32 lines
759 B
GLSL
32 lines
759 B
GLSL
#version 120
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attribute vec4 Position;
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uniform mat4 ProjMat;
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uniform vec2 InSize;
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uniform vec2 OutSize;
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uniform vec2 InScale;
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uniform vec2 InOffset;
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uniform float InRotation;
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uniform float Time;
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varying vec2 texCoord;
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varying vec2 scaledCoord;
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void main(){
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vec4 outPos = ProjMat * vec4(Position.xy, 0.0, 1.0);
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gl_Position = vec4(outPos.xy, 0.2, 1.0);
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texCoord = Position.xy / OutSize;
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texCoord.y = 1.0 - texCoord.y;
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float Deg2Rad = 0.0174532925;
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float InRadians = InRotation * Deg2Rad;
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float Cosine = cos(InRadians);
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float Sine = sin(InRadians);
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float RotU = texCoord.x * Cosine - texCoord.y * Sine;
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float RotV = texCoord.y * Cosine + texCoord.x * Sine;
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scaledCoord = vec2(RotU, RotV) * InScale + InOffset;
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}
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