| heightmapPC | 用于描述高度贴图的 PaintContext（此高度贴图是构建预览网格的基础）。 |
| previewTexture | 指定是否使用 heightmapPC 中的源或目标渲染纹理来构建网格。 |
| brushTexture | 要预览的画笔纹理。 |
| brushXform | 描述画笔的位置和方向。 |
| proceduralMaterial | 用于渲染预览的材质。 |
| materialPassIndex | 材质渲染通道。 |
使用提供的程序化材质根据高度贴图 PaintContext 来绘制地形画笔预览网格。
heightmapPC 用于构建网格。要确保在网格上渲染预览，heightmapPC 必须包含画笔周围的区域。
为了便于正确变换画笔 UV 空间，此方法将在材质中设置画笔变换。
重要信息：提供的材质必须支持使用 TerrainPreview.cginc 中提供的着色器函数在顶点着色器中进行程序化的网格生成。GetDefaultBrushPreviewMaterial() 提供了材质的默认实现。
另请参阅：TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial 和 PaintContext。
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.