mirror of
https://github.com/g-truc/glm.git
synced 2024-11-23 01:14:34 +00:00
Merge branch '0.9.3' of ssh://ogl-math.git.sourceforge.net/gitroot/ogl-math/ogl-math into 0.9.3
This commit is contained in:
Christophe Riccio
commit
dd2de8b20d
@ -67,9 +67,9 @@ namespace detail
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# elif(GLM_COMPONENT == GLM_COMPONENT_MS_EXT)
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union
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{
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struct{value_type x, y;};
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struct{value_type r, g;};
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struct{value_type s, t;};
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struct{value_type x, y;};
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};
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# else//(GLM_COMPONENT == GLM_COMPONENT_GLSL_NAMES)
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union {value_type x, r, s;};
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@ -67,9 +67,9 @@ namespace detail
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# elif(GLM_COMPONENT == GLM_COMPONENT_MS_EXT)
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union
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{
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struct{value_type x, y, z;};
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struct{value_type r, g, b;};
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struct{value_type s, t, p;};
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struct{value_type x, y, z;};
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};
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# else//(GLM_COMPONENT == GLM_COMPONENT_GLSL_NAMES)
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union {value_type x, r, s;};
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@ -67,9 +67,9 @@ namespace detail
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# elif(GLM_COMPONENT == GLM_COMPONENT_MS_EXT)
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union
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{
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struct{value_type x, y, z, w;};
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struct{value_type r, g, b, a;};
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struct{value_type s, t, p, q;};
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struct{value_type x, y, z, w;};
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};
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# else//(GLM_COMPONENT == GLM_COMPONENT_GLSL_NAMES)
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union {value_type x, r, s;};
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@ -47,7 +47,7 @@
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namespace glm{
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namespace detail
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{
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#if 1 //ndef _MSC_EXTENSIONS
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#ifndef _MSC_EXTENSIONS
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template <>
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struct tvec2<thalf>
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{
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@ -29,7 +29,7 @@
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namespace glm{
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namespace detail{
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#if 1 //ndef _MSC_EXTENSIONS
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#ifndef _MSC_EXTENSIONS
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//////////////////////////////////////
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// hvec2
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@ -17,16 +17,22 @@
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namespace glm{
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template <typename T>
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GLM_FUNC_QUALIFIER T mod289(T const & x)
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{
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return x - floor(x * T(1.0 / 289.0)) * T(289.0);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T permute(T const & x)
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{
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return mod(((x * T(34)) + T(1)) * x, T(289));
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return mod289(((x * T(34)) + T(1)) * x);
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}
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template <typename T, template<typename> class vecType>
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GLM_FUNC_QUALIFIER vecType<T> permute(vecType<T> const & x)
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{
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return mod(((x * T(34)) + T(1)) * x, T(289));
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return mod289(((x * T(34)) + T(1)) * x);
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}
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template <typename T>
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@ -98,6 +104,77 @@ GLM_FUNC_QUALIFIER T perlin(detail::tvec2<T> const & P)
