59991e54f5
Brings a lot of performance improvements and bug fixes. Keyframe selection in bundle-adjustment.blend goes down from 4.5 seconds to 3.0 on M2 Ultra. The reconstruction itself stays within 0.2 seconds. Full change log can be found at http://ceres-solver.org/version_history.html Pull Request: https://projects.blender.org/blender/blender/pulls/136896
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2023 Google Inc. All rights reserved.
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// http://ceres-solver.org/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: sameeragarwal@google.com (Sameer Agarwal)
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#include "ceres/function_sample.h"
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#include "ceres/stringprintf.h"
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namespace ceres::internal {
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FunctionSample::FunctionSample()
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: x(0.0),
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vector_x_is_valid(false),
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value(0.0),
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value_is_valid(false),
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vector_gradient_is_valid(false),
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gradient(0.0),
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gradient_is_valid(false) {}
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FunctionSample::FunctionSample(const double x, const double value)
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: x(x),
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vector_x_is_valid(false),
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value(value),
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value_is_valid(true),
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vector_gradient_is_valid(false),
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gradient(0.0),
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gradient_is_valid(false) {}
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FunctionSample::FunctionSample(const double x,
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const double value,
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const double gradient)
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: x(x),
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vector_x_is_valid(false),
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value(value),
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value_is_valid(true),
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vector_gradient_is_valid(false),
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gradient(gradient),
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gradient_is_valid(true) {}
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std::string FunctionSample::ToDebugString() const {
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return StringPrintf(
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"[x: %.8e, value: %.8e, gradient: %.8e, "
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"value_is_valid: %d, gradient_is_valid: %d]",
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x,
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value,
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gradient,
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value_is_valid,
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gradient_is_valid);
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}
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} // namespace ceres::internal
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