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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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9
packages/ludic.render3d/mesh.ludic
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@ -148,3 +148,12 @@ function mesh_instance_buffer(m: Mesh, first_attr: int, floats_per: int, data: p
gl_bind_vertex_array(0)
return b
}
# release a mesh's GL objects (a mesh this package built for something being thrown away)
function mesh_free(m: Mesh) -> void {
if m == null { return }
let ids = gl_scratch()
if m.vbo != 0 { ids[0] = m.vbo; gl_delete_buffers(1, ids); m.vbo = 0 }
if m.ebo != 0 { ids[0] = m.ebo; gl_delete_buffers(1, ids); m.ebo = 0 }
if m.vao != 0 { ids[0] = m.vao; gl_delete_vertex_arrays(1, ids); m.vao = 0 }
}