uniform4f method
Implementation
external void uniform4f(
  WebGLUniformLocation? location,
  GLfloat x,
  GLfloat y,
  GLfloat z,
  GLfloat w,
);external void uniform4f(
  WebGLUniformLocation? location,
  GLfloat x,
  GLfloat y,
  GLfloat z,
  GLfloat w,
);