| mesh | 要绘制的 Mesh。 |
| submeshIndex | Which subset of the mesh to draw. This only applies to meshes that are composed of several materials. |
| material | 要使用的 Material。 |
| shaderPass | 要使用着色器的哪个通道，或选择 -1，表示渲染所有通道。 |
| matrices | 对象变换矩阵的数组。 |
| count | 要绘制的实例数。 |
| properties | Additional Material properties to apply onto the Material just before this Mesh is drawn. See MaterialPropertyBlock. |
Adds a "draw mesh with instancing" command.
The mesh will be just drawn once, it won't be per-pixel lit and will not cast or receive realtime shadows.
如果 Material.enableInstancing 为 false，该命令不会立即失败并抛出异常，但如果检测到此类情况，则会记录错误并在每次执行命令时跳过渲染。
如果当前平台不支持此 API（即，如果 GPU 实例化不可用），则会抛出 InvalidOperationException。请参阅 SystemInfo.supportsInstancing。