Render bathymetric sonar surface
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@@ -1,25 +1,24 @@
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class_name BathymetricSonarRenderer
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extends SubViewport
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const SonarMaterial = preload("res://game/domain/sonar/sonar_material.gd")
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const SonarSample = preload("res://game/domain/sonar/sonar_sample.gd")
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const SonarScan = preload("res://game/domain/sonar/sonar_scan.gd")
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const COLOR_DEEP := Color("173f91")
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const COLOR_LOW := Color("168fc1")
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const COLOR_MIDDLE := Color("36b979")
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const COLOR_HIGH := Color("d7d93d")
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const COLOR_PEAK := Color("ee5734")
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const COLOR_METAL := Color("ff6b22")
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const SonarReliefMeshBuilder = preload(
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"res://game/presentation/sonar/sonar_relief_mesh_builder.gd"
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)
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var _current_mesh_instance: MeshInstance3D
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var _current_grid_instance: MeshInstance3D
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var _previous_mesh_instance: MeshInstance3D
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var _contact_root: Node3D
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var _idle_prompt: Label
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var _current_material: StandardMaterial3D
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var _grid_material: StandardMaterial3D
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var _previous_material: StandardMaterial3D
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var _current_scan_id: StringName = &""
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var _previous_scan_id: StringName = &""
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var _built_current_rows := 0
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var _built_current_triangle_count := 0
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var _built_current_grid_segment_count := 0
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func _ready() -> void:
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@@ -38,10 +37,14 @@ func present(
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) -> void:
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if current_scan == null:
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return
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_idle_prompt.visible = false
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if current_scan.scan_id != _current_scan_id:
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_current_scan_id = current_scan.scan_id
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_current_mesh_instance.mesh = ArrayMesh.new()
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_current_grid_instance.mesh = ArrayMesh.new()
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_built_current_rows = 0
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_built_current_triangle_count = 0
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_built_current_grid_segment_count = 0
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_rebuild_contacts(current_scan)
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_build_current_rows(current_scan, clampi(visible_rows, 0, current_scan.samples.rows))
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_update_contact_visibility(current_scan, visible_rows)
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@@ -54,7 +57,7 @@ func present(
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_previous_mesh_instance.visible = previous_opacity > 0.0
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if previous_scan.scan_id != _previous_scan_id:
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_previous_scan_id = previous_scan.scan_id
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_previous_mesh_instance.mesh = _build_full_mesh(
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_previous_mesh_instance.mesh = SonarReliefMeshBuilder.build_full_mesh(
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previous_scan,
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_previous_material
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)
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@@ -69,6 +72,18 @@ func built_row_count() -> int:
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return _built_current_rows
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func built_triangle_count() -> int:
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return _built_current_triangle_count
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func built_grid_segment_count() -> int:
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return _built_current_grid_segment_count
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func idle_prompt_visible() -> bool:
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return _idle_prompt != null and _idle_prompt.visible
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func visible_contact_count() -> int:
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var count := 0
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for child: Node in _contact_root.get_children():
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@@ -89,11 +104,16 @@ func _build_render_world() -> void:
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add_child(environment_node)
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_current_material = _relief_material(false)
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_grid_material = _surface_grid_material()
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_previous_material = _relief_material(true)
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_current_mesh_instance = MeshInstance3D.new()
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_current_mesh_instance.name = "CurrentRelief"
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_current_mesh_instance.mesh = ArrayMesh.new()
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add_child(_current_mesh_instance)
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_current_grid_instance = MeshInstance3D.new()
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_current_grid_instance.name = "CurrentReliefGrid"
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_current_grid_instance.mesh = ArrayMesh.new()
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add_child(_current_grid_instance)
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_previous_mesh_instance = MeshInstance3D.new()
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_previous_mesh_instance.name = "PreviousRelief"
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_previous_mesh_instance.mesh = ArrayMesh.new()
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@@ -112,7 +132,7 @@ func _build_render_world() -> void:
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camera.far = 240.0
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camera.position = Vector3(0.0, 65.0, -30.0)
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add_child(camera)
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camera.look_at(Vector3(0.0, -10.0, 60.0), Vector3.UP)
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camera.look_at(Vector3(0.0, -38.0, 58.0), Vector3.UP)
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camera.current = true
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var key_light := DirectionalLight3D.new()
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@@ -124,6 +144,22 @@ func _build_render_world() -> void:
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fill_light.rotation_degrees = Vector3(-28.0, 145.0, 18.0)
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fill_light.light_energy = 0.38
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add_child(fill_light)
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_build_idle_prompt()
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func _build_idle_prompt() -> void:
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_idle_prompt = Label.new()
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_idle_prompt.name = "IdlePrompt"
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_idle_prompt.position = Vector2(180.0, 238.0)
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_idle_prompt.size = Vector2(600.0, 64.0)
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_idle_prompt.text = "SONAR PRÊT · F POUR ÉMETTRE"
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_idle_prompt.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
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_idle_prompt.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
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_idle_prompt.add_theme_font_size_override("font_size", 26)
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_idle_prompt.add_theme_color_override("font_color", Color(0.38, 0.88, 0.86))
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_idle_prompt.add_theme_color_override("font_outline_color", Color(0.0, 0.04, 0.05))
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_idle_prompt.add_theme_constant_override("outline_size", 6)
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add_child(_idle_prompt)
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func _relief_material(transparent: bool) -> StandardMaterial3D:
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@@ -137,108 +173,31 @@ func _relief_material(transparent: bool) -> StandardMaterial3D:
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return material
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func _surface_grid_material() -> StandardMaterial3D:
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var material := StandardMaterial3D.new()
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material.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
