Questions tagged [webgl]
WebGL is a Javascript API for rendering interactive 3D / 2D graphics on the HTML5 canvas element. It is based on OpenGL ES 2.0.
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Performance of many canvas drawImage calls is very slow
I'm developing a top-down 2D tile-based canvas game. I have a single sprite sheet of all my tiles, and then a JSON tile map array of where they're placed.
Previously I would render all the layers of ...
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What is the best rate at which to send updates to clients for a first person shooter NodeJS WebSocket server?
I developed a multiplayer FPS using WebGL, Nodejs and WebSockets.
So far it is running great.
I am currently using setInterval(sendPlayerPositions, 16); to send updates to WebGL clients.
Ideally I ...
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Removing FMOD from a Unity WebGL project causes an error about not being able to copy fmod_register_static_plugins.cpp
When I imported the FMOD plugin into a Unity WebGL project, then removed it afterwards, I wasn't able to build it due to errors about trying to copy an FMOD file: fmod_register_static_plugins.cpp
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Unity WebGL Progress bar never moves but game finishes downloading and works
Not sure why but the progress bar never moves for WebGL in Chrome, but the game downloads and works?
Using Unity 2020.1.14f1 brotli WebGL builds
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Unity3d FullScreen Mode Vertical Aspect Ratio in WebGl
My game has vertical aspect ratio and looks like this:
When I press full screen button
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How can I import an Excel file in an Unity WebGL game?
Currently, we have a project that runs on Windows and uses an Excel spreadsheet to save/retrive some data/information. Now we want to build that project for WebGL. The problem is that file reading ...
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File saved to IndexedDB lost unless we change scenes
Our game includes an in-game level editor. When the user saves a custom level, the level is serialized and written to a file:
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The rightmost part of the game screen is truncated in HTML
I created a game that, when I play it in Unity, looks like this:
But when I build it in WebGL, the rightmost part of the screen (with the red player character in it) is truncated:
Play it in-browser ...
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Unity WebGL Canvas only loads on select machines
https://herbertjoseph.com
There is a WebGL build in the background of this site, and it doesn't seem to laod on my iPad. I've asked a few people to visit and check it out, and some have said that the ...
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How to position/transform vertices for 2D UI in shaders?
I am building a 3D engine and have a rendering abstraction that focuses on writing shaders. Most my 3D shaders have gl_Position output like:
...
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Techniques for cursor snap-to-vertex in WebGL or OpenGL?
What's a technique for snapping the mouse pointer to vertices in WebGL or OpenGL? All I need is the vertex position, no other info.
Ideally, I'd like to do this without needing to keep positions and ...
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Apply Filters to WebGL Canvas Itself
I am making a game in JavaScript and rendering it to a WebGL canvas.
To give the game some extra spice, I'd like to create filters (or perhaps they're called "Shaders?") to apply directly onto the ...
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THREE.ShaderMaterial cannot perform antialiasing
I created a ShaderMaterial to draw a box in three.js using the following key code:
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Why would running WebGL app in Edge improve performance in Firefox?
I have a WebGL app (built using Unity 2019) which I'm testing locally in Firefox and Edge. If the app is only running in a tab in Firefox, it runs at 25 - 50 fps and has noticeable stutter. If I run ...
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Is it more performant to index in the vertex shader or fragment shader?
I have a shader that draws 2D quads from a texture atlas using instancing. I'd like to add a feature that allows me to map each of the RGBA channels in the texture using a 5x5 matrix. For example, the ...
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How does lookAt matrix math work?
Can someone provide me an explanation of how the lookAt matrix works?
...
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How can I fix the artifacts near the shadow edges in my variance shadow map?
I'm trying to implement variance shadow mapping in my engine. I'm using WebGL 2 and now I have only one directional light source. It's working, but it has a serious issue near the shadow edges and I ...
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What are the options when float textures aren't precise enough?
I am currently experimenting with rendering planetary scale terrain.
I am generating the terrain on the GPU with noise, and to fix the 32 bit floating point precision problems, I generate the ...
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Unity3D in WebGL the Player doesn't have animations
I using Unity 2019.2.14f1 to create a simple 3D game.
I want to build the project for WebGL, but, even though the player has animations on Unity, in the web the Player doesn't have animations even ...
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WebGL fragment shader pixel position
I have written a fragment shader, on a shape which is a square made with gl.TRIANGLE_STRIP, and which displays a radar:
To build the radar, I'm using distance from ...
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Stuttering when using movetowards in a coroutine
I have the following problem with a WebGL project I'm working on:
I have an object which I want to zoom out and move to a specific position at the same time, for this, I've created a coroutine which ...
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Unexpected scaling of UI elements after build [Unity Web]
I have an unusual scaling of UI Elements after my build in unity for WebGL
Game in Unity Engine:
Game in Itch.io:
Has anyone seen this kind of behaviour? any suggestions on what I should look into?
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Logic behind a cubic reflection
I'm creating a cube in WebGL made of mirros that have to reflect the object inside of it.
At the moment I'm stuck because I don't understand the correct logic to implement to achieve the result.
I ...
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threejs lerp and camera the animation is not smooth
what is the problem with linear interpolation?
in update() in case this is animate()
and when I call zoomCamera() in update() there is lerp with smooth
but when I call here
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Unity WebGL Responsive content
I was trying to develop a simple drag and drop items for Web. What I was trying to do is to make the UI elements from web view to mobile view when the aspect ratio is changes.
I need this web view ...
