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Code Issues 151 Wiki Activity

fix(track): a point of a rail profile clamped to a cut edge of a lofted span is never moved past its own place nor raised past its own height, and the edges at a station are read from the side of the span being laid, so the rings at a step of an edge or at a bent mitred end no longer stretch points out of the profile and stand them up to 18 mm above the head as thin fins at the corners of wide crossings, and points of other cut rails sit exactly on the profile instead of up to a millimetre off it

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maj00r
2026-10-14 12:25:57 +02:00
parent c5df55802f
commit df192fc5e0
1 changed files with 5 additions and 4 deletions
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9
world/Segment.cpp
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@@ -639,8 +639,9 @@ bool TSegment::RenderLoftSpan( gfx::vertex_array &Output, glm::dvec3 const &Orig
auto const position { glm::vec3{ point - Origin } };
auto const parallel { glm::vec3{ across } };
auto const offset { knots::sample( Span.offsets, Distance, 0.0 ) };
auto const extent { knots::sample( Span.extents, Distance, 1e6 ) };
auto const innerextent { knots::sample( Span.inner, Distance, -1e6 ) };
auto const inward { Distance + std::copysign( 1e-6, Middle - Distance ) };
auto const extent { knots::sample( Span.extents, inward, 1e6 ) };
auto const innerextent { knots::sample( Span.inner, inward, -1e6 ) };
auto const middleextent { knots::sample( Span.extents, Middle, 1e6 ) };
auto const middleinner { knots::sample( Span.inner, Middle, -1e6 ) };
glm::vec3 outerwall { 0.f }, innerwall { 0.f };
@@ -710,7 +711,7 @@ bool TSegment::RenderLoftSpan( gfx::vertex_array &Output, glm::dvec3 const &Orig
continue;
}
auto const &other { ShapePoints[ neighbour ] };
auto const t { static_cast<float>( ( limit - reach( neighbour ) ) / ( side > 0 ? std::max( outside - reach( neighbour ), 1e-6 ) : std::min( outside - reach( neighbour ), -1e-6 ) ) ) };
auto const t { std::clamp( static_cast<float>( ( limit - reach( neighbour ) ) / ( side > 0 ? std::max( outside - reach( neighbour ), 1e-6 ) : std::min( outside - reach( neighbour ), -1e-6 ) ) ), 0.f, 1.f ) };
shape.position.y = glm::mix( other.position.y, shape.position.y, t );
shape.texture.x = glm::mix( other.texture.x, shape.texture.x, t );
auto const blend { glm::mix( other.normal, shape.normal, t ) };
@@ -744,7 +745,7 @@ bool TSegment::RenderLoftSpan( gfx::vertex_array &Output, glm::dvec3 const &Orig
shape.position.y = std::max( shape.position.y, bottom );
}
}
outside = limit;
outside = ( side > 0 ? std::min( outside, limit ) : std::max( outside, limit ) );
auto const onwall { paired ? ( false == open( partner ) && clamped( partner ) == side ) : moved == count };
if( onwall ) {
wall = ( side > 0 ? outerwall : innerwall );