Add existing to tracked

node_modules/@cesium/engine/Source/Shaders/Voxels/VoxelVS.glsl

@@ -0,0 +1,11 @@
+in vec2 position;
+
+uniform vec4 u_ndcSpaceAxisAlignedBoundingBox;
+
+void main() {
+    vec2 aabbMin = u_ndcSpaceAxisAlignedBoundingBox.xy;
+    vec2 aabbMax = u_ndcSpaceAxisAlignedBoundingBox.zw;
+    vec2 translation = 0.5 * (aabbMax + aabbMin);
+    vec2 scale = 0.5 * (aabbMax - aabbMin);
+    gl_Position = vec4(position * scale + translation, 0.0, 1.0);
+}