}??_RefractionTex (Internal Refraction, 2D) = {}??}??// -----------------------------------------------------------??// Fragment program cards??Subshader {??Tags { WaterMode=Refractive RenderType=Opaque }??Pass {??CGPROGRAM??#pragma vertex vert??#pragma fragment frag??#pragma fragmentoption ARB_precision_hint_fastest??#pragma fragmentoption ARB_fog_exp2??#pragma multi_compile WATER_REFRACTIVE WATER_REFLECTIVE WATER_SIMPLE??#if defined WATER_REFLECTIVE || defined WATER_REFRACTIVE??#define HAS_REFLECTION 1??#endif??#if defined WATER_REFRACTIVE??#define HAS_REFRACTION 1??#endif??#include UnityCG.cginc??uniform float4 _WaveScale4;??uniform float4 _WaveOffset;??#ifdef HAS_REFLECTION??uniform float _ReflDistort;??#endif??#ifdef HAS_REFRACTION??uniform float _RefrDistort;??#endif??struct appdata {??float4 vertex : POSITION;??float3 normal : NORMAL;??};??struct v2f {??V2F_POS_FOG;??#if defined HAS_REFLECTION || defined HAS_REFRACTION??float3 ref;??#endif??float2 bumpuv[2];??float3 viewDir;??};??v2f vert(appdata v)??{??v2f o;??PositionFog( v.vertex, o.pos, o.fog );??// scroll bump waves??float4 temp;??temp.xyzw = v.vertex.xzxz * _WaveScale4 + _WaveOffset;??o.bumpuv[0] = temp.xy;??o.bumpuv[1] = temp.wz;??// object space view direction (will normalize per pixe