Function getTextureSize

src/utils.ts:803–821

(numSplats: number)

// This is done so the entire set of splats can be covered by min/max coords across
// each dimension.
export function getTextureSize(numSplats: number): {
  width: number;
  height: number;
  depth: number;
  maxSplats: number;
} {
  // Compute a texture array size that is large enough to fit numSplats.
  // The width is always 2048, the height sized to fit the splats but no larger than 2048.
  // The depth is the number of layers needed to fit the splats.
  // maxSplats is computed as the new total available splats that can be stored.
  const width = SPLAT_TEX_WIDTH;
  const height = Math.max(
    SPLAT_TEX_MIN_HEIGHT,
    Math.min(SPLAT_TEX_HEIGHT, Math.ceil(numSplats / width)),
  );
  const depth = Math.ceil(numSplats / (width * height));
  const maxSplats = width * height * depth;
  return { width, height, depth, maxSplats };
}

export function computeMaxSplats(numSplats: number): number {
  // Compute the size of a Gsplat array texture (2048x2048xD) that can fit