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Noise: First pass of refactoring

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Former-commit-id: 77de49ee01fea466cb97b22771e4c625389fd95c [formerly edce9427bc009c8ea6a6df35d9ce134a83ab985c]
Former-commit-id: 76227519c8be75a45f6f65250a0870c2eb866953
This commit is contained in:
Jérôme Leclercq
2016-06-18 12:36:20 +02:00
parent 81245a9c43
commit 5970682035
14 changed files with 485 additions and 535 deletions
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64
src/Nazara/Noise/HybridMultiFractal.cpp
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@@ -12,10 +12,10 @@ namespace Nz
{
}
float HybridMultiFractal::Get(std::initializer_list<float> coordinates, float scale) const
float HybridMultiFractal::Get(float x, float y, float scale) const
{
float offset = 1.0f;
float value = (m_source.Get(coordinates,scale) + offset) * m_exponent_array.at(0);
float value = (m_source.Get(x, y, scale) + offset) * m_exponent_array.at(0);
float weight = value;
float signal = 0.f;
@@ -26,7 +26,7 @@ namespace Nz
if (weight > 1.f)
weight = 1.f;
signal = (m_source.Get(coordinates,scale) + offset) * m_exponent_array.at(i);
signal = (m_source.Get(x, y, scale) + offset) * m_exponent_array.at(i);
value += weight * signal;
weight *= signal;
scale *= m_lacunarity;
@@ -35,7 +35,63 @@ namespace Nz
float remainder = m_octaves - static_cast<int>(m_octaves);
if (remainder > 0.f)
value += remainder * m_source.Get(coordinates,scale) * m_exponent_array.at(static_cast<int>(m_octaves-1));
value += remainder * m_source.Get(x, y, scale) * m_exponent_array.at(static_cast<int>(m_octaves-1));
return value / m_sum - offset;
}
float HybridMultiFractal::Get(float x, float y, float z, float scale) const
{
float offset = 1.0f;
float value = (m_source.Get(x, y, z, scale) + offset) * m_exponent_array.at(0);
float weight = value;
float signal = 0.f;
scale *= m_lacunarity;
for(int i(1) ; i < m_octaves; ++i)
{
if (weight > 1.f)
weight = 1.f;
signal = (m_source.Get(x, y, z, scale) + offset) * m_exponent_array.at(i);
value += weight * signal;
weight *= signal;
scale *= m_lacunarity;
}
float remainder = m_octaves - static_cast<int>(m_octaves);
if (remainder > 0.f)
value += remainder * m_source.Get(x, y, z, scale) * m_exponent_array.at(static_cast<int>(m_octaves-1));
return value / m_sum - offset;
}
float HybridMultiFractal::Get(float x, float y, float z, float w, float scale) const
{
float offset = 1.0f;
float value = (m_source.Get(x, y, z, w, scale) + offset) * m_exponent_array.at(0);
float weight = value;
float signal = 0.f;
scale *= m_lacunarity;
for(int i(1) ; i < m_octaves; ++i)
{
if (weight > 1.f)
weight = 1.f;
signal = (m_source.Get(x, y, z, w, scale) + offset) * m_exponent_array.at(i);
value += weight * signal;
weight *= signal;
scale *= m_lacunarity;
}
float remainder = m_octaves - static_cast<int>(m_octaves);
if (remainder > 0.f)
value += remainder * m_source.Get(x, y, z, w, scale) * m_exponent_array.at(static_cast<int>(m_octaves-1));
return value / m_sum - offset;
}