In OpenGL, when sampling a texture, what is the precision or format used for the location? To elaborate: when sampling with texture(sampler, vTexture ...
I’m working on a ThreeJs project that requires some heavy-duty work done with in a fragment shader so I am looking for a way to use lower quality if t ...
After drawing a triangle, I want to use the readPixels method to get the pixel information, but I can't get it with the following code. const ...
I'm trying to use WebGL 2 on a website but I can seem to get it to work on my PC. Says it's not available. I can't figure out if it's the graphics dri ...
I got it spot light. I cut most interest part of code. it almost all there related with framebuffer: App.operation.draws.drawSquareTex = function ...
I am trying to change the color mapping of a texture once passed to the fragment shader but I am straggling with a sort of saturation issue is some ar ...
Originally I was working with 2D Textures and everything was fine because we are allowed to use UNPACK_FLIP_Y_WEBGL. However, in WebGL2 we are now abl ...
I'm trying to create a WebGL shader that can both output solid rectangles as well as hollow rectangles (with a fixed border width) within the same dra ...
I know that in C or C++, you can see how much a multiplication overflowed by using a long E.g int[] multiply(int a, int b){ long long r = a * b; ...
I'm using GLSL shaders with 3D texture data in WebGL2 code via TypeScript. My texture data contains single-channel samples, with different data source ...
Currently implementing a gpgpu sorter using webgl by rendering to textures. While I have a working sorter I am having difficulty comparing the times o ...
Demo https://codepen.io/Andreslav/pen/wvmjzwe Scheme: Top left - the original. Top right - the result. Bottom right - rounding coordinates when ext ...
I need to use functions such as textureSize() in my fragment shader, but they aren't available in GLSL 100, which is what PIXI defaults to. If I try t ...
I'm currently learning WebGL and I found out that there are actually 2 variants of this api -> webgl and webgl2. So I would say that webgl2 is a ne ...
I am currently migrating some WebGL code to make use of WebGL2 shaders. I have altered the shaders to the es 300 syntax and systematically redacted th ...
I am trying to render a lot of objects. It worked fine on 1 object, just not on multiple. It is causing some of the vertices not to be rendered when l ...
I am trying to create a texture for an object, but it will appear blurry, whether I have gl.LINEAR or gl.NEAREST for my MAG and MIN filters Here is w ...
I have a HTMLCanvasElement with some pixels rendered on it. Now I want to upload its data to another framebuffer (via color attachment texture). gl.t ...
I'm so confused, I am trying to use mouse and keyboard controls (With WebGL2), and I'm trying to rotate and move the camera with these four functions ...
I try to follow example from webgl2fundamentals regarding transform feedback. My goal is to create animation of vertex positions in a way that there ...