Environment variables debug related: coin_debug_glu_info coin_debug_fontsupport coin_debug_3ds coin_debug_audio coin_debug_break coin_debug_caching coin_debug_dl coin_debug_import coin_debug_listmodules coin_debug_soinput_findfile coin_debug_sooffscreenrenderer coin_debug_writerefs coin_randomize_render_caching font/text rendering related: coin_freetype2_libname coin_force_freetype_off coin_force_win32fonts_off coin_font_path coin_disable_utf8 coin_glu_libname coin_aglglue_no_pbuffers coin_debug_dl coin_simage_libname coin_glxglue_no_glx13_pbuffers coin_glxglue_no_pbuffers coin_zlib_libname coin_bzip2_libname coin_wglglue_no_pbuffers coin_dont_mangle_output_names coin_extselection_save_offscreenbuffer coin_force_tiled_offscreenrendering coin_glerror_debugging coin_ida_debug coin_offscreenrenderer_max_tilesize coin_offscreenrenderer_tileheight coin_offscreenrenderer_tilewidth coin_oldstyle_formatting coin_separate_diffuse_transparency_override coin_soinput_search_global_dict coin_sooffscreenrenderer_tileprefix coin_sorted_layers_use_nvidia_rc sound related: coin_sound_buffer_length coin_sound_disable coin_sound_driver_name coin_sound_enable coin_sound_intro_pause coin_sound_num_buffers coin_sound_thread_sleep_time coin_openal_libname texture control related: coin_tex2_linear_limit coin_tex2_linear_mipmap_limit coin_tex2_mipmap_limit coin_tex2_scaleup_limit coin_tex2_use_gltexsubimage coin_maximum_texture2_size coin_maximum_texture3_size rendering (opengl) related: coin_use_gl_vertex_arrays coin_normalization_cubemap_size oiv_num_sorted_layers_passes coin_max_vbo_memory coin_num_sorted_layers_passes coin_quadmesh_precise_lighting coin_enable_conformant_gl_clamp coin_glbbox iv_separator_max_caches coin_autocache_local_max coin_autocache_local_min coin_autocache_remote_max coin_autocache_remote_min coin_auto_caching coin_enable_vbo coin_sooffscreenrenderer_allow_resourcehog so_dragger_dir so_shader_dir coindir