import {
InstancedBufferAttribute,
InstancedMesh,
DataTexture,
PlaneGeometry,
} from "three";
import { Node } from "../graph/types";
import createDensityAccumulatorMaterial from "../materials/createDensityAccumulatorMaterial";
export default function createDensityAccumulatorMesh(
nodes: Node[],
nodeColors: Float32Array,
nodePositionsTexture: DataTexture,
initialCameraDistance: number
) {
const geometry = new PlaneGeometry(2, 2);
const material = createDensityAccumulatorMaterial(
nodePositionsTexture,
initialCameraDistance
);
geometry.setAttribute(
"nodeColor",
new InstancedBufferAttribute(nodeColors, 3)
);
const mesh = new InstancedMesh(geometry, material, nodes.length);
mesh.frustumCulled = false;
return mesh;
}
