64 lines
1.3 KiB
GLSL
64 lines
1.3 KiB
GLSL
#version 450
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#extension GL_ARB_separate_shader_objects : enable
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#extension GL_ARB_shading_language_420pack : enable
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#extension GL_EXT_nonuniform_qualifier : require
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struct MatPropData
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{
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vec4 color;
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int textureIndex;
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float alpha;
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vec3 beta;
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};
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layout(location = 0) in struct
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{
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vec4 vertPos; // location 0
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vec2 uv; // location = 1
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vec4 normal; // location = 2
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} In;
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// material stuff
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layout(location = 3) flat in struct
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{
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uint eid;
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} In2;
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// push constants
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layout(std140, push_constant) uniform TestPushConstant
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{
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vec3 textColor;
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} testPushConstant;
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layout(set = 6, binding = 0) uniform sampler2D fontBitmap;
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layout(location = 0) out vec4 color;
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layout(location = 1) out uint outEntityID;
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float median(float r, float g, float b)
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{
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return max(min(r, g), min(max(r, g), b));
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}
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void main()
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{
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vec3 msd = texture (fontBitmap, In.uv).rgb;
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float sd = median (msd.r, msd.g, msd.b);
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float screenPxDistance = 2 * (sd - 0.5f);
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float opacity = clamp (screenPxDistance + 0.5f, 0.0f, 2.0f);
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vec4 fragColor = vec4 (1.0f);
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if (opacity > 0.02f && opacity < 1.9f)
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{
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fragColor = vec4(0.0f, 1.0f, 1.0f, 1.0f);
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}
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fragColor = mix(vec4(0.0f), vec4(testPushConstant.textColor, 1.0f), min (opacity, 1.0f));
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color = fragColor;
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outEntityID = In2.eid;
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} |