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Implement Matrix4x4::RandomGeneral()

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josh
2024-05-31 15:18:14 -04:00
parent a4f10b0b7e
commit 36e1f398a7
2 changed files with 38 additions and 12 deletions
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19
src/J3ML/LinearAlgebra/Matrix4x4.cpp
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@@ -557,10 +557,10 @@ namespace J3ML::LinearAlgebra {
// See http://www.songho.ca/opengl/gl_projectionmatrix.html , unlike in Direct3D, where the
// Z coordinate ranges in [0, 1]. This is the only difference between D3DPerspProjRH and OpenGLPerspProjRH.
using f32 = float;
float p00 = 2.f *n / h; float p01 = 0; float p02 = 0; float p03 = 0.f;
float p10 = 0; float p11 = 2.f * n / v; float p12 = 0; float p13 = 0.f;
float p20 = 0; float p21 = 0; float p22 = (n+f) / (n-f); float p23 = 2.f*n*f / (n-f);
float p30 = 0; float p31 = 0; float p32 = -1.f; float p33 = 0.f;
f32 p00 = 2.f *n / h; f32 p01 = 0; f32 p02 = 0; f32 p03 = 0.f;
f32 p10 = 0; f32 p11 = 2.f * n / v; f32 p12 = 0; f32 p13 = 0.f;
f32 p20 = 0; f32 p21 = 0; f32 p22 = (n+f) / (n-f); f32 p23 = 2.f*n*f / (n-f);
f32 p30 = 0; f32 p31 = 0; f32 p32 = -1.f; f32 p33 = 0.f;
return {p00, p01, p02, p03, p10, p11, p12, p13, p20, p21, p22, p23, p30, p31, p32, p33};
}
@@ -1038,5 +1038,16 @@ namespace J3ML::LinearAlgebra {
0.f, 0.f, 0.f, 1.f);
}
Matrix4x4 Matrix4x4::RandomGeneral(RNG &rng, float minElem, float maxElem) {
assert(std::isfinite(minElem));
assert(std::isfinite(maxElem));
Matrix4x4 m;
for (int y = 0; y < 4; ++y)
for (int x = 0; x < 4; ++x)
m[y][x] = rng.Float(minElem, maxElem);
return m;
}
}