Questions tagged [opengl-es]

Question 1

I've been trying to write code that can run on multiple GL versions, since I mostly only use very basic features, and one of the versions I am targeting is GL ES 2. Since I know you're supposed to ...

Question 2

I'm trying to use the Fractal Perlin flow noise from Chaos Software (shared under the MIT licence) ...

Question 3

I am developing a drawing app and I encountered a problem. As you can see the color blending feature in opengl es is not accurate. On the left side of the picture is blended through standard equation. ...

Question 4

I'm developping an OpenGLes 3.0 app with Java and I started writing the shader code. For some reason, it seems to mix up the attributes data locations and I don't understand why. Here's the code : ...

Question 5

I'm programming an app with OpenGL ES on Android in Java. The app uses 9 textures during a render loop pass. A depth, position, normal, albedo, noise, SSAO, SSAO blur and two image textures for the ...

Question 6

I wrote a simple Wavefront parser in C++ that loads v, vn, vt and ...

Question 7

In openGL, I have a 3D terrain composed of a grid of 255x255 vertices. The vertex of the lower left corner is at coordinates (-127;-127) and the one of the upper right corner is at coordinates (127;...

Question 8

I was trying to batch quads with the same texture and blend mode into the single draw call using glDrawElementsInstanced. As long as I use just a position, texture ...

Question 9

I'm making an OpenGL es app on android and I'm trying to improve the performance of it. I found this technique called tiled rendering (not the same thing as tiled deffered rendering*) wich divides the ...

Question 10

I'm working with a OpenGL ES/GLSL homebrew engine my company developed, in C++. Below is a screenshot of it rendering shadow acne. The light's direction is too perpendicular to the face of the curve ...

Question 11

I am wondering what does glMapBufferRange actually do? I am accessing my constant buffer like this way: ...

Question 12

I am trying to build an obj file loader and I have written code to read an obj file with face f with v/vt/vn - vertex, texture coordinate, and normal. While going through the obj file, there are so ...

Question 13

I have a game with massively parallelizable logic, which I intend to write calculate on the GPU (Java/LibGDX). I am planning to implement a logic for it through a fragment shader, instead of a compute ...

Question 14

Should I just use the built-in sin() function or my custom sine function? I'm concerned about performance here. I don't care about accuracy much here because I use it to just get wave effects in my ...

Question 15

I need to develop a OpenGL-ES based application to render a model using Physically based Rendering (PBR). Do I need to use Cuda API to render the computation intense PBR rendering? Is there any ...

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Questions tagged [opengl-es]

Is there an equivalent to GL_TEXTURE_WRAP_R on GL ES 2.0?

Procedural fractal Perlin flow noise for mobile

Opengl ES color blending is not accurate

GLSL wrong data read from attribute

Texture loading issue with open gl es on android with multiple SurfaceViews

Convert Wavefront (OBJ) faces into triangles for drawing with OpenGLES

How to apply sampler2Darray textures to different locations of a single mesh?

Most but not all quads appear corrupted when passing matrix and colour using VBO for instanced rendering

The performance gains of tiled rendering on mobile

What's the solution to this kind of shadow acne?

How to update constant buffer patially in OpenGLES

handling obj file without normal [duplicate]

OpenGL Compute Shader vs Fragment Shader device support

Any fast alternative to sine in GLSL?

Cuda API to render using Physically Based Rendering (PBR) in OpenGL-ES based project

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