X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Frand%2FSimplexNoise.hpp;fp=src%2Frand%2FSimplexNoise.hpp;h=7a7242b05b59af021fbd741dc9a84202f96feea9;hb=b7d09e1e35ef90282c97509e0020b20db3c7ea9f;hp=0000000000000000000000000000000000000000;hpb=e53a0e2e711a7d8bd9b0ddacd1360aa14370643f;p=blank.git

diff --git a/src/rand/SimplexNoise.hpp b/src/rand/SimplexNoise.hpp
new file mode 100644
index 0000000..7a7242b
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+++ b/src/rand/SimplexNoise.hpp
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+#ifndef BLANK_RAND_SIMPLEXNOISE_HPP_
+#define BLANK_RAND_SIMPLEXNOISE_HPP_
+
+#include <glm/glm.hpp>
+
+
+namespace blank {
+
+/// (3D only) adaptation of Stefan Gustavson's SimplexNoise java class
+class SimplexNoise {
+
+public:
+	explicit SimplexNoise(unsigned int seed) noexcept;
+
+	float operator ()(const glm::vec3 &) const noexcept;
+
+private:
+	int Perm(int idx) const noexcept;
+	int Perm12(int idx) const noexcept;
+	const glm::vec3 &Grad(int idx) const noexcept;
+
+private:
+	int perm[512];
+	int perm12[512];
+	glm::vec3 grad[12];
+
+};
+
+}
+
+#endif