OpenGL: 3D Extensions

[Technologov]

Hi All !

As you may know, VirtualBox 2.1.0 is a very major leap forward, because it is the first release to support 3D Acceleration in form of OpenGL on Windows XP & Vista guests !

Here is a comparison of the OpenGL extensions supported by VirtualBox as compared to my host: (ATI Radeon HD 3850)

Guest: (Windows XP, Virtual Box 2.1.0)

ARB:
GL_ARB_depth_texture
GL_ARB_fragment_program
GL_ARB_multisample
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_shadow
GL_ARB_shadow_ambient
GL_ARB_texture_border_clamp
GL_ARB_texture_compression
GL_ARB_texture_cube_map
GL_ARB_texture_env_add
GL_ARB_texture_env_combine
GL_ARB_texture_env_crossbar
GL_ARB_texture_env_dot3
GL_ARB_transpose_matrix
GL_ARB_vertex_buffer_object
GL_ARB_vertex_program
GL_ARB_window_pos

GL_EXT_blend_color
GL_EXT_blend_minmax
GL_EXT_blend_func_separate
GL_EXT_blend_subtract
GL_EXT_texture_env_add
GL_EXT_texture_env_dot3
GL_EXT_texture_env_combine
GL_EXT_fog_coord
GL_EXT_multi_draw_arrays
GL_EXT_secondary_color
GL_EXT_shadow_funcs
GL_EXT_stencil_wrap
GL_EXT_texture_cube_map
GL_EXT_texture_edge_clamp
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_lod_bias
GL_EXT_texture_object
GL_EXT_texture3D
GL_EXT_texture_rectangle

GL_NV_texgen_reflection

GL_SGIS_generate_mipmap
GL_SGIS_texture_edge_clamp

GL_CR_state_parameter
GL_CR_cursor_position
GL_CR_bounding_box
GL_CR_print_string
GL_CR_tilesort_info
GL_CR_synchronization
GL_CR_head_spu_name
GL_CR_performance_info
GL_CR_window_size
GL_CR_tile_info
GL_CR_saveframe
GL_CR_readback_barrier_size
GL_CR_server_id_sharing
GL_CR_server_matrix

Basically guest sees 58 OpenGL extensions out of 97 available on the host.

===============================================
Host: (Win XP, Core 2, ATI Radeon HD 3850)

GL_AMD_performance_monitor
GL_ARB_depth_texture
GL_ARB_draw_buffers
GL_ARB_fragment_program
GL_ARB_fragment_shader
GL_ARB_multisample
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_pixel_buffer_object
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_shader_objects
GL_ARB_shading_language_100
GL_ARB_shadow GL_ARB_shadow_ambient GL_ARB_texture_border_clamp
GL_ARB_texture_compression
GL_ARB_texture_cube_map
GL_ARB_texture_env_add
GL_ARB_texture_env_combine
GL_ARB_texture_env_crossbar
GL_ARB_texture_env_dot3
GL_ARB_texture_float
GL_ARB_texture_mirrored_repeat
GL_ARB_texture_non_power_of_two
GL_ARB_texture_rectangle
GL_ARB_transpose_matrix
GL_ARB_vertex_buffer_object
GL_ARB_vertex_program
GL_ARB_vertex_shader
GL_ARB_window_pos

GL_ATI_draw_buffers
GL_ATI_envmap_bumpmap
GL_ATI_fragment_shader
GL_ATI_meminfo
GL_ATI_separate_stencil
GL_ATI_texture_compression_3dc
GL_ATI_texture_env_combine3
GL_ATI_texture_float

GL_EXT_abgr
GL_EXT_bgra
GL_EXT_blend_color
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_compiled_vertex_array
GL_EXT_copy_texture
GL_EXT_draw_range_elements
GL_EXT_fog_coord
GL_EXT_framebuffer_object
GL_EXT_framebuffer_sRGB
GL_EXT_gpu_program_parameters
GL_EXT_multi_draw_arrays
GL_EXT_packed_depth_stencil
GL_EXT_packed_pixels
GL_EXT_point_parameters
GL_EXT_rescale_normal
GL_EXT_secondary_color
GL_EXT_separate_specular_color
GL_EXT_shadow_funcs
GL_EXT_stencil_wrap
GL_EXT_subtexture
GL_EXT_texgen_reflection
GL_EXT_texture3D
GL_EXT_texture_compression_s3tc
GL_EXT_texture_cube_map
GL_EXT_texture_edge_clamp
GL_EXT_texture_env_add
GL_EXT_texture_env_combine
GL_EXT_texture_env_dot3
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_lod_bias
GL_EXT_texture_mirror_clamp
GL_EXT_texture_object
GL_EXT_texture_rectangle
GL_EXT_texture_sRGB
GL_EXT_vertex_array

GL_KTX_buffer_region

GL_NV_blend_square
GL_NV_texgen_reflection

GL_SGIS_generate_mipmap
GL_SGIS_texture_edge_clamp
GL_SGIS_texture_lod

GL_WIN_swap_hint

WGL_EXT_swap_control
WGL_ARB_extensions_string
WGL_ARB_pixel_format
WGL_ATI_pixel_format_float
WGL_ARB_multisample
WGL_EXT_swap_control
WGL_ARB_pbuffer
WGL_ARB_render_texture
WGL_ARB_make_current_read
WGL_EXT_extensions_string
WGL_ARB_buffer_region
WGL_EXT_framebuffer_sRGB
WGL_ATI_render_texture_rectangle

The host has all 97 extensions.

Another problem: Even the most basic OpenGL test made my XP guest stuck. I had to reboot the VM.

I used OpenGL Extensions Viewer v2.05 from:
www.realtech-vr.com

The basic test that got stuck my VM is also the same "OpenGL Extensions Viewer".

I hope VirtualBox developers will find my report useful.

-Technologov