forked from 0ad/0ad
47 lines
1.2 KiB
GLSL
47 lines
1.2 KiB
GLSL
#version 110
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uniform mat4 reflectionMatrix;
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uniform mat4 refractionMatrix;
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uniform mat4 losMatrix;
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uniform mat4 shadowTransform;
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uniform float repeatScale;
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uniform vec2 translation;
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uniform float waviness; // "Wildness" of the reflections and refractions; choose based on texture
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#if USE_SHADOW_SAMPLER && USE_SHADOW_PCF
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uniform vec4 shadowScale;
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#endif
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uniform float time;
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uniform float mapSize;
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varying vec3 worldPos;
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varying float waterDepth;
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#if USE_SHADOW && USE_SHADOWS
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varying vec4 v_shadow;
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#endif
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attribute vec3 a_vertex;
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attribute vec4 a_encodedDepth;
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void main()
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{
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worldPos = a_vertex;
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waterDepth = dot(a_encodedDepth.xyz, vec3(255.0, -255.0, 1.0));
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gl_TexCoord[0] = vec4(a_vertex.xz*repeatScale,translation);
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gl_TexCoord[1] = reflectionMatrix * vec4(a_vertex, 1.0); // projective texturing
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gl_TexCoord[2] = refractionMatrix * vec4(a_vertex, 1.0);
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gl_TexCoord[3] = losMatrix * vec4(a_vertex, 1.0);
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gl_TexCoord[3].zw = vec2(a_vertex.xz)/mapSize;
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#if USE_SHADOW && USE_SHADOWS
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v_shadow = shadowTransform * vec4(a_vertex, 1.0);
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#if USE_SHADOW_SAMPLER && USE_SHADOW_PCF
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v_shadow.xy *= shadowScale.xy;
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#endif
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#endif
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gl_Position = gl_ModelViewProjectionMatrix * vec4(a_vertex, 1.0);
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}
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