reorder includes in the default shader

glsl/defaultFiles.js

  gl_FragColor = vec4(gl_FragCoord.xy / iResolution, blue, 1.0);
}`,
  "default.frag": `//#include "includes/sphere-tracer.frag"
//#include "includes/default-main.frag"
//#include "includes/iq-primitives.frag"
//#include "includes/cupe-primitives.frag"
  //           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)));
}
//#include "includes/default-main.frag"
`,
}`,
  "includes/iq-primitives.frag": `float sphere(vec3 pos) {
  return length(pos) - 1.0;
}