fix mouse position/input

glsl/defaultFiles.js

  //           udBox(pos, vec3(1.0, 0.3, 1.0)));
  return min(max(-sphere(pos), udBox(pos, vec3(0.75))),
             sphere(pos, 0.05 + 0.25 * (1.0 + sin(iGlobalTime * 0.5)*0.5)));
}`,
  "mouse.frag": `void main() {
  gl_FragColor = vec4(iMouse.xy / iResolution, 0.0, 1.0);
}`,
  "includes/iq-primitives.frag": `float sphere(vec3 pos) {
  return length(pos) - 1.0;

glsl/raymarching.js

    });
    
    tt.canvas.addEventListener("mousemove", function(ev) {
      gl.uniform3f(iMouse, ev.mouseX, ev.mouseY, 0.0);
      gl.uniform3f(iMouse, ev.clientX, ev.clientY, 0.0);
      requestAnimationFrame(tt.render);
    });