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34 views

WebGL build audio distorted in safari browser

Hi guys I ve been trying to play my WebGL build on my iPad but audio is getting distorted asif it being played in half it's normal speed it works perfectly on android and windows browsers is there ...
0
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0answers
47 views

Caching Three.js pages offline on mobile in Reading List

I created some simple Three.js model viewers and apps for our sales team to show at events. Often there is no wifi or internet and they are using iPads or iPhones to show these web pages. At first, we ...
0
votes
1answer
136 views

Why do WebGL fragment shaders slow down over time on mobile?

I cannot find any WebGL fragment shader that will maintain 60fps in a mobile browser. They will run smoothly at first, but over the course of a few minutes will inexorably slow and stutter. Here's a ...
0
votes
1answer
69 views

Shader material not displayed in safari 14.2

There is a shader that uses Perlin noise to create a wave effect. But on safari 14.2, material using this shader is simply not displayed. Is there a way to make it work on newer iOS versions? ...
0
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0answers
246 views

Resizing on-screen WebGL canvas in iOS Safari causes memory leak

I have an HTML canvas on-screen that renders using a WebGL context; memory will leak when I resize that canvas’ width and height properties in iOS Safari. This behavior does not happen on any desktop ...
3
votes
0answers
949 views

cocos2d JS WebGL rendering is not working in iOS 14 public beta

I have some javascript games running on WKWebView with Cocos2d-x 3.17.2 and it has stopped being visible on devices with iOS 14 public beta. The clicks can be heard when touched but nothing is drawn ...
1
vote
0answers
342 views

Threejs 3D objects sometime disappear on Safari

I'm using threejs to load 3D objects on a mapbox layer. But sometimes objects disappear on Safari and Iphone. Safari console displays the following error : "ReferenceError : can't find variable ...
0
votes
0answers
89 views

Ios Safari 3d model loading limit issue (cordova app)

I ran my application for android. I had no problems, but when I ran my ios application, my 3d models with a total size exceeding 10 MB were not loaded. I found the reason. explained here: https://www....
0
votes
1answer
626 views

Three.js sets Texture RGB values to zero when ALPHA is zero on IOS

I am working on a WebGL project using javascript and the three.js framework. For that I am writing a custom shader with GLSL in which I have to load several lookup tables. Meaning I need to use some ...
1
vote
1answer
536 views

Cannot create HALF_FLOAT_OES texture from Uint16Array on iPad

I have an iPad Pro 12.9in ML0F2X/A with iOS 12.1.1. I'm trying to create a half-float WebGL texture, initialized from a Uint16Array: var halfExt = gl.getExtension("OES_texture_half_float"); ... gl....
3
votes
1answer
1k views

WebGL GLSL fragment shader not working on iOS

I am using the Classic Perlin Noise (vec3) functions from here. When I render this shader on my MacBook, the shader runs fine and shows the noise as color like I expect. When I render this shader on ...
0
votes
0answers
336 views

WKWebView takeSnapshot doesn't work for WebGL scene

I get a blank image returned when I use the WKWebView method call: takeSnapshot which otherwise works with a non-webgl scene. Is there any workaround to do a screengrab of a WebGL scene in a ...
2
votes
0answers
322 views

three.js iOS lights limit?

is there a limit on how many lights you can include in a three.js scene on iOS? the code below works on Linux, Mac and Windows... but does not work on iOS (tested on firefox focus and safari). if i ...
4
votes
1answer
412 views

THREEJS - Shadow artifact - IOS devices [closed]

I have a weird shadow artifact only on IOS devices as shown below. The shadows work fine on desktop and android. It is not a bias problem, nor a self shadowing problem (although it does look like it) ...
0
votes
1answer
225 views

Inexplicable behavior in WebGL shader on iOS

I'm seeing some strange behavior that I can't explain in a WebGL shader I've written. This is not an area of expertise for me, so it's entirely possible that I'm misunderstanding something pretty ...

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