1.3.72
 
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Data Fields
helios::BVHNode Struct Reference

BVH node for GPU traversal (48 bytes, flat array) More...

#include <BVHBuilder.h>

Data Fields

float aabb_min [3]
 AABB min corner (12 bytes)
 
float aabb_max [3]
 AABB max corner (12 bytes)
 
uint32_t left_child
 Left child index (or first_prim if leaf)
 
uint32_t right_child
 Right child index (UINT32_MAX if leaf)
 
uint32_t prim_count
 Primitive count (0 = internal node, >0 = leaf)
 
uint32_t prim_type
 Primitive type (0-5) for leaf nodes.
 
uint32_t first_prim
 Index of first primitive in leaf.
 
uint32_t split_axis
 Split axis for internal nodes (0=x, 1=y, 2=z)
 

Detailed Description

BVH node for GPU traversal (48 bytes, flat array)

Flat array representation for efficient GPU traversal. Nodes reference children via array indices (not pointers). Leaf nodes contain homogeneous primitive types.

Definition at line 33 of file BVHBuilder.h.

Field Documentation

◆ aabb_max

float helios::BVHNode::aabb_max[3]

AABB max corner (12 bytes)

Definition at line 35 of file BVHBuilder.h.

◆ aabb_min

float helios::BVHNode::aabb_min[3]

AABB min corner (12 bytes)

Definition at line 34 of file BVHBuilder.h.

◆ first_prim

uint32_t helios::BVHNode::first_prim

Index of first primitive in leaf.

Definition at line 40 of file BVHBuilder.h.

◆ left_child

uint32_t helios::BVHNode::left_child

Left child index (or first_prim if leaf)

Definition at line 36 of file BVHBuilder.h.

◆ prim_count

uint32_t helios::BVHNode::prim_count

Primitive count (0 = internal node, >0 = leaf)

Definition at line 38 of file BVHBuilder.h.

◆ prim_type

uint32_t helios::BVHNode::prim_type

Primitive type (0-5) for leaf nodes.

Definition at line 39 of file BVHBuilder.h.

◆ right_child

uint32_t helios::BVHNode::right_child

Right child index (UINT32_MAX if leaf)

Definition at line 37 of file BVHBuilder.h.

◆ split_axis

uint32_t helios::BVHNode::split_axis

Split axis for internal nodes (0=x, 1=y, 2=z)

Definition at line 41 of file BVHBuilder.h.

The documentation for this struct was generated from the following file: