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Merge pull request #294 from jonathonracz/0.9.6

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Decompose Function VS2010 Templating Issues #294
This commit is contained in:
Christophe Riccio 2015-01-07 12:42:43 +01:00
commit 740dc48ce7
1 changed files with 8 additions and 7 deletions
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15
glm/gtx/matrix_decompose.inl
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@ -125,31 +125,32 @@ namespace glm
// Now get scale and shear.
for(length_t i = 0; i < 3; ++i)
Row[i] = LocalMatrix[i];
for(int j = 0; j < 3; ++j)
Row[i][j] = LocalMatrix[i][j];
// Compute X scale factor and normalize first row.
Scale.x = length(Row[0]);// v3Length(Row[0]);
v3Scale(Row[0], 1.0);
v3Scale(Row[0], static_cast<T>(1));
// Compute XY shear factor and make 2nd row orthogonal to 1st.
Skew.z = dot(Row[0], Row[1]);
Row[1] = combine(Row[1], Row[0], 1.0, -Skew.z);
Row[1] = combine(Row[1], Row[0], static_cast<T>(1), -Skew.z);
// Now, compute Y scale and normalize 2nd row.
Scale.y = length(Row[1]);
v3Scale(Row[1], 1.0);
v3Scale(Row[1], static_cast<T>(1));
Skew.z /= Scale.y;
// Compute XZ and YZ shears, orthogonalize 3rd row.
Skew.y = glm::dot(Row[0], Row[2]);
Row[2] = combine(Row[2], Row[0], 1.0, -Skew.y);
Row[2] = combine(Row[2], Row[0], static_cast<T>(1), -Skew.y);
Skew.x = glm::dot(Row[1], Row[2]);
Row[2] = combine(Row[2], Row[1], 1.0, -Skew.x);
Row[2] = combine(Row[2], Row[1], static_cast<T>(1), -Skew.x);
// Next, get Z scale and normalize 3rd row.
Scale.z = length(Row[2]);
v3Scale(Row[2], 1.0);
v3Scale(Row[2], static_cast<T>(1));
Skew.y /= Scale.z;
Skew.x /= Scale.z;