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fix AP texlock, handle scale 0 in different way

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This commit is contained in:
Garux 2018-02-20 16:08:44 +03:00
parent c878333c7b
commit 062df0bc5f
1 changed files with 13 additions and 23 deletions
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36
radiant/brush_primit.cpp
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@ -1730,32 +1730,22 @@ void Texdef_transformLocked( TextureProjection& projection, std::size_t width, s
#if 0//not ok, if scaling
const Vector3 offset = matrix4_transformed_point( identity2transformed, Vector3( 0, 0, 0 ) );
Vector3 newNormal = matrix4_transformed_point( identity2transformed, plane.normal() ) - offset;
#else
Matrix4 maa( identity2transformed );
if( maa.xx() != 0 && maa.yy() != 0 && maa.zz() != 0 ){
matrix4_affine_invert( maa );
matrix4_transpose( maa );
}
else{ /* we are only performing scale alone, so this must work; sup with more complex (+non orthonormal) matrices? */
if( maa.xx() == 0 ){
maa.xx() = 1;
maa.yy() = 0;
maa.zz() = 0;
}
else if( maa.yy() == 0 ){
maa.xx() = 0;
maa.yy() = 1;
maa.zz() = 0;
}
else if( maa.zz() == 0 ){
maa.xx() = 0;
maa.yy() = 0;
maa.zz() = 1;
}
}
#elif 0
const Matrix4 maa( matrix4_transposed( matrix4_affine_inverse( identity2transformed ) ) );
// globalOutputStream() << "maa: " << maa << "\n";
Vector3 newNormal( vector3_normalised( matrix4_transformed_direction( maa, plane.normal() ) ) );
// globalOutputStream() << plane.normal() << newNormal << "\n";
#elif 1
/* this is also handling scale = 0 case */
DoubleVector3 texX, texY;
ComputeAxisBase( plane.normal(), texX, texY );
const DoubleVector3 anchor = plane.normal() * plane.dist();
DoubleVector3 points[3] = { anchor, anchor + texX, anchor + texY };
for ( std::size_t i = 0; i < 3; ++i )
matrix4_transform_point( identity2transformed, points[i] );
Vector3 newNormal( plane3_for_points( points ).normal() );
if( matrix4_handedness( identity2transformed ) == MATRIX4_LEFTHANDED )
vector3_negate( newNormal );
#endif
#if 0
// fix some rounding errors - if the old and new texture axes are almost the same, use the old axis