You should always specify the precision of floating point variables when writing custom shaders.
编写自定义着色器时，您应该始终指定浮点变量的精度。
You should always specify the precision of floating point variables when writing custom shaders.
写自定义的着色器时，应该指定浮点数精度。
However, the peripheral location of these phantoms and other phantom variables is also responsible for a measurable degradation in accuracy and precision.
然而，这些周边位置幻像幻影和其他变数还负责一个可以衡量的退化的准确度和精密度。
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