transform_mesh: Apply a 4x4 transformation matrix to a mesh

In scimesh: Headless Publication-Quality 3D Mesh Rendering Engine

Apply a 4x4 transformation matrix to a mesh

Description

Transforms all vertex positions in a mesh by a 4x4 homogeneous matrix (applied as M * (x, y, z, 1)^T). Vertex colors and normals are untouched.

Usage

transform_mesh(mesh, matrix)

Arguments

mesh	A mesh descriptor list with vertices and triangles, as returned by render_mesh() or built by scimesh_generate_multi_spheres() etc.
matrix	A 4x4 numeric matrix.

Value

A new mesh descriptor list with transformed vertices.

Examples

mesh <- generate_cuboid(c(0, 0, 0), c(1, 1, 1))
mat <- diag(4)
mat[1:3, 4] <- c(2, 3, 4)
translated <- transform_mesh(mesh, mat)
translated$vertices[1, ]

scimesh documentation built on Aug. 9, 2026, 9:07 a.m.