45 lines
1.1 KiB
Plaintext
45 lines
1.1 KiB
Plaintext
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uniform samplerCube Env;
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uniform sampler2D NormalMap;
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uniform vec3 CamPos;
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uniform float WaterTimer;
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varying vec3 camVec;
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void main()
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{
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vec2 texCoord = gl_TexCoord[0].st;
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mat3 rot;
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rot[0] = vec3(0.0,0.0,1.0);
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rot[1] = vec3(1.0,0.0,0.0);
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rot[2] = vec3(0.0,1.0,0.0);
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float sinx = 0.025*sin(WaterTimer+texCoord.x*5);
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vec3 NVec1 = texture2D(NormalMap, vec2(-WaterTimer*0.04 + texCoord.x + sinx, -WaterTimer*0.04 + texCoord.y - sinx)).rgb;
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vec3 NVec2 = texture2D(NormalMap, vec2( WaterTimer*0.04 + texCoord.y - sinx, -WaterTimer*0.04 + (1.0-texCoord.x) + sinx)).rgb;
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NVec1 = (NVec1 -0.5) * 2.0;
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NVec2 = (NVec2 -0.5) * 2.0;
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vec3 NVec = NVec1 + NVec2;
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vec3 NVecReflect = normalize(rot * (NVec1 + NVec2) + vec3(0,8,0));
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vec3 NVecRefract = normalize(rot * (NVec1 + NVec2));
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vec3 dir1 = reflect((camVec),NVecReflect);
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//vec3 dir2 = refract((camVec),NVecRefract,0.9);
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vec3 dir2 = reflect((camVec),NVecReflect);
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dir2.y = - dir2.y;
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vec4 reflectColor = textureCube(Env, dir1);
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vec4 refractColor = textureCube(Env, dir2);
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vec4 texColor = reflectColor*0.2 + refractColor*0.8;
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gl_FragColor = vec4(texColor.xyz, 1.0f);
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}
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