Add existing to tracked

node_modules/@cesium/engine/Source/Shaders/SunVS.js

@@ -0,0 +1,30 @@
+//This file is automatically rebuilt by the Cesium build process.
+export default "in vec2 direction;\n\
+\n\
+uniform float u_size;\n\
+\n\
+out vec2 v_textureCoordinates;\n\
+\n\
+void main() \n\
+{\n\
+    vec4 position;\n\
+    if (czm_morphTime == 1.0)\n\
+    {\n\
+        position = vec4(czm_sunPositionWC, 1.0);\n\
+    }\n\
+    else\n\
+    {\n\
+        position = vec4(czm_sunPositionColumbusView.zxy, 1.0);\n\
+    }\n\
+    \n\
+    vec4 positionEC = czm_view * position;\n\
+    vec4 positionWC = czm_eyeToWindowCoordinates(positionEC);\n\
+    \n\
+    vec2 halfSize = vec2(u_size * 0.5);\n\
+    halfSize *= ((direction * 2.0) - 1.0);\n\
+    \n\
+    gl_Position = czm_viewportOrthographic * vec4(positionWC.xy + halfSize, -positionWC.z, 1.0);\n\
+    \n\
+    v_textureCoordinates = direction;\n\
+}\n\
+";