fragment-shader

相关标签：javascript jquery android 多少钱 iPhone

Passing array of vec2 to Fragment Shader Opengl es 2.0

I am trying to pass in an array of vec2 to a fragment shader but i can\'t seem to work out how. In my application i have the following array.[详细]

2023-03-01 09:21 分类：问答
enable/disable frag & vert shaders

Currently I\'m using glUseProgramObjectARB(ProgramObject); and glUseProgramObjectARB(0); But it doesn\'t switch back properly，and gives me an “invalid operation glError” along these lines[详细]

2023-02-23 16:50 分类：问答
Run multiple OpenGL shaders on a CVImageBuffer

Relating to my previous two questions I\'ve spent a week attempting to figure out how to run multiple shaders against a core video buffer. I know what I need to do but I, frankly, can\'t get the code[详细]

2023-02-20 21:57 分类：问答
Combine multiple opengl fragment shaders

I\'m wanting to port some image processing work to OpenGL for performance using OpenGL ES. I\'ve got a very simple thresholding algorithm in place but I\'d like to combine additional filters to the im[详细]

2023-02-17 22:07 分类：问答
Could someone confirm whether texture mapping in fragment shaders is supported on iPads running 3.2.x?

In the simulator I don\'t get any issues when testing under 3.2, however, on the device the texture doesn\'t show up. Under 4.2 it works fine, both in simulator and the device.[详细]

2023-02-11 08:59 分类：问答
Texture and color together in GLSL?

I cant figure out, how to get with OpenGL ES 2.0 similiar Results to OpenGL ES 1.1. I want to use actually a Sampler2D (to blend my texture with Alpha Channel to the Framebuffer) and also set an Color[详细]

2023-02-10 17:07 分类：问答
GLSL: How to get pixel x,y,z world position?

I want to adjust the colors depending on which xyz position they are in the world. I tried this in my fragment shader:[详细]

2023-02-09 03:01 分类：问答
Strange floating point arithmetics in WebGL fragment shader

I\'m writing a simple WebGL program. I\'m stuck with a strange behavior in a shader program: condition ( 1.01 * 2.0 > 1.0 ) evaluates to true but[详细]

2023-01-31 00:07 分类：问答
Vertex shader vs Fragment Shader [duplicate]

This question already has answers here: 开发者_JAVA百科 What are Vertex and Pixel shaders? (6 answers)[详细]

2023-01-30 07:55 分类：问答
Shader framebuffer readback

I was wondering if there is support in the newer shader models to read-back a pixel value from the target framebuffer. I assume that this is alrdy done in later (non-programmable) stages in the drawin[详细]

2023-01-29 03:46 分类：问答