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This commit is contained in:
Christophe Riccio 2011-09-26 02:20:23 +01:00
parent 8876a7f7f4
commit 0abdaee9b4
2 changed files with 10 additions and 10 deletions
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2
glm/gtx/noise.inl
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@ -760,7 +760,7 @@ GLM_FUNC_QUALIFIER T simplex(detail::tvec3<T> const & v)
// Mix final noise value // Mix final noise value
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)); 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));
m = m * m; m = m * m;
return T(42) * dot(m * m, vec4(dot(p0, x0), dot(p1, x1), dot(p2, x2), dot(p3, x3))); return T(42) * dot(m * m, detail::tvec4<T>(dot(p0, x0), dot(p1, x1), dot(p2, x2), dot(p3, x3)));
} }
template <typename T> template <typename T>

18
test/gtx/gtx_noise.cpp
View File

@ -23,7 +23,7 @@ int test_simplex()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec2(x / 32.f, y / 32.f)) * 128.f + 127.f); ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec2(x / 64.f, y / 64.f)) * 128.f + 127.f);
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -40,7 +40,7 @@ int test_simplex()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec3(x / 32.f, y / 32.f, 0.5f)) * 128.f + 127.f); ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec3(x / 64.f, y / 64.f, 0.5f)) * 128.f + 127.f);
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -57,7 +57,7 @@ int test_simplex()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec4(x / 32.f, y / 32.f, 0.5f, 0.5f)) * 128.f + 127.f); ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec4(x / 64.f, y / 64.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 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -81,7 +81,7 @@ int test_perlin()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
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 + 0] = glm::byte(glm::perlin(glm::vec2(x / 64.f, y / 64.f)) * 128.f + 127.f);
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -98,7 +98,7 @@ int test_perlin()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
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 + 0] = glm::byte(glm::perlin(glm::vec3(x / 64.f, y / 64.f, 0.5f)) * 128.f + 127.f);
ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -115,7 +115,7 @@ int test_perlin()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
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 + 0] = glm::byte(glm::perlin(glm::vec4(x / 64.f, y / 64.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 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -139,7 +139,7 @@ int test_perlin_pedioric()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
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 + 0] = glm::byte(glm::perlin(glm::vec2(x / 64.f, y / 64.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 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -156,7 +156,7 @@ int test_perlin_pedioric()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
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 + 0] = glm::byte(glm::perlin(glm::vec3(x / 64.f, y / 64.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 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }
@ -173,7 +173,7 @@ int test_perlin_pedioric()
for(std::size_t y = 0; y < Size; ++y) for(std::size_t y = 0; y < Size; ++y)
for(std::size_t x = 0; x < Size; ++x) for(std::size_t x = 0; x < Size; ++x)
{ {
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 + 0] = glm::byte(glm::perlin(glm::vec4(x / 64.f, y / 64.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 + 1] = ImageData[(x + y * Size) * 3 + 0];
ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0]; ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
} }