| material | 用于渲染的材质。 |
| texture | 材质纹理覆盖。 |
| index | 材质索引。 |
Set the material for the canvas renderer. If a texture is specified then it will be used as the 'MainTex' instead of the material's 'MainTex'. Additional resources: CanvasRenderer.materialCount, CanvasRenderer.SetTexture.