Method create_mesh

native/shared/src/models.rs:273–307

Create a mesh from raw float data passed from TS. vertex_data layout: [x,y,z, nx,ny,nz, r,g,b,a, u,v] per vertex (12 floats each)

(&mut self, vertex_data: &[f32], index_data: &[u32])

    /// Create a mesh from raw float data passed from TS.
    /// vertex_data layout: [x,y,z, nx,ny,nz, r,g,b,a, u,v] per vertex (12 floats each)
    pub fn create_mesh(&mut self, vertex_data: &[f32], index_data: &[u32]) -> f64 {
        let floats_per_vert = 12;
        let vert_count = vertex_data.len() / floats_per_vert;
        if vert_count == 0 { return 0.0; }

        let mut vertices = Vec::with_capacity(vert_count);
        let mut bbox_min = [f32::MAX; 3];
        let mut bbox_max = [f32::MIN; 3];

        for i in 0..vert_count {
            let o = i * floats_per_vert;
            let pos = [vertex_data[o], vertex_data[o+1], vertex_data[o+2]];
            for k in 0..3 {
                if pos[k] < bbox_min[k] { bbox_min[k] = pos[k]; }
                if pos[k] > bbox_max[k] { bbox_max[k] = pos[k]; }
            }
            vertices.push(Vertex3D {
                position: pos,
                normal: [vertex_data[o+3], vertex_data[o+4], vertex_data[o+5]],
                color: [vertex_data[o+6], vertex_data[o+7], vertex_data[o+8], vertex_data[o+9]],
                uv: [vertex_data[o+10], vertex_data[o+11]],
                joints: [0.0; 4],
                weights: [0.0; 4],
                tangent: [0.0; 4],
            });
        }

        let indices = index_data.to_vec();
        let model = ModelData {
            meshes: vec![MeshData { vertices, indices, texture_idx: None, normal_texture_idx: None, metallic_roughness_texture_idx: None, emissive_texture_idx: None, occlusion_texture_idx: None, metallic_factor: 0.0, roughness_factor: 1.0, emissive_factor: [0.0; 3], alpha_cutoff: 0.0 }],
            bbox_min,
            bbox_max,
        };
        self.models.alloc(model)
    }

    /// Q9: Generate a ribbon mesh along a Catmull-Rom spline. Used by the
    /// editor's river tool. `points` is flat [x0,y0,z0, x1,y1,z1, ...],