render loop
- render_loop_cancel_render
- render_loop_execute
- render_loop_get_execute_results
- render_loop_get_last_render
- render_loop_get_last_render_result
- render_loop_get_next_render
- render_loop_get_parameter
- render_loop_get_render_context_option
- render_loop_get_render_progress
- render_loop_keep_alive
- render_loop_mark_dirty
- render_loop_quit
- render_loop_save_to_disk
- render_loop_set_parameter
- render_loop_set_paused
- render_loop_set_render_context_option
- render_loop_set_render_context_options
- render_loop_start