sanspie
17cb5e4291
Stage 2: render pipeline and UI toolkit over gpu/platform. Stage 3: schema registry, asset pipeline + runtime loader, scene graph and ECS. Stage 4: editor — docking, inspector, scene/game views, play mode, asset browser, console, profiler; 4.5 adds the 3D foundation (mixed 2D/3D spaces, meshes, depth). Stage 5: Aego Script — compiler (lexer/parser/types/resolver/checker/asm/compiler), bytecode with verifier and register VM, instance runtime, stdlib, native bindings, and editor/CLI integration (aego run/edit/check/test/dump).
19 lines
418 B
Go
19 lines
418 B
Go
package mathx
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func QuatYawPitch(yaw, pitch float32) Quat {
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return QuatAxisAngle(Vec3{Y: 1}, yaw).Mul(QuatAxisAngle(Vec3{X: 1}, pitch))
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}
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func YawPitchOf(dir Vec3) (yaw, pitch float32) {
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h := Sqrt(dir.X*dir.X + dir.Z*dir.Z)
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return Atan2(-dir.X, -dir.Z), Atan2(dir.Y, h)
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}
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func QuatLookDir(dir Vec3) Quat {
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if dir.LenSq() < 1e-12 {
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return QuatIdentity()
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}
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y, p := YawPitchOf(dir)
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return QuatYawPitch(y, p)
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}
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