glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
glBufferSubData( GL_UNIFORM_BUFFER, 0,
sizeof(struct ub_world_lighting), &world->ub_lighting );
glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
glBufferSubData( GL_UNIFORM_BUFFER, 0,
sizeof(struct ub_world_lighting), &world->ub_lighting );