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Why Post-Processing v1 not works in WebGL build?
In my WebGL browser app, i've tried to add Post Processing (first version) stack.
I'm using Unity 2018.4.6f1 (i started 1 years ago to develop this app).
I've added Post Processing Behaviour to my ...
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WebGL-HTML5 canvas in two blogger blog posts show individually but not together?
In my blogger blog: https://cglabprojects.blogspot.com
I have a newer blog post with
<canvas width = "570" height = "570" id = "my_Canvas1"></canvas>
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Unity WebGL Build: Why it shows only Empty Folder?
i'm trying to built my game, made in Unity 2018.3, and i'm trying to built it in WebGL, but the problem is this: built was succeeded, but the Folder is still Empty, and here is the problem occured:
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Input.GetAxisRaw not returning zero after releasing the key
In my WebGL Project here is the way for camera navigation (Movement/Rotation) on Update event:
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WebGL Freeze for some minutes after loading asset bundle
I have to Load/Unload models from a specific URL based on player position. For this reason I am checking player position from model and then load/unload related piece of model in a ...
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View Space From gl_FragCoord
Trying to get the example code for CalcEyeFromWindow() (first one on the page) to work in WebGL, but having no luck.
Paired down the code to the following with some explicit values just in case ...
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Why WebGL Audio isn't working?
I need to download audio (OGG, Mp3 or wav) from URL and play it.
In Editor is working fine, and also in stand alone build.
But not in WebGL build.
My Code:
...
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How to copy text from an InputField to the clipboard in WebGL?
I would like to know if there is a solution to copy/paste the text from/to an InputField in a WebGL Unity app.
For security reasons, Unity WebGL doesn't allow text copy and paste in/from browser.
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Do I need a server if I only want to upload data to a DB?
I'm currently creating a game where people get some kind of reports for their game performance on a website. Let's say, you log-in, play the game, the system gathers your performance data and this is ...
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Open world loading/unloading with asset bundle in unity
I have a very large environment which I have to load/unload in unity Webgl as I can't load them at once. So, I have divide the environment into 1000 x 1000m (1km) (each chunk is consist of three layer ...
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WebGL - two different approaches to Point Light: what is the difference?
So I'm studying Webgl and after directional light I'm approaching point light.
So I've seen two different approaches:
Take the directional light (diffuse and specular components) and multiply them by ...
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Webgl page heap size increasing in each page load then crash
I am getting aw snap or sometime not enough memory problem when I reload my webgl page. I have a webgl project which is empty (just a camera + light), developed in unity3d. I am reloading it, and ...
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How to calculate/structure/define rotation vector for OpenGL / WebGL
I am trying to define the buffer data for WebGL and want to have in there something that encodes the fact that an object might be rotating. So it makes me think of angular momentum. So if you have ...
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The gist of tweening with WebGL / OpenGL
I am trying to wrap my head around how to take advantage of shaders for things like tweening.
For example, there are these simple easing equations, which we can use like this:
...
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How to use 2D textures in OpenGL / WebGL for physics [closed]
Following along the answer here, it was mentioned about textures:
They can also store things like velocities. For example, you can use a texture as a "flow field" for animating particles or other ...
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How to use textures in 2D games in WebGL
I have been trying to figure out how to structure the VBOs in WebGL, and think that keeping them all together in one if at all possible sounds like the best approach. Right now I'm thinking of having ...
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The types of buffers typically used in robust WebGL/OpenGL apps
I am trying to get a feel for how to structure WebGL/OpenGL apps and have been looking through sources for the types of buffers they use. I've found these:
uvs
occlusion
noise
bitangents
tangents
...
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"RENDER WARNING: there is no texture bound to the unit 0" When not Rendering Texture
I have a webgl program that sometimes renders textures, but mostly renders triangles or lines. When I am not rendering a texture, webgl gives the warning, "...
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How to generate or smooth really large procedural terrain?
I'm currently trying to generate a really large procedural terrain in WebGL. I use a quadtree for LOD and plan to generate 1 heightmap for each quadtree node (terrain patch).
The heightmaps are ...
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Difference between "buffer" and "array" in OpenGL?
When I read doc on webGL or OpenGL there can be seen some patterns in how names of functions and objects are used. But I can't understand the difference between buffer object and an array.
There are ...
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What are "free vertex indices" in WebGL 2 and how do they relate to geometry shaders?
In January Notch tweeted about WebGL 2:
WebGL 2 is happening. Bye, compatibility! Hello, 3d textures and pixel buffers!
oh god it's got free vertex indices in the shader. That is basically a geometry ...
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How to use Facebook Web Hosting for my Unity Game for both WebGL and GameRoom
As can be seen from the
Facebook's official Docs
It says that
To have both a Gameroom and a Facebook Web Game, you should leave your Facebook Web Games URL (https) unchanged. For example, https://...
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How to use model matrix with integer coordinates
I'm trying to generate a real-sized planet with WebGL. After researching, I came to the conclusion that the best way to get around 32-bit float precision issues (since GPUs don't support double ...
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Which UVs to use when I have more UVs coordinates than vertices Obj
I have a simple sphere exported from 3DS Max in .obj format. I noticed that I have more UVs than vertices. I parsed the file with a simple program I wrote and then I put the various vertices and UVs ...
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WEBGL antialias false to pixel art low resolution
I know this issue maybe repeated and seems to be very common but I searched first and did not find anything concrete.
I am doing some test and playing around with pixijs. I created an stage 320x180 ...
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