[Home](./index.md) > [@three3d/volume](./volume.md) > [ExampleVolumeMaterial\_PerlinOptions](./volume.examplevolumematerial_perlinoptions.md) > [steps](./volume.examplevolumematerial_perlinoptions.steps.md) ## ExampleVolumeMaterial\_PerlinOptions.steps property 体积材质渲染的采样数 **Signature:** ```typescript steps?: number | null; ```