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fixed unity bug

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Orange
2026-04-15 03:25:53 +03:00
parent 9d30446c55
commit dbe29926dc
3 changed files with 202 additions and 2 deletions
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2
include/omath/engines/unity_engine/camera.hpp
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@@ -9,5 +9,5 @@
namespace omath::unity_engine
{
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait, false, NDCDepthRange::ZERO_TO_ONE>;
using Camera = projection::Camera<Mat4X4, ViewAngles, CameraTrait, true, NDCDepthRange::ZERO_TO_ONE>;
} // namespace omath::unity_engine

17
include/omath/projection/camera.hpp
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@@ -86,9 +86,24 @@ namespace omath::projection
[[nodiscard]]
static ViewAnglesType calc_view_angles_from_view_matrix(const Mat4X4Type& view_matrix) noexcept
{
const Vector3<float> forward_vector = {view_matrix[2, 0], view_matrix[2, 1], view_matrix[2, 2]};
Vector3<float> forward_vector = {view_matrix[2, 0], view_matrix[2, 1], view_matrix[2, 2]};
if constexpr (inverted_z)
forward_vector = -forward_vector;
return TraitClass::calc_look_at_angle({}, forward_vector);
}
[[nodiscard]]
static Vector3<float> calc_origin_from_view_matrix(const Mat4X4Type& view_matrix) noexcept
{
// The view matrix is R * T(-origin), so the last column stores t = -R * origin.
// Recovering origin: origin = -R^T * t
return {
-(view_matrix[0, 0] * view_matrix[0, 3] + view_matrix[1, 0] * view_matrix[1, 3] + view_matrix[2, 0] * view_matrix[2, 3]),
-(view_matrix[0, 1] * view_matrix[0, 3] + view_matrix[1, 1] * view_matrix[1, 3] + view_matrix[2, 1] * view_matrix[2, 3]),
-(view_matrix[0, 2] * view_matrix[0, 3] + view_matrix[1, 2] * view_matrix[1, 3] + view_matrix[2, 2] * view_matrix[2, 3]),
};
}
void look_at(const Vector3<float>& target)
{
m_view_angles = TraitClass::calc_look_at_angle(m_origin, target);