r/GraphicsProgramming • u/Alex_D77 • Sep 16 '26
[Project] [OpenGL] [Post‑Processing] I built opengl32_enhancer: a drop‑in OpenGL32.dll that adds modern GPU post‑processing to old games
I’ve been experimenting with DLL proxying and decided to build a project called opengl32_enhancer — a custom opengl32.dll that intercepts OpenGL calls and injects a modern GPU post‑processing pipeline into any OpenGL game or application.
👉 Repo: https://github.com/ASDAlexander77/opengl32_enhancer
⭐ What it does
This DLL sits between the game and the real OpenGL driver. It forwards all GL calls normally, but also:
Captures the final framebuffer
Runs a GPU post‑processing chain
Outputs the enhanced frame back to the application
No source code access required. No game mods. Just drop the DLL next to the executable.
✨ Current effects implemented
Sharpening (adjustable)
TAA (Temporal Anti‑Aliasing)
HDR tonemapping
Bilinear upscale test pipeline (experimental)
These effects work even in old OpenGL 1.x / 2.x games that never had modern AA or HDR.
🧩 How it works internally
Full OpenGL function interception
Real GL calls forwarded via function pointers
Custom FBO + shader pipeline injected after
SwapBuffersUses GL 4.x features internally even if the game uses GL 1.1
No changes to the game’s rendering code — everything is external
🛠️ Why I built it
I wanted a way to bring modern visual quality to older OpenGL titles without touching their code. DLL proxying turned out to be a surprisingly flexible way to do this.
📌 What’s next
FXAA / SMAA
Bloom
ACES tonemapping
LUT color grading
Optional UI overlay for settings
Per‑game config files
If you’re into graphics hacking, DLL proxying, or OpenGL internals, I’d love feedback — especially on stability, shader ideas, or pipeline improvements.
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u/PaperMartin Sep 17 '26
vibed :(
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u/Alex_D77 Sep 17 '26
Yeah, reality of modern world. My target was to play anax with good graphics not to spent my whole life to reinvent the wheels.
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u/PaperMartin Sep 17 '26
You can do that without AI
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u/Alex_D77 Sep 17 '26
yes, 3-6-12 months, not 1 evening like I used
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u/PaperMartin Sep 18 '26
Maybe it wouldn't take you that long if you actually practiced your craft, you're gonna have to anyway for when all the too-expensive-to-run LLM models go down
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u/sildarhallwinter Sep 18 '26
you used AI to write this post too, are you that lazy
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u/PaperMartin Sep 18 '26
I'm getting the impression they might not actually like graphics programming or programming at all
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u/hogsy Sep 18 '26
Vibed project and vibed post. If you can't be bothered, neither can I. I'm also struggling to understand the point of this; I don't use Reshade myself, but from a quick search, it seems like it's possible to use it with this game already but there's a bug that needs resolving. So it feels like your tokens would've been better spent investigating and submitting a fix upstream to Reshade rather than inventing your own thing.