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41 lines
No EOL
1.8 KiB
Markdown
41 lines
No EOL
1.8 KiB
Markdown
# WIP, NOT WORKABLE YET!
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# small3dlib
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3D software rasterizer for (not only) resource-limited computers.
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If you like this, you may also like my similar project: [raycastlib](https://gitlab.com/drummyfish/raycastlib).
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## eye-candy previews
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TODO
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## features
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- Very fast, small and efficient.
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- Uses only integer math (32bit).
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- No dependencies (uses only stdint standard library), extremely portable.
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- Single header, KISS.
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- Pure C99, tested to run as C++ as well.
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- Still flexible -- pixels are left for you to draw in any way you want with a custom fragment-shader like function.
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- Triangles provide barycentric coordinates, thanks to which practically anything that can be achieved with OpenGL can be achieved (texturing, shading, normal-mapping, transparency, PBR, shadow mapping, ...).
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- Tested on multiple platforms (PC, Arduboy, Pokitto, Gamebuino META).
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- Many compile-time options to tune the performance vs quality.
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- Well commented and formatted code.
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- Completely free of legal restrictions, do literally everything you want.
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## limitations
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- Though performance is high, due to multiplatformness it can't match platform-specific rasterizers written in assembly.
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- Proper near-plane culling (subdividing triangles) is missing. You can either cull whole triangles completely or "push" them by the near plane. These options are okay when drawing a models not very close to the camera, but e.g. 3D environments may suffer from artifacts.
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- Due to the limitations of 32bit integer arithmetics, some types of movement may be jerky.
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TODO
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## how to use
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TODO
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## tips
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- Seeing buggy triangles flashing in front of the camera? With the limited 32bit arithmetic far-away things may be overflowing. Try to scale down the scene. If you also don't mind it, set `S3L_STRICT_NEAR_CULLING` to `1` -- this should probably solve it. |