message: always apply marker in shader
diff: export default `
  -// only mark elements with an alpha above the picking threshold
  -if (gl_FragColor.a >= uPickingAlphaThreshold) {
  float marker = floor(vMarker * 255.0 + 0.5); // rounding required to work on some cards on win
  if (marker > 0.1) {
  if (intMod(marker, 2.0) > 0.1) {
  @@ -9,5 +7,4 @@ if (gl_FragColor.a >= uPickingAlphaThreshold) {
  gl_FragColor.rgb = mix(uSelectColor, gl_FragColor.rgb, 0.3);
  }
  }
  -}
  `;
  \ No newline at end of file
  