Re: [Celestia-developers] fps-freeze after latest CVS build

[Don G. <do...@do...>]

No problems with this on Win XP with an ATI 9700 Pro at 16-bit or
32-bit.

-Don G.


----- Original Message ----- 
From: "Chris Laurel" <cl...@ww...>
To: "Fridger Schrempp" <fri...@de...>
Cc: "Celestia Developers" <cel...@li...>
Sent: Thursday, July 22, 2004 1:16 AM
Subject: Re: [Celestia-developers] fps-freeze after latest CVS build


> Fridger,
>
> Thanks for the bug report.  I don't think that the problem is the
fix
> for fonts with antialiasing.  Another recent change I made is to use
a
> default z-buffer depth of 24 bits instead of 16 bits.  I was
somewhat
> hesitant to check in this change out of fear it might cause problems
like
> the one you're experiencing, but Celestia needs all the z-buffer
precision
> it can get.  Turning on 24-bit z make make the Radeon 7000 and other
older
> cards fall back to software rendering.  While I am fairly sure that
> the Radeon 7000 does support 24-bit z, it may not support it with
the
> color depth is 16 bits per pixel.  Could you check your display
settings
> to see if you have 16-bit color enabled?  If so, could you change it
to 24
> or 32-bit color?  If that doesn't work, try changing the 24 to a 16
in
> SetDCPixelFormat() in winmain.cpp.  This is something that I
definitely
> need to fix before we can release 1.3.2.
>
> --Chris
>
> > Chris,
> >
> > I have  quickly compiled the CVS after your latest
'anti-alias'-font
> > fix  with my XP laptop and VS.Net 2003Pro as I do always if there
was a
> > change. The building went OK, the font display looks crisp indeed
BUT:
> > the fps-rate essentially froze to zero!
> > I have not changed any settings for the openGL performance of my
ATI card.
> >
> >
> > I  will certainly look again more carefully into the compilation
and to
> > the hardware openGL support of that build. Meanwhile, perhaps
others can
> > report whether they have observed any irregularities with ATI
cards
> > after your fix. Since for the time being I only have my Laptop at
my
> > displosal, I cannot check against Linux/NVIDIA FX 5900
> >
> > A slightly older Celestia.exe (1.3.1 <-> 1.3.2pre x?) gives the
usual
> > 20-35 fps with exactly the same hardware settings...My
ATI-mobility card
> > gives quite a reasonable display, of course with some important
features
> > missing, including spec lights, ring shadows,...But never any
crashes;-)
> >
> > Bye Fridger
> >
> > Here is the openGL info output that is identical to the 1.3.1
Celestia
> > that works perfectly:
> >
> > Note, my card is actually an ATI-mobility. I always use the latest
> > drivers from DELL (that I need to use for the laptop)
> >
> >
> > Vendor: ATI Technologies Inc.
> > Renderer: Radeon 7000 DDR x86/SSE
> > Version: 1.3.3561 WinXP Release
> > Max simultaneous textures: 3
> > Max texture size: 2048
> >
> > Supported Extensions:
> >
> > GL_ARB_multitexture
> > GL_EXT_texture_env_add
> > GL_EXT_compiled_vertex_array
> > GL_S3_s3tc
> > 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_mirrored_repeat
> > GL_ARB_transpose_matrix
> > GL_ARB_vertex_blend
> > GL_ARB_window_pos
> > GL_ATI_envmap_bumpmap
> > GL_ATI_texture_env_combine3
> > GL_ATI_texture_mirror_once
> > GL_ATI_vertex_streams
> > GL_ATIX_texture_env_combine3
> > GL_ATIX_texture_env_route
> > GL_EXT_abgr
> > GL_EXT_bgra
> > GL_EXT_clip_volume_hint
> > GL_EXT_draw_range_elements
> > GL_EXT_fog_coord
> > GL_EXT_multi_draw_arrays
> > GL_EXT_packed_pixels
> > GL_EXT_point_parameters
> > GL_EXT_rescale_normal
> > GL_EXT_secondary_color
> > GL_EXT_separate_specular_color
> > GL_EXT_stencil_wrap
> > 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_combine
> > GL_EXT_texture_env_dot3
> > GL_EXT_texture_filter_anisotropic
> > GL_EXT_texture_lod_bias
> > GL_EXT_texture_object
> > GL_EXT_texture_rectangle
> > GL_EXT_vertex_array
> > GL_HP_occlusion_test
> > GL_KTX_buffer_region
> > GL_NV_texgen_reflection
> > GL_NV_blend_square
> > GL_NV_occlusion_query
> > GL_SGI_color_matrix
> > GL_SGI_texture_edge_clamp
> > GL_SGIS_texture_border_clamp
> > GL_SGIS_texture_lod
> > GL_SGIS_generate_mipmap
> > GL_SGIS_multitexture
> > GL_SUN_multi_draw_arrays
> > GL_WIN_swap_hint
> > WGL_EXT_extensions_string
> > WGL_EXT_swap_control
> >
> >
> >
> >
> >
> >
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>
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