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layout: stdlib-reference
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# IsSphereHit

## Description





## Signature 

<pre>
<span class="code_keyword">bool</span> <a href="isspherehit-028.html">IsSphereHit</a>();

</pre>

## Availability and Requirements

Defined for the following targets:

#### hlsl
Available in stages: `closesthit`, `anyhit`.

#### cuda
Available in stages: `closesthit`, `anyhit`.

#### spirv
Available in stages: `closesthit`, `anyhit`.

Requires capability: `spvRayTracingKHR`.