74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public License
|
|
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
|
|
// obtain one at http://mozilla.org/MPL/2.0/.
|
|
#ifndef IGL_EMBREE_UNPROJECT_ONTO_MESH_H
|
|
#define IGL_EMBREE_UNPROJECT_ONTO_MESH_H
|
|
#include <igl/igl_inline.h>
|
|
#include <Eigen/Core>
|
|
|
|
#include <vector>
|
|
|
|
namespace igl
|
|
{
|
|
namespace embree
|
|
{
|
|
// Forward define
|
|
class EmbreeIntersector;
|
|
// Unproject a screen location (using the given model, proj and viewport) to find
|
|
// the first hit on a mesh.
|
|
//
|
|
// Inputs:
|
|
// pos screen space coordinates
|
|
// F #F by 3 face matrix
|
|
// model model matrix
|
|
// proj projection matrix
|
|
// viewport vieweport vector
|
|
// ei EmbreeIntersector containing (V,F)
|
|
// Outputs:
|
|
// fid id of the first face hit
|
|
// bc barycentric coordinates of hit
|
|
// Returns true if there is a hit
|
|
IGL_INLINE bool unproject_onto_mesh(
|
|
const Eigen::Vector2f& pos,
|
|
const Eigen::MatrixXi& F,
|
|
const Eigen::Matrix4f& model,
|
|
const Eigen::Matrix4f& proj,
|
|
const Eigen::Vector4f& viewport,
|
|
const EmbreeIntersector & ei,
|
|
int& fid,
|
|
Eigen::Vector3f& bc);
|
|
|
|
// Unproject a screen location (using the given model, proj and viewport) to find
|
|
// the first face on the mesh and the closest vertex
|
|
//
|
|
// Inputs:
|
|
// pos screen space coordinates
|
|
// F #F by 3 face matrix
|
|
// model model matrix
|
|
// proj projection matrix
|
|
// viewport vieweport vector
|
|
// ei EmbreeIntersector containing (V,F)
|
|
// Outputs:
|
|
// fid id of the first face hit
|
|
// vid vertex id of the closest vertex hit
|
|
// Returns true if there is a hit
|
|
IGL_INLINE bool unproject_onto_mesh(
|
|
const Eigen::Vector2f& pos,
|
|
const Eigen::MatrixXi& F,
|
|
const Eigen::Matrix4f& model,
|
|
const Eigen::Matrix4f& proj,
|
|
const Eigen::Vector4f& viewport,
|
|
const EmbreeIntersector & ei,
|
|
int& fid,
|
|
int& vid);
|
|
}
|
|
}
|
|
#ifndef IGL_STATIC_LIBRARY
|
|
# include "unproject_onto_mesh.cpp"
|
|
#endif
|
|
#endif
|