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Old DirectX files, what do they mean?

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First post, by BEEN_Nath_58

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Going through the redist of old DirectX, there are many files which I can't recognize:

DX5

d3dhalf.dll
d3dpmesh.dll
d3dxof.dll
d3drampf.dll
d3drg8f.dll and similar
d3drg24x.dll and similar
d3drgbf.dll
d3drgbxf.dll
d3drm8f.dll and similar

DX6

d3dramp.dll
dxapi.sys

Can the community help fill in the gaps?

previously known as Discrete_BOB_058

Reply 1 of 4, by BEEN_Nath_58

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I found some, d3dxof.dll is supposedly some thing to handle .X files.

d3dhalf.dll is needed to install a game named Rocket Journey, not sure what it does.

The d3drampf and d3drgf/rgx/rgxf files probably correspond to the early Ramp and RGB dll files. Latest windows and directx probably put rgb and hal into the same file (d3dim.dll and d3drm.dll?) while ramp emulation resides in d3dramp.dll

previously known as Discrete_BOB_058

Reply 2 of 4, by Jo22

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d3dhalf.dll.. related to half-toning?

d3drm.dll.. Direct3D Retained Mode (alternate D3D API with concept of a scene; deprecated)

"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel

//My video channel//

Reply 3 of 4, by BEEN_Nath_58

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Jo22 wrote on 2022-12-02, 21:19:

d3drm.dll.. Direct3D Retained Mode (alternate D3D API with concept of a scene; deprecated)

Yes I am aware of d3drm.dll, but what is that 8f meaning?

previously known as Discrete_BOB_058

Reply 4 of 4, by Jo22

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BEEN_Nath_58 wrote on 2022-12-04, 05:16:
Jo22 wrote on 2022-12-02, 21:19:

d3drm.dll.. Direct3D Retained Mode (alternate D3D API with concept of a scene; deprecated)

Yes I am aware of d3drm.dll, but what is that 8f meaning?

I'm not sure, maybe a reference to 8-Bit colour depth (256c) ?
I seriously don't know. It's just a wild guess.
Some Windows 3.x graphics drivers (third-party) used similar abbreviations for their files, sometimes at least.

"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel

//My video channel//

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