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use bit-stable lerp form in frame_interpolation (#1326)

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Loïs
2026-05-14 21:05:54 +02:00
committed by GitHub
parent 232f73365c
commit 2bdc7b6c09
1 changed files with 5 additions and 6 deletions
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src/dusk/frame_interpolation.cpp
+5 -6
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@@ -66,19 +66,18 @@ void copy_view_to_snap(CameraSnapshot* dst, const view_class& v) {
}
inline void lerp_matrix(Mtx out, const Mtx lhs, const Mtx rhs, float step) {
const float old_weight = 1.0f - step;
for (size_t row = 0; row < 3; ++row) {
for (size_t col = 0; col < 4; ++col) {
out[row][col] = lhs[row][col] * old_weight + rhs[row][col] * step;
const float l = lhs[row][col];
out[row][col] = l + (rhs[row][col] - l) * step;
}
}
}
inline void lerp_xyz(cXyz* out, const cXyz& lhs, const cXyz& rhs, float step) {
const float old_weight = 1.0f - step;
out->x = lhs.x * old_weight + rhs.x * step;
out->y = lhs.y * old_weight + rhs.y * step;
out->z = lhs.z * old_weight + rhs.z * step;
out->x = lhs.x + (rhs.x - lhs.x) * step;
out->y = lhs.y + (rhs.y - lhs.y) * step;
out->z = lhs.z + (rhs.z - lhs.z) * step;
}
static s16 lerp_bank(s16 a, s16 b, f32 t) {