vtk读取3ds文件并显示c++版本

 vtk提供了很方便的函数可以读取3ds文件，这种文件是3dmax软件制作的三维物件，之前的别人的文章写了python版本的读取和显示的代码，这里翻译成了c++版本的。

VTK imported and displayed in STL, 3DS file - Programmer Sought

VTK中导入并显示STL、3DS文件_weixin_34115824的博客-CSDN博客

官方也给了3ds文件的c++例子

https://kitware.github.io/vtk-examples/site/Cxx/IO/3DSImporter/

 

这次从爱给下载了3ds文件，Original VW Beetle 大众甲壳虫_3ds|max - 大小:1m-3d模型_3dMax|3ds|obj-免费下载-爱给网 (aigei.com)

具体的c++代码如下：

#include <vtk3DSImporter.h>
#include <vtkNew.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>

/*
# This example demonstrates the use of vtk3DSImporter.
# vtk3DSImporter is used to load 3D Studio files.Unlike writers,
# importers can load scenes(data as well as lights, cameras, actors
	# etc.).Importers will either generate an instance of vtkRenderWindow
	#and /or vtkRenderer or will use the ones you specify.
*/
#include "vtkAutoInit.h"
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle);
VTK_MODULE_INIT(vtkRenderingFreeType);

int main(int argc, char* argv[]) {

	if (argc != 2)
	{
		cout << "Required parameters: Filename" << endl;
		return EXIT_FAILURE;
	}

	vtkNew<vtk3DSImporter> importer;
	importer->SetFileName(argv[1]);
	importer->ComputeNormalsOn();
	importer->Read();

	//# Here we let the importer create a renderer and a render window for
	//# us.We could have also createand assigned those ourselves like so :
	//# renWin = vtk.vtkRenderWindow()
	//# importer.SetRenderWindow(renWin)

	//# Assign an interactor.
	//# We have to ask the importer for it's render window.
	auto renWin = importer->GetRenderWindow();
	vtkNew<vtkRenderWindowInteractor> iren;
	iren->SetRenderWindow(renWin);

	//# Set the render window's size
	renWin->SetSize(500, 500);

	//# Set some properties on the renderer.
	//# We have to ask the importer for it's renderer.
	auto ren = importer->GetRenderer();
	ren->SetBackground(0.1, 0.2, 0.4);

	iren->Initialize();
	renWin->Render();
	iren->Start();

	return EXIT_SUCCESS;
}

 显示效果如下