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#include<iostream>
#include "instancing.hh"
// "unwrap" the instancing
coot::simple_mesh_t
coot::instanced_mesh_to_simple_mesh(const coot::instanced_mesh_t &im) {
coot::simple_mesh_t sm = im.markup;
// now add to sm
std::cout << "debug:: instanced_mesh_to_simple_mesh() geom.size() " << im.geom.size() << std::endl;
for (unsigned int ig=0; ig<im.geom.size(); ig++) {
const auto &g = im.geom[ig];
std::cout << "g: " << ig << " " << g.vertices.size() << " " << g.triangles.size()
<< " A " << g.instancing_data_A.size() << " "
<< " B " << g.instancing_data_B.size() << std::endl;
for (unsigned int iA=0; iA<g.instancing_data_A.size(); iA++) {
std::vector<api::vnc_vertex> vertices;
std::vector<g_triangle> triangles = g.triangles;
unsigned int idx_base = sm.vertices.size();
unsigned int idx_tri_base = sm.triangles.size();
for (unsigned int iv=0; iv<g.vertices.size(); iv++) {
auto &v_ref = g.vertices[iv];
auto &col = g.instancing_data_A[iA].colour;
api::vnc_vertex v(v_ref.pos * g.instancing_data_A[iA].size, v_ref.normal, col);
v.pos += g.instancing_data_A[iA].position;
vertices.push_back(v);
}
sm.vertices.insert(sm.vertices.end(), vertices.begin(), vertices.end());
sm.triangles.insert(sm.triangles.end(), triangles.begin(), triangles.end());
for (unsigned int k=idx_tri_base; k<sm.triangles.size(); k++)
sm.triangles[k].rebase(idx_base);
}
for (unsigned int iB=0; iB<g.instancing_data_B.size(); iB++) {
std::vector<api::vnc_vertex> vertices;
std::vector<g_triangle> triangles = g.triangles;
unsigned int idx_base = sm.vertices.size();
unsigned int idx_tri_base = sm.triangles.size();
for (unsigned int iv=0; iv<g.vertices.size(); iv++) {
auto &v_ref = g.vertices[iv];
auto &col = g.instancing_data_B[iB].colour;
auto &size = g.instancing_data_B[iB].size;
auto &ori = g.instancing_data_B[iB].orientation;
auto &instpos = g.instancing_data_B[iB].position;
api::vnc_vertex v(v_ref.pos * size, v_ref.normal, col);
glm::vec4 p(v.pos, 1.0);
glm::vec4 pr = ori * p;
v.pos = glm::vec3(pr);
v.pos += instpos;
vertices.push_back(v);
}
sm.vertices.insert(sm.vertices.end(), vertices.begin(), vertices.end());
sm.triangles.insert(sm.triangles.end(), triangles.begin(), triangles.end());
for (unsigned int k=idx_tri_base; k<sm.triangles.size(); k++)
sm.triangles[k].rebase(idx_base);
}
}
std::cout << "debug:: instanced_mesh_to_simple_mesh() vertices " << sm.vertices.size()
<< " triangles " << sm.triangles.size() << std::endl;
return sm;
}
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