Dexa logo superimposed onto the Las Vegas Sphere

dexa-vegas-sphere.glsl

// paste this into https://whenistheweekend.com/theSphere.html
// shadertoy source: https://www.shadertoy.com/view/cldBz2

uniform float time;
varying vec2 vUv;
varying vec3 vNormal;

void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
    vec2 center = vec2(0.25, 0.55);
    
    vec2 pixel = fragCoord.xy;
    
    vec2 iResolution = vec2(0.35, 0.5);
    float size = 0.35;
    float height = size * iResolution.y;
    float width = size * iResolution.x;
    
    vec2 diffR = abs(pixel - center);
    
    // inside of rectangle
    float insideRX = step(diffR.x, width / 2.0);
    float insideRY = step(diffR.y, height / 2.0);
    float insideR = insideRX * insideRY;
    
    vec2 centerC = center - vec2(width * 0.5, 0);
    float radiusC = height * 0.25;
    vec2 diffC = pixel - centerC;
    float insideC = step(radiusC, sqrt(diffC.x * diffC.x + diffC.y * diffC.y));
    float inside = insideR * insideC;
    
    fragColor = vec4(inside, inside, inside, 1.0);
}

void main() {
  vec2 fragCoord = vUv;
  mainImage(gl_FragColor, fragCoord);
}