mirror of
https://git.coom.tech/drummyfish/small3dlib.git
synced 2024-11-21 20:39:57 +01:00
83 lines
2.6 KiB
Text
83 lines
2.6 KiB
Text
features:
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- presets that can be optionally selected and will configure other constants
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(e.g. a "low memory sort strategy" will turn z-buffer off and turn
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back-to-front sorting on).
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- function for computing normals and lighting
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- triangle sorting:
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- back-to-front (slower, better memory efficiency) DONE
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- front-to-back (faster, but needs 1bit stencil buffer) DONE
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- function to set/clear stencil buffer -- can be useful
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- Optimize persp. correction!
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- Create and use the same function for determining CW/CCW AND left/right vertex
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determination in triangle drawing.
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- Check (and possibly fix) if any barycentric coord ever exceeds the range
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<0,255> due to rounding errors etc.
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- dithered barycentric interpolation function that is faster than normal
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interpolation -- it will randomly picky one of three values, with greater
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probabilities at greater coords
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- option to disable baycentric coordinates computing DONE
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- Z-buffer:
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- full DONE
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- reduced (resolution and precision) DONE
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- more reduced (4-bit)
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- MipMapping? Add triangle size to pixelInfo. DONE
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- perspective correction modes:
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- none DONE
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- full DONE
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- approximate DONE
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- predefined 3D shapes:
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- cube DONE
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- sphere
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- cylinder
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- pyramid
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- plane
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- Depth computation during rasterization -- this should be an optional thing,
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specified with a define (S3L_COMPUTE_DEPTH), which may be turned on
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automatically for some modes (e.g. Z-buffer). It should be computed by the
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fast lerp and passed in the PixelInfo struct. DONE
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- Python tool to convert obj to C array DONE
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- Python tool to convert texture images to C array DONE
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- create demos:
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- model viewer DONE
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- game-like demo (GTA-style, Quake style etc.)
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- offline HQ (lerp texuring, normal mapping, reflections, ...) rendering
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to PPM image file
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- drawModel: create an option that would use a cache to not transform the same
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point twice
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- Optional rendering stats (FPS, rendered triangles, ...).
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- profiling functions for optimization
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bugs:
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- Determining CW/CCW for a triangle is not 100% exact, sometimes leaves holes
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in models (some very thin triangles)!
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- Barycentric coodinates can get wrong in these ways:
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- Any of them can exceed the range <0,511>
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- b0 + b1 can be > 511, which causes b2 (= 511 - b0 - b1) to be negative!
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repeated:
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- valgrind (and similar) checks
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- optimize
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- write tests/benchmarks
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