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feat(render3d): replace the world at run time, water bodies, terrain_sea

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terrain_reload/terrain_unload release one map's height field, survey, photograph
and patch bounds and generate another at any TERRAIN_HALF; scatter_clear_all
(with streams), actor_clear_all, col_reset and mesh_free empty the scene;
water_body_add/water_bodies_clear draw several still-water planes with one
reflecting; terrain_sea separates the coast's sea level from the carved lake's,
and grass keeps off both. Fixes CDLOD patch bounds for TERRAIN_HALF != 4096 and
water_init leaking a mesh and program per call. examples/rendering/reload.ludic.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-13 00:03:40 +03:00
parent 70bda0c4df
commit a4a3d75cd9
13 changed files with 308 additions and 19 deletions
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4
packages/ludic.render3d/grass.ludic
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@ -146,6 +146,10 @@ function grass_draw() -> void {
var lake = fl(-100000.0)
if ter_lake_ex != 0 { lake = ter_lake_level }
u_f(gl_uniform(p, "u_lake_level"), lake)
var sea = lake
if ter_sea_set { sea = ter_sea_level }
u_f(gl_uniform(p, "u_sea_level"), sea)
u_f4(gl_uniform(p, "u_lake"), ter_lake_cx, ter_lake_cz, ter_lake_ex, ter_lake_ez)
u_f(gl_uniform(p, "u_snow_line"), ter_snow_line)
sky_bind_lighting(p)
shadow_bind(p)