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return T(2.3) * n_xy;
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}
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// Classic Perlin noise
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template <typename T>
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GLM_FUNC_QUALIFIER T perlin(detail::tvec3<T> const & P)
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{
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detail::tvec3<T> Pi0 = floor(P); // Integer part for indexing
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detail::tvec3<T> Pi1 = Pi0 + T(1); // Integer part + 1
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Pi0 = mod289(Pi0);
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Pi1 = mod289(Pi1);
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detail::tvec3<T> Pf0 = fract(P); // Fractional part for interpolation
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detail::tvec3<T> Pf1 = Pf0 - T(1); // Fractional part - 1.0
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detail::tvec4<T> ix(Pi0.x, Pi1.x, Pi0.x, Pi1.x);
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detail::tvec4<T> iy = detail::tvec4<T>(detail::tvec2<T>(Pi0.y), detail::tvec2<T>(Pi1.y));
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detail::tvec4<T> iz0(Pi0.z);
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detail::tvec4<T> iz1(Pi1.z);
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detail::tvec4<T> ixy = permute(permute(ix) + iy);
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detail::tvec4<T> ixy0 = permute(ixy + iz0);
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detail::tvec4<T> ixy1 = permute(ixy + iz1);
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detail::tvec4<T> gx0 = ixy0 * T(1.0 / 7.0);
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detail::tvec4<T> gy0 = fract(floor(gx0) * T(1.0 / 7.0)) - T(0.5);
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gx0 = fract(gx0);
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detail::tvec4<T> gz0 = detail::tvec4<T>(0.5) - abs(gx0) - abs(gy0);
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detail::tvec4<T> sz0 = step(gz0, detail::tvec4<T>(0.0));
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gx0 -= sz0 * (step(T(0), gx0) - T(0.5));
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gy0 -= sz0 * (step(T(0), gy0) - T(0.5));
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detail::tvec4<T> gx1 = ixy1 * T(1.0 / 7.0);
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detail::tvec4<T> gy1 = fract(floor(gx1) * T(1.0 / 7.0)) - T(0.5);
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gx1 = fract(gx1);
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detail::tvec4<T> gz1 = detail::tvec4<T>(0.5) - abs(gx1) - abs(gy1);
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detail::tvec4<T> sz1 = step(gz1, detail::tvec4<T>(0.0));
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gx1 -= sz1 * (step(T(0), gx1) - T(0.5));
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gy1 -= sz1 * (step(T(0), gy1) - T(0.5));
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detail::tvec3<T> g000(gx0.x, gy0.x, gz0.x);
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detail::tvec3<T> g100(gx0.y, gy0.y, gz0.y);
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detail::tvec3<T> g010(gx0.z, gy0.z, gz0.z);
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detail::tvec3<T> g110(gx0.w, gy0.w, gz0.w);
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detail::tvec3<T> g001(gx1.x, gy1.x, gz1.x);
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detail::tvec3<T> g101(gx1.y, gy1.y, gz1.y);
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detail::tvec3<T> g011(gx1.z, gy1.z, gz1.z);
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detail::tvec3<T> g111(gx1.w, gy1.w, gz1.w);
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detail::tvec4<T> norm0 = taylorInvSqrt(detail::tvec4<T>(dot(g000, g000), dot(g010, g010), dot(g100, g100), dot(g110, g110)));
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g000 *= norm0.x;
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g010 *= norm0.y;
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g100 *= norm0.z;
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g110 *= norm0.w;
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detail::tvec4<T> norm1 = taylorInvSqrt(detail::tvec4<T>(dot(g001, g001), dot(g011, g011), dot(g101, g101), dot(g111, g111)));
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g001 *= norm1.x;
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g011 *= norm1.y;
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g101 *= norm1.z;
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g111 *= norm1.w;
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T n000 = dot(g000, Pf0);
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T n100 = dot(g100, detail::tvec3<T>(Pf1.x, Pf0.y, Pf0.z));
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T n010 = dot(g010, detail::tvec3<T>(Pf0.x, Pf1.y, Pf0.z));
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T n110 = dot(g110, detail::tvec3<T>(Pf1.x, Pf1.y, Pf0.z));
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T n001 = dot(g001, detail::tvec3<T>(Pf0.x, Pf0.y, Pf1.z));
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T n101 = dot(g101, detail::tvec3<T>(Pf1.x, Pf0.y, Pf1.z));
