forked from 0ad/0ad
70 lines
1.8 KiB
GLSL
70 lines
1.8 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 float windAngle;
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uniform float waviness; // "Wildness" of the reflections and refractions; choose based on texture
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uniform vec3 sunDir;
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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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uniform mat4 transform;
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varying vec3 worldPos;
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varying float waterDepth;
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varying vec2 waterInfo;
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varying vec4 normalCoords;
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varying vec3 reflectionCoords;
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varying vec3 refractionCoords;
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varying vec2 losCoords;
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varying float fwaviness;
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varying vec2 WindCosSin;
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#if USE_SHADOW && USE_SHADOWS_ON_WATER
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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 vec2 a_waterInfo;
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attribute vec3 a_otherPosition;
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void main()
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{
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worldPos = vec3(a_vertex.x,15.0,a_vertex.z);
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waterInfo = a_waterInfo;
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waterDepth = a_waterInfo.g;
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WindCosSin = vec2(cos(-windAngle),sin(-windAngle));
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float newX = a_vertex.x * WindCosSin.x - a_vertex.z * WindCosSin.y;
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float newY = a_vertex.x * WindCosSin.y + a_vertex.z * WindCosSin.x;
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normalCoords = vec4(newX,newY,time,0.0);
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normalCoords.xy *= repeatScale;
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reflectionCoords = (reflectionMatrix * vec4(a_vertex, 1.0)).rga; // projective texturing
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refractionCoords = (refractionMatrix * vec4(a_vertex, 1.0)).rga;
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losCoords = (losMatrix * vec4(a_vertex, 1.0)).rg;
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#if USE_SHADOW && USE_SHADOWS_ON_WATER
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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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// Fix the waviness for local wind strength
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fwaviness = waviness * ((0.15+a_waterInfo.r/1.15));
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gl_Position = transform * vec4(a_vertex, 1.0);
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}
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