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  < span id = "projectnumber" > 0.9.5< / span >
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< div class = "headertitle" >
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< div class = "title" > Geometric functions< div class = "ingroups" > < a class = "el" href = "a00167.html" > GLM Core< / a > < / div > < / div > < / div >
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< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "func-members" > < / a >
Functions< / h2 > < / td > < / tr >
< tr class = "memitem:ga89b91c2a256cfb62ecbc589d1ee36d3c" > < td class = "memTemplParams" colspan = "2" > template< typename T , precision P> < / td > < / tr >
< tr class = "memitem:ga89b91c2a256cfb62ecbc589d1ee36d3c" > < td class = "memTemplItemLeft" align = "right" valign = "top" > GLM_FUNC_DECL detail::tvec3< T, P >   < / td > < td class = "memTemplItemRight" valign = "bottom" > < a class = "el" href = "a00157.html#ga89b91c2a256cfb62ecbc589d1ee36d3c" > cross< / a > (detail::tvec3< T, P > const & x, detail::tvec3< T, P > const & y)< / td > < / tr >
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< tr class = "memitem:ga7dada304da2ba7dd3376ab4f178c3f6b" > < td class = "memTemplItemLeft" align = "right" valign = "top" > GLM_FUNC_DECL T  < / td > < td class = "memTemplItemRight" valign = "bottom" > < a class = "el" href = "a00157.html#ga7dada304da2ba7dd3376ab4f178c3f6b" > dot< / a > (vecType< T, P > const & x, vecType< T, P > const & y)< / td > < / tr >
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< tr class = "memitem:ga4bbb036ef9527ee9f67384233029ed9b" > < td class = "memTemplItemLeft" align = "right" valign = "top" > GLM_FUNC_DECL genType  < / td > < td class = "memTemplItemRight" valign = "bottom" > < a class = "el" href = "a00157.html#ga4bbb036ef9527ee9f67384233029ed9b" > faceforward< / a > (genType const & N, genType const & I, genType const & Nref)< / td > < / tr >
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< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
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< p > These operate on vectors as vectors, not component-wise. < / p >
< h2 class = "groupheader" > Function Documentation< / h2 >
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< td class = "memname" > GLM_FUNC_DECL detail::tvec3< T, P> glm::cross < / td >
< td > (< / td >
< td class = "paramtype" > detail::tvec3< T, P > const &   < / td >
< td class = "paramname" > < em > x< / em > , < / td >
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< / tr >
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< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > detail::tvec3< T, P > const &   < / td >
< td class = "paramname" > < em > y< / em >   < / td >
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< / tr >
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< tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< p > Returns the cross product of x and y. < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
< table class = "tparams" >
< tr > < td class = "paramname" > valType< / td > < td > Floating-point scalar types.< / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/cross.xml" > GLSL cross man page< / a > < / dd >
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< dd >
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< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< td class = "memname" > GLM_FUNC_DECL genType::value_type glm::distance < / td >
< td > (< / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > p0< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > p1< / em >   < / td >
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< / tr >
< tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< / tr >
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< p > Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
< table class = "tparams" >
< tr > < td class = "paramname" > genType< / td > < td > Floating-point vector types.< / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/distance.xml" > GLSL distance man page< / a > < / dd >
< dd >
< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< a class = "anchor" id = "ga7dada304da2ba7dd3376ab4f178c3f6b" > < / a >
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< td class = "memname" > GLM_FUNC_DECL T glm::dot < / td >
< td > (< / td >
< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > x< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > y< / em >   < / td >
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< / tr >
< tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Returns the dot product of x and y, i.e., result = x * y. < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
< table class = "tparams" >
< tr > < td class = "paramname" > genType< / td > < td > Floating-point vector types.< / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/dot.xml" > GLSL dot man page< / a > < / dd >
< dd >
< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< a class = "anchor" id = "ga4bbb036ef9527ee9f67384233029ed9b" > < / a >
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< td class = "memname" > GLM_FUNC_DECL genType glm::faceforward < / td >
< td > (< / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > N< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > I< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > Nref< / em >   < / td >
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< / tr >
< tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > If dot(Nref, I) < 0.0, return N, otherwise, return -N. < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
< table class = "tparams" >
< tr > < td class = "paramname" > genType< / td > < td > Floating-point vector types.< / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/faceforward.xml" > GLSL faceforward man page< / a > < / dd >
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< dd >
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< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< td class = "memname" > GLM_FUNC_DECL genType::value_type glm::length < / td >
< td > (< / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
< td > < / td >
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< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Returns the length of x, i.e., sqrt(x * x). < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
< table class = "tparams" >
< tr > < td class = "paramname" > genType< / td > < td > Floating-point vector types.< / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/length.xml" > GLSL length man page< / a > < / dd >
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< dd >
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< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< / div >
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< a class = "anchor" id = "ga15aa87101457e41663b08a8dcc3357f8" > < / a >
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< td class = "memname" > GLM_FUNC_DECL genType glm::normalize < / td >
< td > (< / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > x< / em > < / td > < td > )< / td >
< td > < / td >
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< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Returns a vector in the same direction as x but with length of 1. < / p >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/normalize.xml" > GLSL normalize man page< / a > < / dd >
< dd >
< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< a class = "anchor" id = "gab63646fc36b81cf69d3ce123a72f76f2" > < / a >
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< td class = "memname" > GLM_FUNC_DECL genType glm::reflect < / td >
< td > (< / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > I< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > genType const &   < / td >
< td class = "paramname" > < em > N< / em >   < / td >
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< / tr >
< tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< / tr >
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< p > For the incident vector I and surface orientation N, returns the reflection direction : result = I - 2.0 * dot(N, I) * N. < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
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< tr > < td class = "paramname" > genType< / td > < td > Floating-point vector types.< / td > < / tr >
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< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/reflect.xml" > GLSL reflect man page< / a > < / dd >
< dd >
< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< a class = "anchor" id = "ga99d8ddb244b129892babaca9778206d0" > < / a >
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< td class = "memname" > GLM_FUNC_DECL vecType< T, P> glm::refract < / td >
< td > (< / td >
< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > I< / em > , < / td >
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< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > vecType< T, P > const &   < / td >
< td class = "paramname" > < em > N< / em > , < / td >
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< / tr >
< tr >
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< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > T const &   < / td >
< td class = "paramname" > < em > eta< / em >   < / td >
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< tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< p > For the incident vector I and surface normal N, and the ratio of indices of refraction eta, return the refraction vector. < / p >
< dl class = "tparams" > < dt > Template Parameters< / dt > < dd >
< table class = "tparams" >
< tr > < td class = "paramname" > genType< / td > < td > Floating-point vector types.< / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section see" > < dt > See Also< / dt > < dd > < a href = "http://www.opengl.org/sdk/docs/manglsl/xhtml/refract.xml" > GLSL refract man page< / a > < / dd >
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< dd >
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< a href = "http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf" > GLSL 4.20.8 specification, section 8.5 Geometric Functions< / a > < / dd > < / dl >
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< / a > 1.8.5
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