Open GL requirements

[Entroper]

Because it's better.  http://www.pontifex2.com/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>

That, and Direct3D isn't portable to any other OS.  So if CL wants to make a Mac version and a Linux version, OpenGL is the (only) way to go.

[mendel]

OpenGL properties of a specific driver can be checked at the http://www.delphi3d.net/hardware/index.php" target="_blank">GLinfo website .

I just now had a report of an Intel 810/810E not running Bridge Builder (see http://www.forum.bridgebuilder-game.com/topic.cgi?forum=3&topic=61" target="_blank">here), and it has a severely limited OpenGL line width range (1-3 at 0.5 granularity). Could this be a problem?

Which OpenGL extensions are required to run Pontifex or Bridge Builder?

[jfheon]

Here is the open GL report for Rage Pro Turbo driver as tested on Windows 2000. (The ALL-IN-WONDER PRO, XPERT 98, XPERT@WORK, XPERT@PLAY98, XPERT@PLAY, and XPERT XL all use the same RAGE PRO Display Drivers and software.)

Chronic Logic: anything used by Pontifex not on this list?

GLinfo report GLinfo report

           Driver info
           Driver versionUnknown
           VendorATI
           RendererRagePRO
           OpenGL version1.1.3

           Extension lists
           ExtensionsGL_ATI_lock_texture
           GL_EXT_abgr
           GL_EXT_bgra
           GL_EXT_clip_volume_hint
           GL_EXT_compiled_vertex_array
           GL_EXT_packed_pixels
           GL_EXT_texture_object
           GL_EXT_vertex_array
           GL_WIN_swap_hint
           WGL extensions

           Implementation specifics
           Various limitationsMax. texture size1024 x 1024
                 Max. number of light sources8
                 Max. number of clipping planes6
                 Max. pixel map table size65536
                 Max. display list nesting level64
                 Max. evaluator order30
                 Point size range0.500 to 10.000
                 Point size granularity0.125
                 Line width range0.500 to 10.000
                 Line width granularity0.125

           Maximum stack depthsModelview matrix stack32
                 Projection matrix stack2
                 Texture matrix stack10
                 Name stack128
                 Attribute stack16

           Framebuffer propertiesSub-pixel precision bits3
                 Max. viewport size2048 x 2048
                 Number of auxiliary buffers0

           Extension specifics

            Generated by GLinfo version 2.0
           Written by Tom Nuydens
           For information, visit http://www.delphi3d.net" target="_blank">http://www.delphi3d.net

[Eric69]

I have run GLInfo on my VIAO and got exact the same results as above.

The VIAO has an ATI Rage Mobility M1 chip set.
Currently using driver build M6.11.74-T04, version 5.00.2195.4037 - The default drivers from Microsoft.

I have tried all drivers and tools mentioned by Baggio but alas nothing helped.

Why use OpenGL and not DirectX?

(Edited by Eric69 at 8:21 am on Nov. 8, 2001)