Is there anyone willing to incorporate this specific animation into a WebGL shader example? This would be extremely helpful for individuals, such as myself, who are trying to learn WebGL.
Reference:
Is there anyone willing to incorporate this specific animation into a WebGL shader example? This would be extremely helpful for individuals, such as myself, who are trying to learn WebGL.
Reference:
I have incorporated your animation into my website at . If WebGL is not supported by your browser, you will receive a "WebGL not supported" message. This animation is inspired by a sandbox created by mrdoob, showcasing a rectangular surface made up of two triangles with the shader applied to it.
Here is the actual shader code:
uniform float time;
uniform vec2 resolution;
uniform vec2 aspect;
void main( void ) {
vec2 position = -aspect.xy + 2.0 * gl_FragCoord.xy / resolution.xy * aspect.xy;
float angle = 0.0 ;
float radius = length(position) ;
if (position.x != 0.0 && position.y != 0.0){
angle = degrees(atan(position.y,position.x)) ;
}
float amod = mod(angle+30.0*time-120.0*log(radius), 30.0);
if (amod<15.0){
gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
} else{
gl_FragColor = vec4( 1.0, 1.0, 1.0, 1.0 );
}
}
The spiral's size adjusts with the browser window, but you also have the option to use a fixed canvas size instead.
Update: Just for entertainment purposes, here is the same implementation in a jsfiddle: http://jsfiddle.net/z9EmN/
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