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T n011 = dot(g011, detail::tvec3<T>(Pf0.x, Pf1.y, Pf1.z));
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T n111 = dot(g111, Pf1);
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detail::tvec3<T> fade_xyz = fade(Pf0);
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detail::tvec4<T> n_z = mix(detail::tvec4<T>(n000, n100, n010, n110), detail::tvec4<T>(n001, n101, n011, n111), fade_xyz.z);
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detail::tvec2<T> n_yz = mix(detail::tvec2<T>(n_z.x, n_z.y), detail::tvec2<T>(n_z.z, n_z.w), fade_xyz.y);
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T n_xyz = mix(n_yz.x, n_yz.y, fade_xyz.x);
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return T(2.2) * n_xyz;
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}
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/*
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// Classic Perlin noise
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template <typename T>
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GLM_FUNC_QUALIFIER T perlin(detail::tvec3<T> const & P)
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@ -170,7 +247,7 @@ GLM_FUNC_QUALIFIER T perlin(detail::tvec3<T> const & P)
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T n_xyz = mix(n_yz.x, n_yz.y, fade_xyz.x);
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return T(2.2) * n_xyz;
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}
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*/
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// Classic Perlin noise
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template <typename T>
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GLM_FUNC_QUALIFIER T perlin(detail::tvec4<T> const & P)
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@ -614,18 +691,18 @@ GLM_FUNC_QUALIFIER T simplex(glm::detail::tvec2<T> const & v)
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template <typename T>
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GLM_FUNC_QUALIFIER T simplex(detail::tvec3<T> const & v)
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{
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detail::tvec2<T> const C = detail::tvec2<T>(1.0 / 6.0, 1.0 / 3.0);
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detail::tvec4<T> const D = detail::tvec4<T>(0.0, 0.5, 1.0, 2.0);
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detail::tvec2<T> const C(1.0 / 6.0, 1.0 / 3.0);
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detail::tvec4<T> const D(0.0, 0.5, 1.0, 2.0);
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// First corner
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detail::tvec3<T> i = floor(v + dot(v, detail::tvec3<T>(C.y)));
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detail::tvec3<T> x0 = v - i + dot(i, detail::tvec3<T>(C.x));
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detail::tvec3<T> x0 = v - i + dot(i, detail::tvec3<T>(C.x));
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// Other corners
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detail::tvec3<T> g = step(detail::tvec3<T>(x0.y, x0.z, x0.x), detail::tvec3<T>(x0.x, x0.y, x0.z));
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detail::tvec3<T> g = step(detail::tvec3<T>(x0.y, x0.z, x0.x), x0);
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detail::tvec3<T> l = T(1) - g;
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detail::tvec3<T> i1 = min(detail::tvec3<T>(g.x, g.y, g.z), detail::tvec3<T>(l.z, l.x, l.y));
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detail::tvec3<T> i2 = max(detail::tvec3<T>(g.x, g.y, g.z), detail::tvec3<T>(l.z, l.x, l.y));
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detail::tvec3<T> i1 = min(g, detail::tvec3<T>(l.z, l.x, l.y));
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detail::tvec3<T> i2 = max(g, detail::tvec3<T>(l.z, l.x, l.y));
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// x0 = x0 - 0.0 + 0.0 * C.xxx;
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// x1 = x0 - i1 + 1.0 * C.xxx;
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@ -636,11 +713,11 @@ GLM_FUNC_QUALIFIER T simplex(detail::tvec3<T> const & v)
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detail::tvec3<T> x3 = x0 - D.y; // -1.0+3.0*C.x = -0.5 = -D.y
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// Permutations
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i = mod(i, T(289));
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i = mod289(i);
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detail::tvec4<T> p = permute(permute(permute(
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i.z + detail::tvec4<T>(0.0, i1.z, i2.z, 1.0)) +
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i.y + detail::tvec4<T>(0.0, i1.y, i2.y, 1.0)) +
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i.x + detail::tvec4<T>(0.0, i1.x, i2.x, 1.0));
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i.z + detail::tvec4<T>(T(0), i1.z, i2.z, T(1))) +
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i.y + detail::tvec4<T>(T(0), i1.y, i2.y, T(1))) +
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i.x + detail::tvec4<T>(T(0), i1.x, i2.x, T(1)));
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// Gradients: 7x7 points over a square, mapped onto an octahedron.
