Add existing to tracked

node_modules/@cesium/engine/Source/Shaders/Voxels/IntersectBox.js

@@ -0,0 +1,36 @@
+//This file is automatically rebuilt by the Cesium build process.
+export default "// See IntersectionUtils.glsl for the definitions of Ray, RayShapeIntersection,\n\
+// NO_HIT, Intersections\n\
+\n\
+/* Box defines (set in Scene/VoxelBoxShape.js)\n\
+#define BOX_INTERSECTION_INDEX ### // always 0\n\
+*/\n\
+\n\
+uniform sampler2D u_renderBoundPlanesTexture;\n\
+\n\
+RayShapeIntersection intersectBoundPlanes(in Ray ray) {\n\
+    vec4 lastEntry = vec4(ray.dir, -INF_HIT);\n\
+    vec4 firstExit = vec4(-ray.dir, +INF_HIT);\n\
+    for (int i = 0; i < 6; i++) {\n\
+        vec4 boundPlane = getBoundPlane(u_renderBoundPlanesTexture, i);\n\
+        vec4 intersection = intersectPlane(ray, boundPlane);\n\
+        if (dot(ray.dir, boundPlane.xyz) < 0.0) {\n\
+            lastEntry = intersection.w > lastEntry.w ? intersection : lastEntry;\n\
+        } else {\n\
+            firstExit = intersection.w < firstExit.w ? intersection: firstExit;\n\
+        }\n\
+    }\n\
+\n\
+    if (lastEntry.w < firstExit.w) {\n\
+        return RayShapeIntersection(lastEntry, firstExit);\n\
+    } else {\n\
+        return RayShapeIntersection(vec4(-ray.dir, NO_HIT), vec4(ray.dir, NO_HIT));\n\
+    }\n\
+}\n\
+\n\
+void intersectShape(in Ray rayUV, in  Ray rayEC, inout Intersections ix)\n\
+{\n\
+    RayShapeIntersection intersection = intersectBoundPlanes(rayEC);\n\
+    setShapeIntersection(ix, BOX_INTERSECTION_INDEX, intersection);\n\
+}\n\
+";