Module plexus::generate
[−]
[src]
Mesh generation from primitives like cubes and spheres.
This module provides unit primitives that can be used to form complex iterator expressions to generate meshes via a stream of topology and geometry. This data can be collected into simple buffers for rendering or a graph (half-edge) for further manipulation.
Iterator expressions begin with a unit primitive and manipulate its components like vertices, lines, and polygons. Generation and decomposition operations are exposed via traits.
Examples
Generating position and index buffers for a scaled sphere:
use nalgebra::Point3; use plexus::generate::sphere::UVSphere; use plexus::prelude::*; let sphere = UVSphere::<f32>::with_unit_radius(16, 16); let positions: Vec<_> = sphere .vertices_with_position() // Generate the unique set of positional vertices. .map(|position| -> Point3<_> { position.into() }) // Convert into a nalgebra type. .map(|position| position * 10.0) // Scale the positions by 10. .collect(); let indeces: Vec<_> = sphere .polygons_with_index() // Generate polygons indexing the unique set of vertices. .triangulate() // Decompose the polygons into triangles. .vertices() // Decompose the triangles into vertices (indeces). .collect();
Generating position and index buffers using an indexer:
use plexus::generate::LruIndexer; use plexus::generate::cube::Cube; use plexus::prelude::*; let (indeces, positions) = Cube::<f32>::with_unit_width() .polygons_with_position() .triangulate() .index_vertices(LruIndexer::default());
Modules
| cube | |
| sphere |
Structs
| HashIndexer | |
| Line | |
| LruIndexer | |
| Quad | |
| Triangle |
Enums
| Polygon |