# GreasedLine.setPoints broken? **URL:** \ **Category:** Bugs\ **Tags:** greasedline\ **Created:** [November 28, 2024, 8:28am UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033 "2024-11-28T08:28:50Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Tricotou](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/tricotou/32/5844_2.png) [@Tricotou](https://forum.babylonjs.com/u/Tricotou)\ **Post date:** [November 28, 2024, 8:28am UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/1 "2024-11-28T08:28:50Z")
Hello 🙂 Coming back to my [wire physics project](https://forum.babylonjs.com/t/custom-wire-physics-using-greasedlines/54314/1) I noticed that the lines between points won’t render : > **[Babylon.js Playground](https://playground.babylonjs.com/#4U4QH9%23129)** > > Babylon.js playground is a live editor for Babylon.js WebGL and WebGPU 3D scenes * * * After a quick investigation, it appears it comes from `GreasedLine.setPoints` method. Here is a minimalist PG to reproduce : > **[Babylon.js Playground](https://playground.babylonjs.com/#H1LRZ3%23668)** > > Babylon.js playground is a live editor for Babylon.js WebGL and WebGPU 3D scenes (Comment line 28 and the GreasedLine is back) * * * @roland, a recent commit must have changed something in the last days/weeks ---
**Author:** ![HiGreg](https://avatars.discourse-cdn.com/v4/letter/h/c5a1d2/32.png) [@HiGreg](https://forum.babylonjs.com/u/HiGreg)\ **Post date:** [November 28, 2024, 9:37am UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/2 "2024-11-28T09:37:43Z")
I’m seeing a growing square in the second link. And lines between balls on the first link. (Babylon Version 7.36.0 using WebGL2). It looks correct to me. Am I missing something? ---
**Author:** ![Tricotou](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/tricotou/32/5844_2.png) [@Tricotou](https://forum.babylonjs.com/u/Tricotou)\ **Post date:** [November 28, 2024, 12:54pm UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/3 "2024-11-28T12:54:17Z")
> [@HiGreg](#): > > I’m seeing a growing square in the second link. And lines between balls on the first link. (Babylon Version 7.36.0 using WebGL2) Are you ? 🤔 Then it might me hardware or OS related. On first link I have no gray lines, on second link I have blank render without any square… ![Screenshot from 2024-11-28 13-54-43](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/c/d/cd9d67c0e8cd414bef20b79e803051f5b235ebbe.png) * * * - BabylonJS 7.36.0 WebGL2 - Ubuntu 22.04 - Google Chrome Version 131.0.6778.85 (Official Build) (64-bit) * * * `EDIT` : With WebGPU it works, but slow as hell 🤔 . With WebGL2, no GreasedLine after `setPoints` call … ---
**Author:** ![HiGreg](https://avatars.discourse-cdn.com/v4/letter/h/c5a1d2/32.png) [@HiGreg](https://forum.babylonjs.com/u/HiGreg)\ **Post date:** [November 28, 2024, 2:10pm UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/4 "2024-11-28T14:10:03Z")
WebGPU works for me and is slow for me also. And yes, WebGL2 and WebGL both work for me, display lines, and are faster. I think GreasedLine support with WebGPU is in progress. ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [November 28, 2024, 8:23pm UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/5 "2024-11-28T20:23:38Z")
Looks like it might be related to parallel shader compilation [https://playground.babylonjs.com/#H1LRZ3#669](https://playground.babylonjs.com/#H1LRZ3#669) ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [November 28, 2024, 8:43pm UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/6 "2024-11-28T20:43:36Z")
What is happening is that the shader is deleted/created everyframe cause setIndices will end up recreating subMeshes which are the one holding the shader. I will work on it with @Evgeni_Popov tomorrow and probably @Deltakosh on Monday. Sorry for the inconvenience. ---
**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\ **Post date:** [November 29, 2024, 12:18am UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/7 "2024-11-29T00:18:07Z")
On it! ---
**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\ **Post date:** [November 29, 2024, 12:18am UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/8 "2024-11-29T00:18:31Z")
[Fix disposing of effects for submeshes by deltakosh · Pull Request #15910 · BabylonJS/Babylon.js](https://github.com/BabylonJS/Babylon.js/pull/15910) ---
**Author:** ![HiGreg](https://avatars.discourse-cdn.com/v4/letter/h/c5a1d2/32.png) [@HiGreg](https://forum.babylonjs.com/u/HiGreg)\ **Post date:** [November 29, 2024, 2:10am UTC](https://forum.babylonjs.com/t/greasedline-setpoints-broken/55033/9 "2024-11-29T02:10:00Z")
Just testing newly-enabled webm upload.