In short I would like to read a single pixel value from a WebGL 2 depth texture in JavaScript. Is this at all possible? The scenario I am rendering a scene in WebGL 2. The renderer is given a depth texture to which it writes the depth buffer. This depth texture is used in post processing shaders and the like,
Tag: webgl2
Using mat4 attribute in WebGL2
I am trying to pass a 4×4 matrix as an attribute to WebGL2 vertex shader. After following closely this SO answer, I am stuck with wrapping my head around why I can’t successfully render and get a glDrawArrays: attempt to access out of range vertices in attribute 0 error in my console. It is my understanding that mat4 is represented
How to create WebGL 2 renderer in iOS?
I am trying to create a THREE.WebGLRenderer, but it seems that on iOS, it will only create a WebGL 1. Here is my code for creating the renderer and printing the capability: Is there a way to create WebGL2 renderer on iOS? Answer Browsers on iOS all use WebKit which does not yet support WebGL 2.
Vue JS – How do I get WebGL to render via Vue without disappearing?
Question I’m trying to use Vue JS to display some very simple WebGL. I use a Vue method call inside my canvas element to start the function that renders the WebGL. It all works fine, except that the rendered image flashes on the screen in a flash, then disappears. The image is a simple triangle that’s supposed to just sit