diff options
-rw-r--r-- | tools/viz/survive_viewer.js | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/viz/survive_viewer.js b/tools/viz/survive_viewer.js index 56ef47f..cbd4fce 100644 --- a/tools/viz/survive_viewer.js +++ b/tools/viz/survive_viewer.js @@ -49,6 +49,9 @@ function add_lighthouse(idx, p, q) { } function recolorTrackers(when) { + if(ctx == undefined) + return; + for (var key in angles) { var colors = []; @@ -501,6 +504,6 @@ function animate() { } function render() { - var use_fpv = $("#fpv")[0].checked; + var use_fpv = $("#fpv").length > 0 && $("#fpv")[0].checked; renderer.render(scene, use_fpv ? fpv_camera : camera); } |