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LibGL+LibSoftGPU+LibGfx: Reimplement normal transformation
We now support generating top-left submatrices from a `Gfx::Matrix` and we move the normal transformation calculation into `SoftGPU::Device`. No functional changes.
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4 changed files with 22 additions and 14 deletions
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@ -13,6 +13,9 @@ namespace Gfx {
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template<size_t N, typename T>
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class Matrix {
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template<size_t U, typename V>
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friend class Matrix;
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public:
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static constexpr size_t Size = N;
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@ -173,6 +176,17 @@ public:
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return result;
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}
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template<size_t U>
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[[nodiscard]] constexpr Matrix<U, T> submatrix_from_topleft() const requires(U > 0 && U < N)
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{
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Matrix<U, T> result;
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for (size_t i = 0; i < U; ++i) {
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for (size_t j = 0; j < U; ++j)
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result.m_elements[i][j] = m_elements[i][j];
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}
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return result;
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}
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private:
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T m_elements[N][N];
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};
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