43 lines
1.1 KiB
GDScript3
43 lines
1.1 KiB
GDScript3
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@tool
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extends MeshInstance3D
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class_name DebugMesh
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func _ready():
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var mat = StandardMaterial3D.new()
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mesh = ImmediateMesh.new()
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mat.no_depth_test = true
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mat.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
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mat.vertex_color_use_as_albedo = true
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mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
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set_material_override(mat)
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func clear():
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mesh.clear_surfaces()
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func draw_line(begin_pos: Vector3, end_pos: Vector3, color: Color = Color.RED) -> void:
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mesh.surface_begin(Mesh.PRIMITIVE_LINES)
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mesh.surface_set_color(color)
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mesh.surface_add_vertex(begin_pos)
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mesh.surface_add_vertex(end_pos)
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mesh.surface_end()
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func draw_sphere(center: Vector3, radius: float = 1.0, color: Color = Color.RED) -> void:
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var step: int = 30
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var sppi: float = 2 * PI / step
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var axes = [
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[Vector3.UP, Vector3.RIGHT],
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[Vector3.RIGHT, Vector3.FORWARD],
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[Vector3.FORWARD, Vector3.UP]
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]
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for axis in axes:
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mesh.surface_begin(Mesh.PRIMITIVE_LINE_STRIP)
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mesh.surface_set_color(color)
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for i in range(step + 1):
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mesh.surface_add_vertex(center + (axis[0] * radius)
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.rotated(axis[1], sppi * (i % step)))
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mesh.surface_end()
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