Yes, I've also noticed this same issue. A very common form of it is a listing with a photo of an OEM / original part and including something along the lines of "Original" in the title. Usually they have some disclaimer in tiny text at the bottom that you "might not receive exactly what is pictured". …

Under OpenGL 1.x FOV is controlled by a projection matrix which is loaded with glLoadMatrix, so you'd want to look for that in the code for something to modify. Well, assuming the game uses the OpenGL matrix stack - as it isn't really required in GL 1.x at all. The game might upload the transformed …

Dege wrote on 2024-03-12, 12:46: Thanks, indeed there was a bug. The fix will be included in the next version. Awesome, thanks for the fix!

Hi Dege, I put together a quick demo scene for you and tested it (working) on a Voodoo 2. Attached it to this post. Hopefully you are able to log the Glide calls and notice something interesting, because it would be difficult for me to extract the code needed for a minimal repro. I'm still not 100% …

I ended up throwing in the towel on this. I tried quite a few different things but as far as I can tell there just isn't a good workaround. I ended up just disabling task switching for Glide mode and called it a day. There's an old Microsoft KB on how to do this - Q226359. On Windows 9x it's pretty …

Hi all, I've been writing a Glide backend for my game and I noticed the Voodoo cards don't really handle multitasking very well. It always freezes for me when tabbing back in. I've tried totally closing the glide context and re-initializing everything (uploading textures again etc) but it never …

Hi there, Not sure if bug reports are welcome here, if not please feel free to disregard. I noticed a problem with dgvoodoo which I believe has to do with the use of homogeneous coordinates in Glide 3.x. I grabbed the latest version from github. Basically the Y axis gets flipped, not really sure why …

It's a good idea - but my engine needs at least Windows 95 to run. I wonder if the original release of Windows 95 included the 1.0 software renderer ? This would've pre-dated the 1.1 spec. I'm going to try that out later tonight. Windows 95 didn't have one until MS released the OPENGL95.EXE addon, …

bakemono wrote on 2024-02-11, 13:10: What about the OpenGL software renderer included with WinNT 3.51? It's a good idea - but my engine needs at least Windows 95 to run. I wonder if the original release of Windows 95 included the 1.0 software renderer ? This would've pre-dated the 1.1 spec. I'm …

Cool, didn't know that! How about the Elsa Gloria XXL? It had that Permedia/GLINT processor and an S3 Virge 325. The Virge was doing VGA on DOS and provided Windows 95 acceleration (2D+Direct3D). On Windows NT, the Permedia/GLINT proccesor was in use (OpenGL support fir CAD, no Direct3D). Speaking …

Hi all, So I've been developing a game with retro hardware support and I added a separate path (mostly for 'completeness', the performance is terrible) for OpenGL 1.0. The main renderer uses 1.1 / 1.2 features. Problem is, I'm having a hard time finding something to test 1.0 out on. I'm wondering if …

Anything of use in the k6-2+ datasheet? https://www.amd.com/system/files/TechDocs/23542a.pdf Thanks! Most 3DNow instructions are just early variants (designed to work with MMX registers) of integer instructions that were later included in SSE or SSE2. If you know SSE it should be easy enough to …

Any help from 3dmark? They advertised support for these instructions. Hmm, probably not - unless the source is available for the tool. Although one of the pdfs in the archive RetroGamer posted is very helpful, was almost exactly what I was looking for. "3DNow! Instruction Porting Guide" from August …

Interesting question, whatcha tryin to do? :-) I'm working on a game engine with Windows 9x support. For some critical routines I'm also writing SSE implementations and the SSE instructions are very well documented online. For example, culing a leaf in the BSP tree with an AABB test is something …

The only official thing left is the manual for SimNow, an ancient piece of development software that used it, with the Athlon/Opteron 64-bit CPUs. https://developer.amd.com/wordpress/media/2012/10/SimNowUsersManual4.6.1.pdf And there are some archived materials here..... https://kib.kiev.ua/x86docs …

Hi there, I was wondering if anyone knew of any additional documentation for the 3DNow! instruction set (or analysis). I've found the official documentation published by AMD (https://www.amd.com/system/files/TechDocs/21928.pdf) but was wondering if anything else was floating around out there. They …

There might be some useful info here: https://fabiensanglard.net/3dfx_sst1/ MINIGL "STANDARD" Even though MiniGL was a subset of the OpenGL 1.1 standard, there was never a spec for it. MiniGL was "whatever functions Quake uses". Utility objdump running against quake.exe binary makes it easy to …

Sorry if this is the wrong place to ask, I wasn't sure which forum to post this in (please feel free to move it if so). I'm developing a game with Windows 9x support currently and an OpenGL based renderer. My understanding (perhaps inaccurate) is that 3dfx cards never really had full official …