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authorVito Caputo <vcaputo@pengaru.com>2022-05-30 16:46:47 -0700
committerVito Caputo <vcaputo@pengaru.com>2022-06-10 21:23:09 -0700
commit37431e5da9fb37ecfed0163abe5f7d8072a5ed0b (patch)
tree16cd8b35dfb8c51795e120f3caf865a2b3bc7639 /src/modules/drizzle/drizzle.c
parentd5db150801023c307fcbe1cd98b4fd8e2d27b55e (diff)
modules/checkers: experimenting with fill modes
this introduces a color= setting syntax: color=#rrggbb color=0xrrggbb color=rrggbb where rrggbb is case-insensitive html-style hexadecimal also introduces a fill= setting: fill=color fill=sampled fill=textured fill=random fill=mixed sampled draws the color from the incoming fragment when layered, textured draws the pixels from the texture when available, random randomizes the choice from color,sampled,textured. mixed isn't implemented fully and is just aliased to random currently. The thinking for mixed is to allow specifying proportions for color,sampled,textured which would then be applied as weights when randomizing the selection from the three at every filled checker. the current implementation is just calling rand() when randomized, but should really be like the other dynamics in checkers with rate control and hash-based. and introduces a fill_module= setting: this is a first stab at employing other modules for filling the filled cells. Note since checkers is already a threaded module, the fill module context gets created per-cpu but with an n_cpus=1. This is kind of the first time module contexts are being rendered manifold for the same frame, and that's illuminating some shortcomings which needed to be dealt with. Some modules automatically advance a phase/T value on every render which gets persisted in their context struct. With how checkers is using contexts, it's desirable for multiple renders of the same context using the same ticks to produce the same output. So modules need to be more careful about time and determine "dt" (delta-time) values, and animate proportional to ticks elapsed. When ticks doesn't change between renders, dt is zero, and nothing should change. For now this is using a hard-coded list of modules to choose from, you specify the module by name or "none" for no fill_module (solid checker fill). ex: "fill_module=shapes" There's a need for something like fragment color and flag overrides to allow til_module_render() to be treated as more of a brush where the caller gets to specify what colors to use, or if texturing should be allowed. For now, when fill_module=$module is employed, the color determination stuff within checkers doesn't get applied. That will need to be fixed in the future.
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