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// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)
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@ -656,46 +733,34 @@ GLM_FUNC_QUALIFIER T simplex(detail::tvec3<T> const & v)
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detail::tvec4<T> y = y_ * ns.x + ns.y;
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detail::tvec4<T> h = T(1) - abs(x) - abs(y);
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detail::tvec4<T> b0 = detail::tvec4<T>(x.x, x.y, y.x, y.y);
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detail::tvec4<T> b1 = detail::tvec4<T>(x.z, x.w, y.z, y.w);
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detail::tvec4<T> b0(x.x, x.y, y.x, y.y);
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detail::tvec4<T> b1(x.z, x.w, y.z, y.w);
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//vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;
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//vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;
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// vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;
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// vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;
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detail::tvec4<T> s0 = floor(b0) * T(2) + T(1);
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detail::tvec4<T> s1 = floor(b1) * T(2) + T(1);
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detail::tvec4<T> sh = -step(h, detail::tvec4<T>(0));
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detail::tvec4<T> sh = -step(h, detail::tvec4<T>(0.0));
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detail::tvec4<T> a0 = b0 + s0 * detail::tvec4<T>(sh.x, sh.x, sh.y, sh.y);
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detail::tvec4<T> a1 = b1 + s1 * detail::tvec4<T>(sh.z, sh.z, sh.w, sh.w);
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detail::tvec4<T> a0 = detail::tvec4<T>(b0.x, b0.z, b0.y, b0.w) + detail::tvec4<T>(s0.x, s0.z, s0.y, s0.w) * detail::tvec4<T>(sh.x, sh.x, sh.y, sh.y);
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detail::tvec4<T> a1 = detail::tvec4<T>(b1.x, b1.z, b1.y, b1.w) + detail::tvec4<T>(s1.x, s1.z, s1.y, s1.w) * detail::tvec4<T>(sh.z, sh.z, sh.w, sh.w);
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detail::tvec3<T> p0 = vec3(a0.x, a0.y, h.x);
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detail::tvec3<T> p1 = vec3(a0.z, a0.w, h.y);
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detail::tvec3<T> p2 = vec3(a1.x, a1.y, h.z);
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detail::tvec3<T> p3 = vec3(a1.z, a1.w, h.w);
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detail::tvec3<T> p0(a0.x, a0.y, h.x);
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detail::tvec3<T> p1(a0.z, a0.w, h.y);
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detail::tvec3<T> p2(a1.x, a1.y, h.z);
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detail::tvec3<T> p3(a1.z, a1.w, h.w);
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//Normalise gradients
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detail::tvec4<T> norm = taylorInvSqrt(detail::tvec4<T>(
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dot(p0, p0),
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dot(p1, p1),
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dot(p2, p2),
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dot(p3, p3)));
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// Normalise gradients
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detail::tvec4<T> norm = taylorInvSqrt(detail::tvec4<T>(dot(p0, p0), dot(p1, p1), dot(p2, p2), dot(p3, p3)));
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p0 *= norm.x;
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p1 *= norm.y;
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p2 *= norm.z;
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p3 *= norm.w;
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// Mix final noise value
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vec4 m = max(T(0.6) - detail::tvec4<T>(
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dot(x0, x0),
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dot(x1, x1),
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dot(x2, x2),
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dot(x3, x3)), T(0));
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detail::tvec4<T> m = max(T(0.6) - detail::tvec4<T>(dot(x0, x0), dot(x1, x1), dot(x2, x2), dot(x3, x3)), T(0));
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m = m * m;
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return T(42) * dot(m * m, detail::tvec4<T>(
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dot(p0, x0),
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dot(p1, x1),
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dot(p2, x2),
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dot(p3, x3)));
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return T(42) * dot(m * m, vec4(dot(p0, x0), dot(p1, x1), dot(p2, x2), dot(p3, x3)));
