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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2024-03-23 18:46:18 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2024-03-23 18:46:18 +0000 |
| commit | 7a8c0a1ac626a394a90a0a41b8a42a9c743aba8e (patch) | |
| tree | 512f51d5311f399b9a98d41675473036a8c3891e | |
| parent | Remove boundary collection (diff) | |
| download | ilt-7a8c0a1ac626a394a90a0a41b8a42a9c743aba8e.tar.bz2 ilt-7a8c0a1ac626a394a90a0a41b8a42a9c743aba8e.tar.xz ilt-7a8c0a1ac626a394a90a0a41b8a42a9c743aba8e.zip | |
Create extents purely from corner arcs
| -rw-r--r-- | game/geoData.cpp | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/game/geoData.cpp b/game/geoData.cpp index c6f7902..80a4eba 100644 --- a/game/geoData.cpp +++ b/game/geoData.cpp @@ -412,9 +412,11 @@ GeoData::setHeights(const std::span<const GlobalPosition3D> triangleStrip) std::vector<Extrusion> extrusionExtents; boundaryWalk( [this, &extrusionExtents](const auto boundaryHeh) { + const auto prevBoundaryHeh = prev_halfedge_handle(boundaryHeh); + const auto prevBoundaryVertex = from_vertex_handle(prevBoundaryHeh); const auto boundaryVertex = from_vertex_handle(boundaryHeh); const auto nextBoundaryVertex = to_vertex_handle(boundaryHeh); - const auto p0 = point(from_vertex_handle(prev_halfedge_handle(boundaryHeh))); + const auto p0 = point(prevBoundaryVertex); const auto p1 = point(boundaryVertex); const auto p2 = point(nextBoundaryVertex); const auto e0 = glm::normalize(vector_normal(RelativePosition2D(p1 - p0))); @@ -445,9 +447,9 @@ GeoData::setHeights(const std::span<const GlobalPosition3D> triangleStrip) }; // Previous half edge end to current half end start arc tangents const Arc arc {e0, e1}; - const auto limit = std::floor((arc.second - arc.first) * 5.F / pi); - const auto inc = (arc.second - arc.first) / limit; - for (float step = 1; step < limit; step += 1.F) { + const auto limit = std::ceil(arc.length() * 5.F / pi); + const auto inc = arc.length() / limit; + for (float step = 0; step <= limit; step += 1.F) { const auto direction = sincosf(arc.first + (step * inc)); VertexHandle extrusionVertex; extrusionExtents.emplace_back(boundaryVertex, extrusionVertex, @@ -455,14 +457,6 @@ GeoData::setHeights(const std::span<const GlobalPosition3D> triangleStrip) doExtrusion(extrusionVertex, direction, p1, MAX_SLOPE)); assert(extrusionVertex.is_valid()); } - // Half edge start/end tangents - for (const auto p : {boundaryVertex, nextBoundaryVertex}) { - VertexHandle extrusionVertex; - extrusionExtents.emplace_back(p, extrusionVertex, - doExtrusion(extrusionVertex, e1, point(p), -MAX_SLOPE), - doExtrusion(extrusionVertex, e1, point(p), MAX_SLOPE)); - assert(extrusionVertex.is_valid()); - } }, *voh_begin(newVerts.front())); |