Add existing to tracked

node_modules/@cesium/engine/Source/Shaders/BufferPolylineMaterialVS.glsl

@@ -0,0 +1,63 @@
+#ifdef USE_FLOAT64
+in vec3 positionHigh;
+in vec3 positionLow;
+in vec3 prevPositionHigh;
+in vec3 prevPositionLow;
+in vec3 nextPositionHigh;
+in vec3 nextPositionLow;
+#else
+in vec3 position;
+in vec3 prevPosition;
+in vec3 nextPosition;
+#endif
+in vec4 pickColor;
+in vec4 showColorWidthAndTexCoord;
+in float alpha;
+
+out vec4 v_pickColor;
+out vec4 v_color;
+out vec2  v_st;
+out float v_width;
+out float v_polylineAngle;
+
+void main()
+{
+    float show = showColorWidthAndTexCoord.x;
+    vec4 color = czm_decodeRGB8(showColorWidthAndTexCoord.y);
+    float width = showColorWidthAndTexCoord.z;
+    float texCoord = showColorWidthAndTexCoord.w;
+
+    ///////////////////////////////////////////////////////////////////////////
+
+    bool usePrevious = texCoord == 1.0;
+    float expandDir = gl_VertexID % 2 == 1 ? 1.0 : -1.0;
+    float polylineAngle;
+
+#ifdef USE_FLOAT64
+    vec4 positionEC = czm_translateRelativeToEye(positionHigh, positionLow);
+    vec4 prevPositionEC = czm_translateRelativeToEye(prevPositionHigh, prevPositionLow);
+    vec4 nextPositionEC = czm_translateRelativeToEye(nextPositionHigh, nextPositionLow);
+    vec4 positionWC = getPolylineWindowCoordinates(positionEC, prevPositionEC, nextPositionEC, expandDir, width, usePrevious, polylineAngle);
+#else
+    vec4 positionEC = czm_modelView * vec4(position, 1.0);
+    vec4 prevPositionEC = czm_modelView * vec4(prevPosition, 1.0);
+    vec4 nextPositionEC = czm_modelView * vec4(nextPosition, 1.0);
+    // Positions are already in eye space; use the EC variant to skip the redundant transform.
+    vec4 positionWC = getPolylineWindowCoordinatesEC(positionEC, prevPositionEC, nextPositionEC, expandDir, width, usePrevious, polylineAngle);
+#endif
+
+    ///////////////////////////////////////////////////////////////////////////
+
+    gl_Position = czm_viewportOrthographic * positionWC * show;
+
+    v_pickColor = pickColor / 255.0;
+
+    v_color = color;
+    v_color.a *= alpha / 255.0 * show;
+
+    v_st.s = texCoord;
+    v_st.t = czm_writeNonPerspective(clamp(expandDir, 0.0, 1.0), gl_Position.w);
+
+    v_width = width;
+    v_polylineAngle = polylineAngle;
+}