Top "Opengl-es-2.0" questions

Subset of the OpenGL 3D graphics API designed for embedded devices such as mobile phones.

Is discard bad for program performance in OpenGL?

I was reading this article, and the author writes: Here's how to write high-performance applications on every platform in two …

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OpenGL ES Android Matrix Transformations

I have a renderer implementing GLSurfaceView.Renderer interface; a subclass of GLSurfaceView and some classes representing my objects I want …

android opengl-es opengl-es-2.0
What versions of GLSL can I use in OpenGL ES 2.0?

I can't seem to find a clear answer on this, despite hours of googling. Can someone just tell me what's …

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How can I do these image processing tasks using OpenGL ES 2.0 shaders?

How can I perform the following image processing tasks using OpenGL ES 2.0 shaders? Colorspace transform ( RGB/YUV/HSL/Lab ) Swirling …

image-processing opengl-es glsl opengl-es-2.0
Fragment shader and coloring a texture

I'm trying to make sense of adjusting texture colors with a fragment shader. My fragment shader is super simple: uniform …

opengl opengl-es opengl-es-2.0 glsl fragment-shader
OpenGL ES (2.0) Shading Language: How to input boolean into vertex shader and pass to fragment shader?

I'm trying to pass a boolean into my vertex shader for the first time; I've only been using floats until …

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Render multiple objects with OpenGL ES 2.0

I am trying to learn OpenGL ES 2.0 to do some iPhone game development. I have read through multiple tutorials and …

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Learning OpenGLES 2.0 on iOS

I'm a beginner with OpenGL ES 2.0 and I'm looking for a good book/resource that will help me with my …

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Framebuffer FBO render to texture is very slow, using OpenGL ES 2.0 on Android, why?

I am programming an Android 2d game using opengl es 2.0. After I draw my sprites to the backbuffer I draw …

android 2d opengl-es-2.0 framebuffer render-to-texture
Drawing a border on a 2d polygon with a fragment shader

I have some simple polygons (fewer than 20 vertices) rendering flat on a simple xy plane, using GL_TRIANGLES and a …

opengl-es opengl-es-2.0 glsl fragment-shader vertex-shader