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Re: Programs for building software (dos, windows 9x)

Posted on 2018-02-12, 02:05

in Milliways
I toggled some compiler switches to get a headless win32 console version of the rasterizer. Output was validated by testing a particular frame against a reference image - all compilers passed. The program ran for 20 seconds and spat out the number of frames it had generated in that time. The numbers …

Re: Programs for building software (dos, windows 9x)

Posted on 2018-02-11, 08:00

in Milliways
I tested the above three compilers with a c++ vga 13h software rasterizer that uses floats/ints for transforms and mainly ints for rendering. The engine has no notable optimizations and it's up to the compiler to make it fast. The scene was a 320-tri textured sphere spinning around, variably …

Re: Programs for building software (dos, windows 9x)

Posted on 2018-02-09, 16:45

in Milliways
The open watcom issue was quick to debug, as manually increasing stack size allowed it to run. I'll leave testing that with the other compilers to someone else. Scratch this: [It doesn't perform well. On the athlon 64, render time is 27 seconds, above the dmc but below the bc. On the k6-2, render …

Re: Programs for building software (dos, windows 9x)

Posted on 2018-02-09, 08:16

in Milliways
It turns out the dmc executable has issues when built for w32 but not when built for dos. Not up to me to debug it luckily. I ran a few more benches with a dos version of the program. I updated the code above if you intend to run your own tests, which is probably unlikely. To cut down on recursion I …

Re: Programs for building software (dos, windows 9x)

Posted on 2018-02-08, 16:41

in Milliways
That band is interesting, there is colour bleed from both walls in it, which means it WAS part of the render (or at least for some period of time during render it was considered correctly). Usually 'white outs' like this occur when range checks don't go according to plan (especially around trig …

Re: Programs for building software (dos, windows 9x)

Posted on 2018-02-08, 06:22

in Milliways
Someone should benchmark the compilers' perf optimizations. For dos, could include borland, digital mars, and watcom. Maybe for win 9x the latter two and gcc. Use a software rasterizer or whatever. I compiled a modified version of the smallpt path tracer using a few win32 compilers to see whether …

Re: C++ programming on Windows 98 SE

Posted on 2018-02-07, 20:21

in Milliways
leileilol wrote: GCC 4.7.2, but then there's also the issues with the newer libraries that you'd depend on that have been compiled with newer GCCs or have many other blind regressions. I've used that version for win 95, but did they drop 98 support too at the same time?

Re: C++ programming on Windows 98 SE

Posted on 2018-02-07, 19:57

in Milliways
You may want whatever was the latest version of mingw (gcc) to support win 98. Just download a few older versions of the codeblocks ide that has mingw bundled (start with versions from 2012 or so), compile a test program, and see if it runs under your target operating environment. If it does, pick …

Re: VGA Capture Thread

Posted on 2018-02-04, 17:07

Vga capture of random gameplay of games of my choosing, accelerated by the matrox g400. https://www.youtube.com/watch?v=QxkBWIlDIyE. Formula 1 97, monster truck madness 1, monster truck madness 2, final fantasy vii, f-22 lightning 3, colin mcrae rally 1, monaco grand prix racing simulation 2, …

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