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2019-11-16libs/txt: add minimal ascii text rendererVito Caputo
This is as basic as it gets, the only fanciness is it recognizes newlines and supports horizontal and vertical justification. As this is intended to be run from potentially threaded fragmenter renderers, it receives a fragment and *frame* coordinates for the text to be rendered. If the text doesn't land in the given fragment, nothing gets drawn. Currently this is not optimized at all. There's a stubbed out rect overlap test function which could be used to avoid entering the text rendering loop for fragments with zero overlap, that's an obvious low-hanging fruit optimization. After that, skipping characters that don't overlap would be another obvious thing. As-is the text render loop is always entered and the bounds-checked put pixel helper is used. So every fragment will incur the cost of rendering the full string, even when it's not visible. For the rtv captions this isn't a particularly huge deal, but stuff to improve upon in the future.
2019-11-16libs/ascii: add a basic mono bitmap ascii charsetVito Caputo
The rtv module needs to show some captions, so I'm adding a minimal bitmap ascii text renderer.
2019-11-13ray: add rudimentary gamma correctionVito Caputo
color banding has been quite visible, and somewhat expected with a direct conversion from the linear float color space to the 8-bit integral rgb color components. A simple lookup table is used here to non-linearly map the values, table generation is taken from Greg Ward's REAL PIXELS gem in Graphics Gems II.
2019-05-19libs/ray: fix off by one error in prepared objectsVito Caputo
Missed the sentinel, oops
2019-05-18libs/ray: trivial indentation fixupVito Caputo
2018-12-31libs/grid: fix grid_ops_t.taken player typeVito Caputo
Just making things consistent, also dropping unnecessary player assert from submit module. Future libs/grid may explore using the "unassigned" zero player in taken calls for unassigning cells like in simultaneously taken collision scenarios.
2018-12-30libs/grid: add grid cellular automata componentVito Caputo
Prep for adding a new module displaying a cellular automata based on the grid component from a multiplayer game I'm working on.
2018-04-03libs: commit missing Makefile.am filesVito Caputo
Oops! This should have made it into b5bc96, been sitting in my tree.
2018-03-19ray: libize raytracer core, introduces src/libsVito Caputo
This is the first step of breaking out all the core rendering stuffs into reusable libraries and making modules purely compositional, consumers of various included rendering/effects libraries. Expect multiple modules leveraging libray for a variety of scenes and such. Also expect compositions mixing the various libraries for more interesting visuals.
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