"use strict"; const mSDFBit = { name: "msdf-bit", fragment: { header: ( /* wgsl */ ` fn calculateMSDFAlpha(msdfColor:vec4, shapeColor:vec4, distance:f32) -> f32 { // MSDF var median = msdfColor.r + msdfColor.g + msdfColor.b - min(msdfColor.r, min(msdfColor.g, msdfColor.b)) - max(msdfColor.r, max(msdfColor.g, msdfColor.b)); // SDF median = min(median, msdfColor.a); var screenPxDistance = distance * (median - 0.5); var alpha = clamp(screenPxDistance + 0.5, 0.0, 1.0); if (median < 0.01) { alpha = 0.0; } else if (median > 0.99) { alpha = 1.0; } // Gamma correction for coverage-like alpha var luma: f32 = dot(shapeColor.rgb, vec3(0.299, 0.587, 0.114)); var gamma: f32 = mix(1.0, 1.0 / 2.2, luma); var coverage: f32 = pow(shapeColor.a * alpha, gamma); return coverage; } ` ) } }; const mSDFBitGl = { name: "msdf-bit", fragment: { header: ( /* glsl */ ` float calculateMSDFAlpha(vec4 msdfColor, vec4 shapeColor, float distance) { // MSDF float median = msdfColor.r + msdfColor.g + msdfColor.b - min(msdfColor.r, min(msdfColor.g, msdfColor.b)) - max(msdfColor.r, max(msdfColor.g, msdfColor.b)); // SDF median = min(median, msdfColor.a); float screenPxDistance = distance * (median - 0.5); float alpha = clamp(screenPxDistance + 0.5, 0.0, 1.0); if (median < 0.01) { alpha = 0.0; } else if (median > 0.99) { alpha = 1.0; } // Gamma correction for coverage-like alpha float luma = dot(shapeColor.rgb, vec3(0.299, 0.587, 0.114)); float gamma = mix(1.0, 1.0 / 2.2, luma); float coverage = pow(shapeColor.a * alpha, gamma); return coverage; } ` ) } }; export { mSDFBit, mSDFBitGl }; //# sourceMappingURL=mSDFBit.mjs.map