Jump to content
  • Advertisement
Sign in to follow this  
muhkuh

ARB_VERTEX_BLENDING on GF4 MX

This topic is 4848 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hi there, can anyone remember how many simultanious mvp matrices for vertex blending a GF4MX can handle? I was just hired to improve an existing engine. It uses skeletal animation in software where each vertex is influenced by only one bone. As there is a CPU performance problem I'd like to let this be done by the GPU. Unfortately I don't have a test system at the moment and didn't find this information with google. That's why I'm asking you :-) Thanks a lot. Markus

Share this post


Link to post
Share on other sites
Advertisement
Thanks. I hacked together a little command line program. It tells if the extension is available and if so it outputs the number of vertex units.

Thanks a lot.

Do you prefer binary or source code?

Edit:
Mordern chipsets seem to have dropped this extension as there are vertex programs available.

Share this post


Link to post
Share on other sites
Quote:
Original post by Dizzy_exe
I have a GF4 MX 440. If you can tell me how I can find that, I'll be glad to tell you.
glGetIntegerv(GL_MAX_VERTEX_UNITS_ARB, &maxVertUnits);

Share this post


Link to post
Share on other sites
Send me the source code and I'll compile it myself.

And glGetIntegerv(GL_MAX_VERTEX_UNITS_ARB, &maxVertUnits); fails with error code GL_INVALID_ENUM.

Share this post


Link to post
Share on other sites
If the call above fails then the extension is probably not supported. :-( Could you post the EXTENSIONS string of this card please?

If this extension is really not supported be the GF4 MX it would be strange.

Share this post


Link to post
Share on other sites
Here it is :

GL_ARB_imaging GL_ARB_multitexture GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_texture_compression GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_transpose_matrix GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_multi_draw_arrays GL_EXT_packed_pixels GL_EXT_paletted_texture GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shared_texture_palette GL_EXT_stencil_wrap GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_object GL_EXT_vertex_array GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KTX_buffer_region GL_NV_blend_square GL_NV_fence GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_packed_depth_stencil GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_register_combiners GL_NV_texgen_reflection GL_NV_texture_env_combine4 GL_NV_texture_rectangle GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_program GL_NV_vertex_program1_1 GL_SGIS_generate_mipmap GL_SGIS_multitexture GL_SGIS_texture_lod GL_SUN_slice_accum GL_WIN_swap_hint WGL_EXT_swap_control

Share this post


Link to post
Share on other sites
Seems I'm lost with this hardware. The vertex blening is not exposed in OpenGL as in DirectX and the vertex programs are emulated in software.

Thank you for your help.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!