 'aqua'])
        const maxZ = 10
        const view = new TwoDraw(model, {
            div: 'modelDiv',
            patchSize: 2,
            drawOptions: { // Patches only model:
                patchesColor: p => patchColors.scaleColor(p.zpos, -maxZ, maxZ),
            }
        })
        view.setPatchesSmoothing(true) // make water smoother

        const anim = new Animator(
            () => {
                model.step()
                view.draw()
            },
            500, // how many steps
 