4
votes
0answers
147 views
+50
Optimizing performance of a heavy fragment shader
I need help optimizing the following set of shaders:
Vertex:
precision mediump float;
uniform vec2 rubyTextureSize;
attribute vec4 vPosition;
attribute vec2 a_TexCoordinate;
varying vec2 tc;
...
1
vote
0answers
1k views
How to implement fisheye effect with a GLSL fragment shader
I would like to render my scene with a wide FOV and then apply a fisheye distortion via fragment shader. How would this shader best be implemented?
Update
I try to reproduce a fisheye effect similar ...
6
votes
1answer
6k views
GLSL - one-pass gaussian blur
It is possible to implement fragment shader to do one-pass gaussian blur?
I have found lot of implementation of two-pass blur (gaussian and box blur):
...
1
vote
3answers
757 views
iOS - pass UIImage to shader as texture
I am trying to pass UIImage to GLSL shader. The fragment shader is:
varying highp vec2 textureCoordinate;
uniform sampler2D inputImageTexture;
uniform sampler2D inputImageTexture2;
void main()
{
...
