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2022-04-29modules/voronoi: voronoi diagram moduleVito Caputo
This adds a voronoi diagram module, which when used as an overlay produces a mosaic effect. Some settings: cells=N number of voronoi cells randomize={on,off} randomizes the cell locations every frame dirty={on,off} uses a faster sloppy/dithery-looking method Some TODO items: - use a more space efficient representation of the distance buffer, maybe use uint16_t relative offsets into the cells rather than pointers - capping their quantity to 64KiB - anti-alias edges between cells
2022-04-22modules/checkers: experimenting with a checkers overlayVito Caputo
This adds a checkers style overlay module, it's not terribly interesting but may be made more useful if modules start differentiating themselves as substantial vs. overlay effects. It'd be nice if rtv/compose could automagically apply and randomize overlay modules atop others, which would make use of this type of thing as well as encourage more small modules like these be written.
2022-04-19modules/blinds: add simple 80s-aesthetic window blindsVito Caputo
This isn't super interesting but I might just start adding simplistic overlay style modules for compositing/transition use.
2021-02-08modules/swarm: implement a particles swarm moduleVito Caputo
Just a fun little swarm based loosely on 80s-era boids It would be interesting to make stuff like the # of particles and the weights runtime configurable, or exposed as knobs. Using a Z-buffer for occlusions and perhaps shading by depth might make a significant improvement on the visual quality. It might also be interesting to draw the particles as lines connecting their current position with their previous, instead as pixels. Or fat pixels like stars...
2021-01-17plato: regular convex polyhedrons in 3DVito Caputo
plato implements very simple software-rendered 3D models of the five convex regular polyhedra / Platonic solids Some TODO items: - procedurally generate vertices at runtime - add hidden surface removal setting (Z-buffer?) - add flat shaded rendering setting - add gouraud shading, maybe phong too? - show dual polyhedra This was more about slapping together a minimal 3D wireframe software renderer than anything to do with polyhedra, convex regular polyhedra just seemed like an excellent substrate since they're so simple to model.
2020-09-25modules/compose: add a rudimentary compositing moduleVito Caputo
--module=compose,layers=first:second:third:... this draws the named modules in the order listed, overdrawing the output of the previous layers in a cumulative fashion.
2020-01-08modules/drizzle: add a classic 2D raindrops visVito Caputo
Using the new puddle lib throw some raindrops on the framebuffer
2020-01-06spiro: spirograph emulatorPhilip J Freeman
This commit adds a module that emulates a spirograph
2019-11-25meta2d: add a classic 2D metaballs moduleVito Caputo
2019-11-24montage: add montage moduleVito Caputo
This is somewhat unfinished as it uses the generic tiled fragmenter that's not interested in appearances but prioritizes total coverage and simplicity. Montage should have its own tiler that can produce non-square and even non-uniform tile dimensions, prioritizing filling the screen with mostly-uniform tiles. But that's a TODO item, this is good enough for now and exercises some fragment details previously irrelevant and often ignored/broken in modules. The pixbounce module in particular seems completely broken with small fragment sizes.
2019-11-18swab: add a perlin noise visualizationVito Caputo
This maps a different Z-slice through the noise field to each color channel. The slices are moved up and down through the field over time, and the size of the area each color samples is tweaked a bit to make them less coherent with the noise field cells. It could be improved, but I think the output is already neat enough to be worth sharing.
2019-11-14snow: add a simple tv snow / white noise moduleVito Caputo
I wanted to add some noise to the rtv module and figured why not just add a snow module and make rtv pass through it briefly when switching modules. It's not interesting by itself, but as more composite/meta modules like rtv get made it might be handy beyond rtv.
2019-11-14rtv: implement "Rototiller TV" rendererVito Caputo
This is sort of a meta renderer, as it simply renders other modules in its prepare_frame() stage. They're still threaded as the newly public rototiller_module_render() utilizes the threading machinery, it just needs to be called from the serial phase @ prepare_frame(). I'm pretty sure this module will leak memory every time it changes modules, since the existing cleanup paths for the modules hasn't needed to be thorough in the least. So that's something to fix in a later commit, go through all the modules and make sure their destroy_context() entrypoints actually cleans everything up. See the source for some rtv-specific TODOs.
2019-11-10build: build contributed pixbounce moduleVito Caputo
2019-10-14modules/flui2d: add 2D fluid dynamics simulationVito Caputo
This implements near verbatim the code found in the paper titled: Real-Time Fluid Dynamics for Games By Jos Stam It sometimes has the filename GDC03.PDF, or Stam_fluids_GDC03.pdf The density field is rendered using simple linear interpolation of the samples, in a grayscale palette. No gamma correction is being performed. There are three configurable defines of interest: VISCOSITY, DIFFUSION, and ROOT. This module is only threaded in the drawing stage, so basically the linear interpolation uses multiple cores. The simulation itself is not threaded, the implementation from the paper made no such considerations. It would be nice to reimplement this in a threaded fashion with a good generalized API, then move it into libs. Something where a unit square can be sampled for interpolated densities would be nice. Then extend it into 3 dimensions for volumetric effects...
2018-12-30modules/submit: add cellular automata game moduleVito Caputo
This module displays realtime battle for domination simulated as 2D cellular automata. This is just a test of the backend piece for a work-in-progress multiplayer game idea. The visuals were kind of interesting to watch so I figured may as well merge it as a module to share. Enjoy! PS: the results can vary a lot by tweaking the defines in submit.c
2017-02-12julia: add a morphing Julia set rendererVito Caputo
This is unoptimized, with a palette slapped together in vim, but still pretty neat!
2017-02-07plasma: add a plasma rendererVito Caputo
2017-01-18*: move source into src/ subdirVito Caputo
Restoring some organizational sanity since adopting autotools.
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