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}
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template <typename T>
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@ -10,38 +10,62 @@
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#include <glm/glm.hpp>
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#include <glm/gtx/noise.hpp>
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#include <gli/gli.hpp>
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#include <gli/gtx/loader.hpp>
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#include <iostream>
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int test_simplex()
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||||
{
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{
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float ImageData[256];
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std::size_t const Size = 256;
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for(std::size_t y = 0; y < 16; ++y)
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for(std::size_t x = 0; x < 16; ++x)
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[x + y * 16] = glm::simplex(glm::vec2(x / 16.f, y / 16.f));
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec2(x / 16.f, y / 16.f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_simplex2d_256.dds");
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}
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{
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float ImageData[256];
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < 16; ++y)
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for(std::size_t x = 0; x < 16; ++x)
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[x + y * 16] = glm::simplex(glm::vec3(x / 16.f, y / 16.f, 0.5f));
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec3(x / 16.f, y / 16.f, 0.5f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_simplex3d_256.dds");
|
||||
}
|
||||
|
||||
{
|
||||
float ImageData[256];
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::simplex(glm::vec4(x / 16.f, y / 16.f, 0.5f, 0.5f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec4(x / 16.f, y / 16.f, 0.5f, 0.5f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_simplex4d_256.dds");
|
||||
}
|
||||
|
||||
return 0;
|
||||
@ -49,34 +73,57 @@ int test_simplex()
|
||||
|
||||
int test_perlin()
|
||||
{
|
||||
{
|
||||
float ImageData[256];
|
||||
std::size_t const Size = 256;
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
{
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::perlin(glm::vec2(x / 16.f, y / 16.f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec2(x / 16.f, y / 16.f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_perlin2d_256.dds");
|
||||
}
|
||||
|
||||
{
|
||||
float ImageData[256];
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::perlin(glm::vec3(x / 16.f, y / 16.f, 0.5f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec3(x / 16.f, y / 16.f, 0.5f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_perlin3d_256.dds");
|
||||
}
|
||||
|
||||
{
|
||||
float ImageData[256];
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::perlin(glm::vec4(x / 16.f, y / 16.f, 0.5f, 0.5f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec4(x / 16.f, y / 16.f, 0.5f, 0.5f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_perlin4d_256.dds");
|
||||
}
|
||||
|
||||
return 0;
|
||||
@ -84,34 +131,57 @@ int test_perlin()
|
||||
|
||||
int test_perlin_pedioric()
|
||||
{
|
||||
{
|
||||
float ImageData[256];
|
||||
std::size_t const Size = 256;
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
{
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::perlin(glm::vec2(x / 16.f, y / 16.f), glm::vec2(0.5f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec2(x / 16.f, y / 16.f), glm::vec2(2.0f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_perlin_pedioric_2d_256.dds");
|
||||
}
|
||||
|
||||
{
|
||||
float ImageData[256];
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::perlin(glm::vec3(x / 16.f, y / 16.f, 0.5f), glm::vec3(0.5f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec3(x / 16.f, y / 16.f, 0.5f), glm::vec3(2.0f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_perlin_pedioric_3d_256.dds");
|
||||
}
|
||||
|
||||
{
|
||||
float ImageData[256];
|
||||
std::vector<glm::byte> ImageData(Size * Size * 3);
|
||||
|
||||
for(std::size_t y = 0; y < 16; ++y)
|
||||
for(std::size_t x = 0; x < 16; ++x)
|
||||
for(std::size_t y = 0; y < Size; ++y)
|
||||
for(std::size_t x = 0; x < Size; ++x)
|
||||
{
|
||||
ImageData[x + y * 16] = glm::perlin(glm::vec4(x / 16.f, y / 16.f, 0.5f, 0.5f), glm::vec4(0.5f));
|
||||
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec4(x / 16.f, y / 16.f, 0.5f, 0.5f), glm::vec4(2.0f)) * 128.f + 127.f);
|
||||
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
|
||||
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
|
||||
}
|
||||
|
||||
gli::texture2D Texture(1);
|
||||
Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
|
||||
memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
|
||||
gli::saveDDS9(Texture, "texture_perlin_pedioric_4d_256.dds");
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user