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Fix Quaternion → Matrix conversion

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This commit is contained in:
Szymon Nowakowski
2026-01-05 23:57:54 +01:00
parent a17a39a9a4
commit 6c9a786926
2 changed files with 27 additions and 27 deletions
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18
packages/vecmath/src/matrices/Matrix4x4.zig
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@@ -75,9 +75,9 @@ pub const Matrix4x4 = extern struct {
return .{
// zig fmt: off
.ix = 1 - 2 * (yy + zz), .iy = 2 * (xy - zw), .iz = 2 * (xz + yw), .iw = 0,
.jx = 2 * (xy + zw), .jy = 1 - 2 * (xx + zz), .jz = 2 * (yz - xw), .jw = 0,
.kx = 2 * (xz - yw), .ky = 2 * (yz + xw), .kz = 1 - 2 * (xx + yy), .kw = 0,
.ix = 1 - 2 * (yy + zz), .iy = 2 * (xy + zw), .iz = 2 * (xz - yw), .iw = 0,
.jx = 2 * (xy - zw), .jy = 1 - 2 * (xx + zz), .jz = 2 * (yz + xw), .jw = 0,
.kx = 2 * (xz + yw), .ky = 2 * (yz - xw), .kz = 1 - 2 * (xx + yy), .kw = 0,
.tx = 0, .ty = 0, .tz = 0, .tw = 1,
// zig fmt: on
};
@@ -121,9 +121,9 @@ pub const Matrix4x4 = extern struct {
return .{
// zig fmt: off
.ix = 1 - 2 * (yy + zz), .iy = 2 * (xy - zw), .iz = 2 * (xz + yw), .iw = 0,
.jx = 2 * (xy + zw), .jy = 1 - 2 * (xx + zz), .jz = 2 * (yz - xw), .jw = 0,
.kx = 2 * (xz - yw), .ky = 2 * (yz + xw), .kz = 1 - 2 * (xx + yy), .kw = 0,
.ix = 1 - 2 * (yy + zz), .iy = 2 * (xy + zw), .iz = 2 * (xz - yw), .iw = 0,
.jx = 2 * (xy - zw), .jy = 1 - 2 * (xx + zz), .jz = 2 * (yz + xw), .jw = 0,
.kx = 2 * (xz + yw), .ky = 2 * (yz - xw), .kz = 1 - 2 * (xx + yy), .kw = 0,
.tx = t.x, .ty = t.y, .tz = t.z, .tw = 1,
// zig fmt: on
};
@@ -153,9 +153,9 @@ pub const Matrix4x4 = extern struct {
return .{
// zig fmt: off
.ix = s.x * (1 - 2 * (yy + zz)), .iy = s.x * 2 * (xy - zw), .iz = s.x * 2 * (xz + yw), .iw = 0,
.jx = s.y * 2 * (xy + zw), .jy = s.y * (1 - 2 * (xx + zz)), .jz = s.y * 2 * (yz - xw), .jw = 0,
.kx = s.z * 2 * (xz - yw), .ky = s.z * 2 * (yz + xw), .kz = s.z * (1 - 2 * (xx + yy)), .kw = 0,
.ix = s.x * (1 - 2 * (yy + zz)), .iy = s.x * 2 * (xy + zw), .iz = s.x * 2 * (xz - yw), .iw = 0,
.jx = s.y * 2 * (xy - zw), .jy = s.y * (1 - 2 * (xx + zz)), .jz = s.y * 2 * (yz + xw), .jw = 0,
.kx = s.z * 2 * (xz + yw), .ky = s.z * 2 * (yz - xw), .kz = s.z * (1 - 2 * (xx + yy)), .kw = 0,
.tx = t.x, .ty = t.y, .tz = t.z, .tw = 1,
// zig fmt: on
};