Constants

const CENTER: number

Option for splitting each BVH node down the center of the longest axis of the bounds.

This is the fastest construction option and will yield a good, performant bounds.

const AVERAGE: number

Option for splitting each BVH node at the average point along the longest axis for all triangle centroids in the bounds.

This strategy may be better than CENTER with some geometry.

const SAH: number

Option to use a Surface Area Heuristic to split the bounds more optimally. This SAH implementation tests 32 discrete splits in each node along each axis to determine which split is the lowest cost.

This is the slowest construction option but will yield the best bounds of the three options and use the least memory.

const NOT_INTERSECTED: number

Indicates the shape did not intersect the given bounding box.

const INTERSECTED: number

Indicates the shape did intersect the given bounding box.

const CONTAINED: number

Indicate the shape entirely contains the given bounding box.

const bvh_distance_functions: string

Set of shader functions used for interacting with the packed BVH in a shader and sampling VertexAttributeTextures. Provides distance query functions. See src/webgl/glsl for full implementations and declarations.

Accessed as BVHShaderGLSL.bvh_distance_functions.

const bvh_ray_functions: string

Set of shader functions used for interacting with the packed BVH in a shader and sampling VertexAttributeTextures. Provides ray intersection functions. See src/webgl/glsl for full implementations and declarations.

Accessed as BVHShaderGLSL.bvh_ray_functions.

const bvh_struct_definitions: string

Set of shader structs and defined constants used for interacting with the packed BVH in a shader. See src/webgl/glsl/bvh_struct_definitions.glsl.js for full implementations and declarations.

Accessed as BVHShaderGLSL.bvh_struct_definitions.

const common_functions: string

Set of shader functions used for interacting with the packed BVH in a shader and sampling VertexAttributeTextures. Provides common utility functions including texelFetch1D. See src/webgl/glsl for full implementations and declarations.

Accessed as BVHShaderGLSL.common_functions.