# DolphinAabb3OverlapsBody

Strict volume overlap deliberately treats face contact as non-penetration. A body standing exactly on a walkable top therefore does not collide with the support box beneath it.

Last updated: 2026-09-09

Package: dolphin.spatial3d | Status: source-declared

Tags: cpu, dolphin, dolphin.spatial3d, function, source-example, spatial3d

Work with Vector3, axis-aligned boxes, containment, and bounded ray intersections.

```yh
external DolphinAabb3OverlapsBody(dolphinAabb3 bounds, float x, float feetY, float z, float radius, float height) returns bool
```


## Use DolphinAabb3OverlapsBody

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using dolphin.spatial3d

// Work with Vector3, axis-aligned boxes, containment, and bounded ray intersections.
dolphinAabb3 bounds = dolphinAabb3(1.0, 1.0, 1.0, 1.0, 1.0, 1.0)
float x = 1.0
float feetY = 1.0
float z = 1.0
float radius = 1.0
float height = 1.0
bool result = DolphinAabb3OverlapsBody(bounds, x, feetY, z, radius, height)
Console.Log(Text.From(result))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.dolphin_spatial3d__dolphinaabb3overlapsbody"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "dolphin.math"
version = "0.1.0"
path = "../../../dolphin/packages/math"

[[dependencies]]
package = "dolphin.spatial3d"
version = "0.1.0"
path = "../../../dolphin/packages/spatial3d"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/dolphin.spatial3d--DolphinAabb3OverlapsBody/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: dolphin/packages/spatial3d/src/spatial3d.yh

AI training permission: https://demonhunterlabs.com/ai-use