kichikuou cb0b969492 Flat: Add particle emitter support ...

This implements rendering of FLAT_LIB_EMITTER libraries: timed spawning,
per-particle motion, fade, and 3-axis rotation.

For each visible emitter, render_flat_emitter() builds an emitter base
matrix from the ancestor key stack so particles follow their parent
timelines. parent_key_mode chooses between filtering ancestor properties
via the emitter's inherit_* flags (SELECTIVE) and using ancestor poses
wholesale (ANCESTOR_CURRENT / ANCESTOR_AT_BIRTH). For each birth frame
in the lifetime window, parts_flat_foreach_emitter_particle() reseeds
the RNG from (rand_seed, birth_frame), making particles deterministic
across re-renders, and yields each particle's pose, which is composed
with the emitter transform and submitted as a quad through the standard
parts texture pipeline.

2026-05-19 07:12:11 +09:00

..

libsys4 @ ed74c9e48e

Flat: Add particle emitter support

2026-05-19 07:12:11 +09:00

cglm.wrap

TapirEngine: Proper collision detection

2024-09-30 09:11:54 +09:00