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[wgsl]: Remove scalar overloads of faceForward and reflect #1914

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Jul 7, 2021
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[wgsl]: Remove scalar overloads of faceForward and reflect #1914

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12 changes: 5 additions & 7 deletions wgsl/index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -6837,10 +6837,9 @@ That's not a full user-defined function declaration.
(GLSLstd450Exp2)

<tr algorithm="faceForward">
<td>|T| is [FLOATING]
<td>|T| is vec|N|&lt;f32&gt;
<td class="nowrap">`faceForward(`|e1|`:` |T| `, `|e2|`:` |T| `, `|e3|`:` |T| `) -> ` |T|
<td>Returns |e1| if `dot(`|e2|`,`|e3|`)` is negative, and `-`|e1| otherwise.
[=Component-wise=] when |T| is a vector.
(GLSLstd450FaceForward)

<tr algorithm="floor">
Expand Down Expand Up @@ -6965,19 +6964,18 @@ That's not a full user-defined function declaration.
(GLSLstd450Pow)

<tr algorithm="reflect">
<td>|T| is [FLOATING]
<td>|T| is vec|N|&lt;f32&gt;
<td class="nowrap">`reflect(`|e1|`:` |T| `, `|e2|`:` |T| `) -> ` |T|
<td>For the incident vector |e1| and surface orientation |e2|, returns the reflection direction
|e1|`-2*dot(`|e2|`,`|e1|`)*`|e2|.
[=Component-wise=] when |T| is a vector.
(GLSLstd450Reflect)

<tr algorithm="refract">
<td>|T| is vec|N|&lt;f32&gt;<br>I is f32
<td class="nowrap">`refract(`|e1|`:` |T| `, `|e2|`:` |T| `, `|e3|`:` |I| `) -> ` |T|
<td>For the incident vector |e1| and surface normal |e2|, and the ratio of indices of refraction |e3|,
let `k = 1.0 - `|e3|` * `|e3|` * (1.0 - dot(`|e2|`, `|e1|`) * dot(`|e2|`, `|e1|`))`. If `k < 0.0`, returns the
refraction vector 0.0, otherwise return the refraction vector
<td>For the incident vector |e1| and surface normal |e2|, and the ratio of indices of refraction |e3|,
let `k = 1.0 - `|e3|` * `|e3|` * (1.0 - dot(`|e2|`, `|e1|`) * dot(`|e2|`, `|e1|`))`. If `k < 0.0`, returns the
refraction vector 0.0, otherwise return the refraction vector
|e3|` * `|e1|` - (`|e3|` * dot(`|e2|`, `|e1|`) + sqrt(k)) * `|e2|.
(GLSLstd450Refract)

Expand Down