Differential D15125 Diff 52260 source/blender/geometry/intern/reverse_uv_lookup.cc

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				/* SPDX-License-Identifier: GPL-2.0-or-later */

				#include "GEO_reverse_uv_lookup.hh"

				#include "BLI_math_geom.h"

				namespace blender::geometry {

				ReverseUVLookup::ReverseUVLookup(const Span<float2> uv_map, const Span<MLoopTri> looptris)
				: uv_map_(uv_map), looptris_(looptris)
				{
				}

				ReverseUVLookup::Result ReverseUVLookup::lookup(const float2 &query_uv) const
				{
				for (const MLoopTri &looptri : looptris_) {
				const float2 &uv0 = uv_map_[looptri.tri[0]];
				const float2 &uv1 = uv_map_[looptri.tri[1]];
				const float2 &uv2 = uv_map_[looptri.tri[2]];
				float3 bary_weights;
				if (!barycentric_coords_v2(uv0, uv1, uv2, query_uv, bary_weights)) {
				continue;
				}
				if (IN_RANGE_INCL(bary_weights.x, 0.0f, 1.0f) && IN_RANGE_INCL(bary_weights.y, 0.0f, 1.0f) &&
				IN_RANGE_INCL(bary_weights.z, 0.0f, 1.0f)) {
				HooglyBooglyUnsubmitted Not Done Inline Actions Would be nice to have C++ implementations of these C math functions and macros, but I'm fine with waiting for that if you'd like. HooglyBoogly: Would be nice to have C++ implementations of these C math functions and macros, but I'm fine…
				return Result{ResultType::Ok, &looptri, bary_weights};
				}
				}
				return Result{};
				}

				} // namespace blender::geometry