27 lines
662 B
Forth
27 lines
662 B
Forth
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#version 330
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// Input vertex attributes (from vertex shader)
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in vec2 fragTexCoord;
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in vec4 fragColor;
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// Input uniform values
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uniform sampler2D texture0;
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uniform vec4 colDiffuse;
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// Output fragment color
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out vec4 finalColor;
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// NOTE: Add here your custom variables
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const float smoothing = 1.0/16.0;
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void main()
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{
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// Texel color fetching from texture sampler
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// NOTE: Calculate alpha using signed distance field (SDF)
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float distance = texture(texture0, fragTexCoord).a;
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float alpha = smoothstep(0.5 - smoothing, 0.5 + smoothing, distance);
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// Calculate final fragment color
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finalColor = vec4(fragColor.rgb, fragColor.a*alpha);
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}
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