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feat(environment): add painterly skies and living meadows

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This commit is contained in:
Rijad Zuzo
2026-09-05 20:27:09 +02:00
parent 7899d36f03
commit ec16e2f2ca
71 changed files with 2280 additions and 213 deletions
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world/jajce/TerrainRiverRibbon.gd
+53 -7
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@@ -48,6 +48,9 @@ func _build_ribbon(
var uvs := PackedVector2Array()
var indices := PackedInt32Array()
var row_size := width_segments + 1
var pool := $PlungePool as MeshInstance3D
var pool_mesh := pool.mesh as PlaneMesh
var pool_radii := pool_mesh.size * Vector2(pool.scale.x, pool.scale.z) * 0.5
for z_index in segment_count + 1:
var progress := float(z_index) / float(segment_count)
var world_z := lerpf(start_z, end_z, progress)
@@ -61,16 +64,30 @@ func _build_ribbon(
if is_upper
else Watercourse.downstream_half_width(world_z)
)
if not is_upper:
# The outlet continues the existing pool silhouette without drawing a
# second, coplanar sheet on top of the pool's transparent material.
var pool_progress := (world_z - Watercourse.PLUNGE_POOL_CENTER.y) / pool_radii.y
if absf(pool_progress) < 1.0:
var pool_width := pool_radii.x * sqrt(1.0 - pool_progress * pool_progress)
half_width = maxf(half_width, pool_width)
# A stream has one surface across its width. Sampling each bank separately
# wraps the water mesh up the terrain and makes it read as a solid ramp.
var terrain_height := terrain.data.get_height(Vector3(center_x, 0.0, world_z))
if is_nan(terrain_height):
terrain_height = global_position.y
var surface_height := terrain_height + water_offset
var left_x := _shoreline_x(
terrain, center_x, center_x - half_width, world_z, surface_height
)
var right_x := _shoreline_x(
terrain, center_x, center_x + half_width, world_z, surface_height
)
for x_index in width_segments + 1:
var across := float(x_index) / float(width_segments)
var world_x := center_x + lerpf(-half_width, half_width, across)
var world_x := lerpf(left_x, right_x, across)
var world_sample := Vector3(world_x, 0.0, world_z)
var terrain_height := terrain.data.get_height(world_sample)
if is_nan(terrain_height):
terrain_height = global_position.y
vertices.append(
to_local(Vector3(world_sample.x, terrain_height + water_offset, world_sample.z))
)
vertices.append(to_local(Vector3(world_sample.x, surface_height, world_sample.z)))
normals.append(Vector3.UP)
uvs.append(Vector2(across, progress))
@@ -96,8 +113,37 @@ func _build_ribbon(
return mesh
func _shoreline_x(
terrain: Terrain3D, center_x: float, edge_x: float, world_z: float, surface_height: float
) -> float:
var edge_height := terrain.data.get_height(Vector3(edge_x, 0.0, world_z))
if is_nan(edge_height) or edge_height <= surface_height:
return edge_x
# The carved basin is wider on one side. Stop its visible surface at the
# shore instead of extending the pool's ideal ellipse metres under a hill.
var wet_x := center_x
var dry_x := edge_x
for step in range(1, 17):
var sample_x := lerpf(center_x, edge_x, float(step) / 16.0)
var sample_height := terrain.data.get_height(Vector3(sample_x, 0.0, world_z))
if is_nan(sample_height) or sample_height > surface_height:
dry_x = sample_x
break
wet_x = sample_x
for _step in 10:
var sample_x := (wet_x + dry_x) * 0.5
var sample_height := terrain.data.get_height(Vector3(sample_x, 0.0, world_z))
if is_nan(sample_height) or sample_height > surface_height:
dry_x = sample_x
else:
wet_x = sample_x
return wet_x
func _align_pool_to_terrain(terrain: Terrain3D) -> void:
var pool := $PlungePool as MeshInstance3D
var pool_material := pool.mesh.surface_get_material(0) as ShaderMaterial
pool_material.set_shader_parameter("pool_outlet_z", Watercourse.DOWNSTREAM_START_Z)
var pool_sample := Vector3(
Watercourse.PLUNGE_POOL_CENTER.x, 0.0, Watercourse.PLUNGE_POOL_CENTER.y
)