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kawase blur is working i think

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This commit is contained in:
minjaesong
2021-12-09 23:39:51 +09:00
parent b8361a9514
commit 57b610ce4a
4 changed files with 190 additions and 6 deletions
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23
assets/shaders/kawasedown.frag Normal file
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#version 120
#ifdef GL_ES
precision mediump float;
#endif
varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture;
uniform vec2 halfpixel = vec2(0.0, 0.0);
vec2 twister = vec2(1.0, -1.0);
void main() {
vec4 sum = texture2D(u_texture, v_texCoords) * 4.0;
sum += texture2D(u_texture, v_texCoords - halfpixel);
sum += texture2D(u_texture, v_texCoords + halfpixel);
sum += texture2D(u_texture, v_texCoords - halfpixel * twister);
sum += texture2D(u_texture, v_texCoords + halfpixel * twister);
gl_FragColor = sum / 8.0;
// gl_FragColor = texture2D(u_texture, v_texCoords);
}

28
assets/shaders/kawaseup.frag Normal file
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#version 120
#ifdef GL_ES
precision mediump float;
#endif
varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture;
uniform vec2 halfpixel = vec2(0.0, 0.0);
vec2 doublex = vec2(2.0, 0.0);
vec2 doubley = vec2(0.0, 2.0);
vec2 twister = vec2(1.0, -1.0);
void main() {
vec4 sum = texture2D(u_texture, v_texCoords - halfpixel * doublex);
sum += texture2D(u_texture, v_texCoords - halfpixel * twister) * 2.0;
sum += texture2D(u_texture, v_texCoords + halfpixel * doubley);
sum += texture2D(u_texture, v_texCoords + halfpixel) * 2.0;
sum += texture2D(u_texture, v_texCoords + halfpixel * doublex);
sum += texture2D(u_texture, v_texCoords + halfpixel * twister) * 2.0;
sum += texture2D(u_texture, v_texCoords - halfpixel * doubley);
sum += texture2D(u_texture, v_texCoords - halfpixel) * 2.0;
gl_FragColor = sum / 12.0;
// gl_FragColor = texture2D(u_texture, v_texCoords);
}