# simd_uchar3 A vector of three 8-bit unsigned integer elements. ``` typealias simd_uchar3 = SIMD3 ``` ## Topics ### Functions to Create Three-Element Vectors From Other Vectors [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-4qkxz) Returns a new vector from the specified two-element vector, and other elements set to zero. [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-4nmxq) Returns a new vector from the specified vector. [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-45nsd) Returns a new vector by truncating the specified four-element vector. [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-3sucp) Returns a new vector by truncating the specified eight-element vector. [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-90ge7) Returns a new vector by truncating the specified sixteen-element vector. [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-38lno) Returns a new vector by truncating the specified thirty two-element vector. [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-3p7i8) Returns a new vector by truncating the specified sixty four-element vector. [`simd_make_uchar3_undef(_:)`](/documentation/simd/simd_make_uchar3_undef(_:)-99t25) Returns a new vector from the specified two-element vector, and other elements undefined. ### Functions to Create Three-Element Vectors From Scalar Values [`simd_make_uchar3(_:)`](/documentation/simd/simd_make_uchar3(_:)-bybh) Returns a new vector with the first element set to a scalar value, and other elements set to zero. [`simd_make_uchar3(_:_:_:)`](/documentation/simd/simd_make_uchar3(_:_:_:)) Returns a new vector from the specified scalar values. [`vector3`](/documentation/simd/vector3-9qwfg) Returns a new vector from the specified scalar values. [`simd_make_uchar3_undef(_:)`](/documentation/simd/simd_make_uchar3_undef(_:)-562ub) Returns a new vector with the first element set to a scalar value, and other elements undefined. ### Functions to Create Three-Element Vectors From Combinations of Vectors and Scalar Values [`simd_make_uchar3(_:_:)`](/documentation/simd/simd_make_uchar3(_:_:)-5tgih) Returns a new vector from a vector and a scalar value. [`vector3`](/documentation/simd/vector3-9kx6s) Returns a new vector from a vector and a scalar value. [`simd_make_uchar3(_:_:)`](/documentation/simd/simd_make_uchar3(_:_:)-2m5x7) Returns a new vector from a scalar value and a vector. ### Functions to Create Three-Element Vectors From Vectors of Other Types [`simd_uchar`](/documentation/simd/simd_uchar-8xokr) Returns a new vector from the specified vector of 8-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xyej) Returns a new vector from the specified vector of 8-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xtjf) Returns a new vector from the specified vector of 16-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8y3bf) Returns a new vector from the specified vector of 16-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xmh3) Returns a new vector from the specified vector of 32-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xwnb) Returns a new vector from the specified vector of 32-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xnn5) Returns a new vector from the specified vector of 64-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xxdd) Returns a new vector from the specified vector of 64-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-8xzfl) Returns a new vector from the specified vector of 32-bit, floating-point elements. [`simd_uchar`](/documentation/simd/simd_uchar-8y001) Returns a new vector from the specified vector of 64-bit, floating-point elements. ### Functions to Perform Saturating Conversion From Vectors of Other Types [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1x3x1) Returns a new vector from the specified vector of 8-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1xdsl) Returns a new vector from the specified vector of 8-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1x905) Returns a new vector from the specified vector of 16-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1xis5) Returns a new vector from the specified vector of 16-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1x225) Returns a new vector from the specified vector of 32-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1xc6l) Returns a new vector from the specified vector of 32-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1x3m3) Returns a new vector from the specified vector of 64-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1xdor) Returns a new vector from the specified vector of 64-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1xfdz) Returns a new vector from the specified vector of 32-bit, floating point elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-1xfyj) Returns a new vector from the specified vector of 32-bit, floating point elements. ### Common Functions [`simd_clamp(_:_:_:)`](/documentation/simd/simd_clamp(_:_:_:)-6h8i3) Returns each element in a vector clamped to a specified range. [`simd_equal(_:_:)`](/documentation/simd/simd_equal(_:_:)-8iga0) Returns true if every element in a vector is exactly equal to the corresponding element in a second vector, and otherwise returns false. ### Reduce Functions [`simd_reduce_min(_:)`](/documentation/simd/simd_reduce_min(_:)-46bd5) Returns the miniumum value in a vector. [`simd_reduce_max(_:)`](/documentation/simd/simd_reduce_max(_:)-4gzsh) Returns the maximum value in a vector. [`simd_reduce_add(_:)`](/documentation/simd/simd_reduce_add(_:)-2v6nn) Returns the sum of all elements in a vector. ### Extrema Functions [`simd_min(_:_:)`](/documentation/simd/simd_min(_:_:)-8h62y) Returns the minimum value of each element in a vector. [`simd_max(_:_:)`](/documentation/simd/simd_max(_:_:)-8ylny) Returns the maximum value of each element in a vector. ### Logic and Bitwise Functions [`simd_any(_:)`](/documentation/simd/simd_any(_:)-69k4o) [`simd_all(_:)`](/documentation/simd/simd_all(_:)-1aceu) [`simd_bitselect(_:_:_:)`](/documentation/simd/simd_bitselect(_:_:_:)-2syfj) Returns a vector that contains elements from either the first or second parameter, based on the corresponding element in the third parameter. ### Alternative Type Alias [`vector_uchar3`](/documentation/simd/vector_uchar3) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)