mirror of https://github.com/axmolengine/axmol.git
28 lines
952 B
Plaintext
28 lines
952 B
Plaintext
|
// Shader taken from: http://webglsamples.googlecode.com/hg/electricflower/electricflower.html
|
||
|
|
|
||
|
|
#ifdef GL_ES
|
||
|
|
precision mediump float;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
varying vec4 v_fragmentColor;
|
||
|
|
varying vec2 v_texCoord;
|
||
|
|
|
||
|
|
uniform vec2 blurSize;
|
||
|
|
uniform vec4 substract;
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
vec4 sum = vec4(0.0);
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord - 4.0 * blurSize) * 0.05;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord - 3.0 * blurSize) * 0.09;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord - 2.0 * blurSize) * 0.12;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord - 1.0 * blurSize) * 0.15;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord ) * 0.16;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord + 1.0 * blurSize) * 0.15;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord + 2.0 * blurSize) * 0.12;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord + 3.0 * blurSize) * 0.09;
|
||
|
|
sum += texture2D(CC_Texture0, v_texCoord + 4.0 * blurSize) * 0.05;
|
||
|
|
|
||
|
|
gl_FragColor = (sum - substract) * v_fragmentColor;
|
||
|
|
}
|
||
|
|
|