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ClipVolumeUniform

viewport_lib::resources

Struct ClipVolumeUniform

#[repr(C)]
pub struct ClipVolumeUniform {Show 16 fields
    pub volume_type: u32,
    pub _pad0: [u32; 3],
    pub plane_normal: [f32; 3],
    pub plane_dist: f32,
    pub box_center: [f32; 3],
    pub _pad1: f32,
    pub box_half_extents: [f32; 3],
    pub _pad2: f32,
    pub box_col0: [f32; 3],
    pub _pad3: f32,
    pub box_col1: [f32; 3],
    pub _pad4: f32,
    pub box_col2: [f32; 3],
    pub _pad5: f32,
    pub sphere_center: [f32; 3],
    pub sphere_radius: f32,
}

Expand description

Clip volume uniform — 128 bytes, bound at group 0 binding 6.

Exported for testing (size validation) and for downstream crates that may need to construct the uniform directly (e.g. headless compute tools).

volume_type discriminant selects which clip test is applied in each shader:

0 = None (always passes, zero overhead via early return)
1 = Plane (half-space: dot(p, normal) + dist >= 0)
2 = Box (oriented AABB expressed via rotation columns + half-extents)
3 = Sphere (distance(p, center) <= radius)

Fields§

§volume_type: u32

Discriminant: 0=None, 1=Plane, 2=Box, 3=Sphere.

§_pad0: [u32; 3]

Padding to 16-byte alignment.

§plane_normal: [f32; 3]

Plane half-space normal (world space).

§plane_dist: f32

Plane signed distance from origin.

§box_center: [f32; 3]

Box center in world space.

§_pad1: f32

Padding to maintain 16-byte alignment for the next field.

§box_half_extents: [f32; 3]

Box half-extents.

§_pad2: f32

Padding to maintain 16-byte alignment for the next field.

§box_col0: [f32; 3]

Box local X axis (orientation column 0) in world space.

§_pad3: f32

Padding to maintain 16-byte alignment for the next field.

§box_col1: [f32; 3]

Box local Y axis (orientation column 1) in world space.

§_pad4: f32

Padding to maintain 16-byte alignment for the next field.

§box_col2: [f32; 3]

Box local Z axis (orientation column 2) in world space.

§_pad5: f32

Padding to maintain 16-byte alignment for the next field.

§sphere_center: [f32; 3]

Sphere center in world space.

§sphere_radius: f32

Sphere radius.

Implementations§

impl ClipVolumeUniform

pub fn from_clip_volume(v: &ClipVolume) -> Self

Build a ClipVolumeUniform from a crate::renderer::ClipVolume value.

Trait Implementations§

impl Clone for ClipVolumeUniform

fn clone(&self) -> ClipVolumeUniform

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Zeroable for ClipVolumeUniform

fn zeroed() -> Self

Calls zeroed. Read more

impl Copy for ClipVolumeUniform

impl Pod for ClipVolumeUniform

Auto Trait Implementations§

impl Freeze for ClipVolumeUniform

impl RefUnwindSafe for ClipVolumeUniform

impl Send for ClipVolumeUniform

impl Sync for ClipVolumeUniform

impl Unpin for ClipVolumeUniform

impl UnsafeUnpin for ClipVolumeUniform

impl UnwindSafe for ClipVolumeUniform

Blanket Implementations§

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🔬This is a nightly-only experimental API. (clone_to_uninit)

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