void Mesh::enable_debug(bool value) {
if(value) {
if(normal_debug_mesh_) return;
//This maintains a lock on the material
MaterialID mid = resource_manager().new_material();
resource_manager().window->loader_for(
"material_loader",
Material::BuiltIns::DIFFUSE_ONLY
)->into(resource_manager().material(mid));
normal_debug_mesh_ = new_submesh_with_material("__debug__", mid, MESH_ARRANGEMENT_LINES, VERTEX_SHARING_MODE_INDEPENDENT);
//Go through the submeshes, and for each index draw a normal line
each([=](const std::string& name, SubMesh* mesh) {
for(uint16_t idx: mesh->index_data->all()) {
Vec3 pos1 = mesh->vertex_data->position_at<Vec3>(idx);
Vec3 n;
mesh->vertex_data->normal_at(idx, n);
kmVec3Scale(&n, &n, 10.0);
kmVec3 pos2;
kmVec3Add(&pos2, &pos1, &n);
normal_debug_mesh_->vertex_data->position(pos1);
normal_debug_mesh_->vertex_data->diffuse(smlt::Colour::RED);
int16_t next_index = normal_debug_mesh_->vertex_data->move_next();
normal_debug_mesh_->index_data->index(next_index - 1);
normal_debug_mesh_->vertex_data->position(pos2);
normal_debug_mesh_->vertex_data->diffuse(smlt::Colour::RED);
next_index = normal_debug_mesh_->vertex_data->move_next();
normal_debug_mesh_->index_data->index(next_index - 1);
}
});
normal_debug_mesh_->vertex_data->done();
normal_debug_mesh_->index_data->done();
} else {
if(normal_debug_mesh_) {
delete_submesh(normal_debug_mesh_->name());
normal_debug_mesh_ = nullptr;
}
}
}
void Debug::update() {
double dt = stage_.window().delta_time();
std::vector<DebugElement> to_keep;
for(auto elem: elements_) {
elem.time_since_created += dt;
if(elem.time_since_created >= elem.duration) {
auto mesh = stage_.mesh(mesh_);
mesh->delete_submesh(elem.submesh);
} else {
to_keep.push_back(elem);
}
}
elements_ = to_keep;
}
