<script id="vertShader" type="shader">

varying vec2 vUv;
varying vec3 vecPos;

void main() {
  vUv = uv;
  vecPos = (modelViewMatrix * vec4(position, 1.0)).xyz;
  gl_Position = projectionMatrix * vec4(vecPos, 1.0);
}
</script>
<script id="fragShader" type="shader">

uniform sampler2D textureSampler;
void main(void) {
  gl_FragColor = vec4(0.,1.,0.,1.);
}
</script>