docs: update RHI API docs
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@@ -4,14 +4,22 @@
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virtual void DrawIndexed(uint32_t indexCount, uint32_t instanceCount = 1, uint32_t startIndex = 0, int32_t baseVertex = 0, uint32_t startInstance = 0) = 0;
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```
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绘制索引图元。
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执行索引绘制调用。通过索引缓冲区从顶点缓冲区中选择顶点绘制图元,允许顶点复用。
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**参数:**
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- `indexCount` - 索引数量
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- `instanceCount` - 实例数量(默认1)
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- `startIndex` - 起始索引
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- `baseVertex` - 基础顶点索引
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- `startInstance` - 起始实例索引
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- `instanceCount` - 实例数量(默认 1)
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- `startIndex` - 起始索引偏移(默认 0)
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- `baseVertex` - 基础顶点偏移(默认 0)
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- `startInstance` - 起始实例偏移(默认 0)
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**返回:** `void`
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**异常:** 无
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**线程安全:** ❌
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**复杂度:** O(indexCount * instanceCount)
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**示例:**
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@@ -22,3 +30,5 @@ cmdList->DrawIndexed(36); // 绘制36个索引
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## 相关文档
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- [RHICommandList 总览](command-list.md) - 返回类总览
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- [Draw](draw.md) - 绘制
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- [SetIndexBuffer](set-index-buffer.md) - 设置索引缓冲
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