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material.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
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material.albedo_color = Color(0.32, 0.95, 0.91, 0.34)
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material.emission_enabled = true
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material.emission = Color(0.18, 0.78, 0.76)
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material.emission_energy_multiplier = 1.35
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return material
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func _build_current_rows(scan: SonarScan, visible_rows: int) -> void:
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var mesh := _current_mesh_instance.mesh as ArrayMesh
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var grid_mesh := _current_grid_instance.mesh as ArrayMesh
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while _built_current_rows < visible_rows:
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if _built_current_rows > 0:
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_add_row_band(mesh, scan, _built_current_rows, _current_material)
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_built_current_triangle_count += SonarReliefMeshBuilder.add_row_band(
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mesh, scan, _built_current_rows, _current_material
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)
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_built_current_grid_segment_count += SonarReliefMeshBuilder.add_grid_band(
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grid_mesh, scan, _built_current_rows, _grid_material
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)
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_built_current_rows += 1
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func _build_full_mesh(
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scan: SonarScan,
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material: StandardMaterial3D
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) -> ArrayMesh:
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var mesh := ArrayMesh.new()
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for row in range(1, scan.samples.rows):
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_add_row_band(mesh, scan, row, material)
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return mesh
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func _add_row_band(
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mesh: ArrayMesh,
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scan: SonarScan,
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row: int,
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material: StandardMaterial3D
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) -> void:
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var vertices := PackedVector3Array()
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var normals := PackedVector3Array()
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var colors := PackedColorArray()
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for column in range(scan.samples.columns - 1):
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var top_left: SonarSample = scan.samples.sample_at(row - 1, column)
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var top_right: SonarSample = scan.samples.sample_at(row - 1, column + 1)
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var bottom_left: SonarSample = scan.samples.sample_at(row, column)
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var bottom_right: SonarSample = scan.samples.sample_at(row, column + 1)
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if not (
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top_left.observed
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and top_right.observed
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and bottom_left.observed
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and bottom_right.observed
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):
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continue
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_append_triangle(
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vertices, normals, colors, scan,
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top_left, bottom_left, top_right
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)
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_append_triangle(
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vertices, normals, colors, scan,
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top_right, bottom_left, bottom_right
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)
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if vertices.is_empty():
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return
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var arrays: Array = []
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arrays.resize(Mesh.ARRAY_MAX)
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arrays[Mesh.ARRAY_VERTEX] = vertices
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arrays[Mesh.ARRAY_NORMAL] = normals
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arrays[Mesh.ARRAY_COLOR] = colors
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mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, arrays)
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mesh.surface_set_material(mesh.get_surface_count() - 1, material)
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func _append_triangle(
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vertices: PackedVector3Array,
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normals: PackedVector3Array,
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colors: PackedColorArray,
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scan: SonarScan,
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a: SonarSample,
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b: SonarSample,
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c: SonarSample
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) -> void:
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for sample: SonarSample in [a, b, c]:
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vertices.append(sample.position_m)
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normals.append(sample.normal)
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colors.append(_sample_color(scan, sample))
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func _sample_color(scan: SonarScan, sample: SonarSample) -> Color:
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if sample.material == SonarMaterial.Value.METAL:
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return COLOR_METAL
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var height := inverse_lerp(
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scan.minimum_elevation_m,
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scan.maximum_elevation_m,
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sample.elevation_m
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)
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var color: Color
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if height <= 0.28:
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color = COLOR_DEEP.lerp(COLOR_LOW, height / 0.28)
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elif height <= 0.52:
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color = COLOR_LOW.lerp(COLOR_MIDDLE, (height - 0.28) / 0.24)
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elif height <= 0.76:
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color = COLOR_MIDDLE.lerp(COLOR_HIGH, (height - 0.52) / 0.24)
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else:
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color = COLOR_HIGH.lerp(COLOR_PEAK, (height - 0.76) / 0.24)
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var light_direction := Vector3(-0.35, 0.82, -0.45).normalized()
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var slope_light := clampf(sample.normal.dot(light_direction), 0.0, 1.0)
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var shade := lerpf(0.68, 1.0, slope_light)
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var lit_color := color.lerp(Color.WHITE, sample.intensity * 0.08)
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return Color(
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lit_color.r * shade,
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lit_color.g * shade,
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lit_color.b * shade,
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lit_color.a
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)
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func _rebuild_contacts(scan: SonarScan) -> void:
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for child: Node in _contact_root.get_children():
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_contact_root.remove_child(child)
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@@ -253,9 +212,9 @@ func _rebuild_contacts(scan: SonarScan) -> void:
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marker.set_meta("forward_distance_m", contact.center_m.z)
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var material := StandardMaterial3D.new()
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material.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
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material.albedo_color = COLOR_METAL
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material.albedo_color = SonarReliefMeshBuilder.COLOR_METAL
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material.emission_enabled = true
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material.emission = COLOR_METAL
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material.emission = SonarReliefMeshBuilder.COLOR_METAL
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material.emission_energy_multiplier = 4.0
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marker.material_override = material
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_contact_root.add_child(marker)
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