sdfsdfs

node_modules/pixi.js/lib/scene/text/sdfShader/shader-bits/mSDFBit.js

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+'use strict';
+
+"use strict";
+const mSDFBit = {
+  name: "msdf-bit",
+  fragment: {
+    header: (
+      /* wgsl */
+      `
+            fn calculateMSDFAlpha(msdfColor:vec4<f32>, shapeColor:vec4<f32>, 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<f32>(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;
+            }
+        `
+    )
+  }
+};
+
+exports.mSDFBit = mSDFBit;
+exports.mSDFBitGl = mSDFBitGl;
+//# sourceMappingURL=mSDFBit.js.map