36 lines
878 B
Text
36 lines
878 B
Text
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#ifdef ENABLE_VTF
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layout (location = 0) in LOW_P vec4 v_color;
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#else
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layout (location = 1) in vec2 v_colorTexCoord;
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layout (binding = 1) uniform sampler2D u_colorTex;
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#endif
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layout (location = 2) in vec2 v_maskTexCoord;
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layout (location = 0) out vec4 v_FragColor;
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layout (binding = 0) uniform UBO
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{
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mat4 u_modelView;
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mat4 u_projection;
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vec2 u_contrastGamma;
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vec2 u_position;
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float u_isOutlinePass;
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float u_opacity;
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float u_length;
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};
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layout (binding = 2) uniform sampler2D u_maskTex;
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void main()
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{
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#ifdef ENABLE_VTF
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LOW_P vec4 glyphColor = v_color;
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#else
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LOW_P vec4 glyphColor = texture(u_colorTex, v_colorTexCoord);
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#endif
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float dist = texture(u_maskTex, v_maskTexCoord).r;
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float alpha = smoothstep(u_contrastGamma.x - u_contrastGamma.y, u_contrastGamma.x + u_contrastGamma.y, dist) * u_opacity;
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glyphColor.a *= alpha;
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v_FragColor = glyphColor;
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}
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