The key is that the SPU has several conditional instructions, such as selb, shufb, and the bit operations, which allow conditional operations to occur without branching.

问题的关键是 SPU 有几个条件指令，例如 selb、 shufb 和位操作，它们可以不用分支就能实现条件操作。

youdao

Instructions cover approaches to dealing with side branching, how to alter the line of the trunk, and how to sculpt pine trees, azaleas, conifers, broad-leaved evergreens, and deciduous trees.

说明包括处理与侧分支的方法，如何改变干线，以及如何塑造松树，杜鹃花，针叶林，阔叶常绿树，落叶树。

youdao

OK. Now. Having added this in, I have branching instructions.

好，现在我们已经讲了这些内容，讲过了分支指令。

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