C++ IVideoDriver::getGPUProgrammingServices方法代码示例

int main( ) {
	// Boring stuff: set up the scene, object & camera as usual
	// To make things more interesting, we add many Sydneys and a textured floor this time
	IrrlichtDevice* device = createDevice( DRIVER, dimension2d<s32>( 640, 480 ), 16, false, false, false, 0 );
	IVideoDriver* driver = device->getVideoDriver( );
	ISceneManager* smgr = device->getSceneManager( );
	IGUIEnvironment* guienv = device->getGUIEnvironment( );
	device->getFileSystem( )->changeWorkingDirectoryTo( MEDIA_DIRECTORY );
	guienv->addStaticText( L"Depth of Field", rect<s32>( 10, 10, 260, 22 ), true );
	IAnimatedMesh* mesh = smgr->getMesh("sydney.md2");

	// Create the required material. This is a simple shader which draws the texture with no lights.
	// Use GL_PLAIN1 / DX_PLANE1 or GL_PLAIN2 / DX_PLANE2 to support 1 or 2 basic point-lights
	u32 matid;
	IGPUProgrammingServices* gpu = driver->getGPUProgrammingServices( );
	switch( driver->getDriverType( ) ) {
		case EDT_OPENGL:
			matid = gpu->addHighLevelShaderMaterial( GL_V_MAT, "main", EVST_VS_1_1, GL_PLAIN, "main", EPST_PS_1_1, new CTexturesShaderCallback( ), EMT_SOLID, 1 );
			break;
		case EDT_DIRECT3D8:
		case EDT_DIRECT3D9:
		default:
			matid = gpu->addHighLevelShaderMaterial( DX_V_MAT, "main", EVST_VS_1_1, DX_PLAIN, "main", EPST_PS_2_0, new CTexturesShaderCallback( ), EMT_SOLID, 0 );
	}

	for( u8 x = 0u; x != 2u; ++ x )
		for( u8 i = 0u; i != 5u; ++ i ) {
			IAnimatedMeshSceneNode* node = smgr->addAnimatedMeshSceneNode( mesh );
			node->setMaterialFlag(EMF_LIGHTING, false);
			node->setMD2Animation(scene::EMAT_STAND);
			node->setMaterialTexture( 0, driver->getTexture("sydney.bmp") );
			node->setMaterialType( (E_MATERIAL_TYPE) matid );
			node->setPosition( vector3df( -x * 20.0f, 0.0f, i * 40.0f ) );
		}
	ISceneNode* node2 = smgr->addMeshSceneNode( smgr->addHillPlaneMesh( "", dimension2df( 200.0f, 200.0f ), dimension2d<u32>( 10, 10 ), NULL, 0.0f, dimension2df( 0.0f, 0.0f ), dimension2df( 100.0f, 100.0f ) ) );
	node2->setMaterialFlag(EMF_LIGHTING, false);
	node2->setMaterialTexture( 0, driver->getTexture("terrain-heightmap.bmp") );
	node2->setMaterialType( (E_MATERIAL_TYPE) matid );
	node2->setPosition( vector3df( 0.0f, -22.0f, 0.0f ) );
	ICameraSceneNode* cam = smgr->addCameraSceneNode( 0, vector3df( 40.0f, 60.0f, -40.0f ), vector3df( 0.0f, 5.0f, 50.0f ) );

	IPostProc* ppRenderer = new CRendererPostProc( smgr, dimension2di( 1024, 512 ), true, true, SColor( 255u, 100u, 101u, 140u ) );
	CEffectPostProc* ppBlurDOF = new CEffectPostProc( ppRenderer, dimension2di( 1024, 512 ), PP_BLURDOF );
	// We could set parameters on creation, but no need since we will animate it anyway.
	// Parameters are: near blur, near focus, far focus, far blur, blur level
	// You can also use PP_BLURDOFNEAR or PP_BLURDOFFAR to have only near or far blurring

	// These variables aren't important - they are just for showing the FPS
	wchar_t tmp[255]; u8 t = 0u;

	while( device->run( ) ) {
		// Change the camera angle
		cam->setTarget( vector3df( -(device->getCursorControl( )->getPosition( ).X - 320.0f) * 0.1f, (device->getCursorControl( )->getPosition( ).Y - 240.0f) * 0.2f, 0.0f ) );

		// Animate the depth of field:
		f32 p = sinf( device->getTimer( )->getTime( ) * 0.0005f ) * 0.5f - 0.2f;
		ppBlurDOF->setParameters( p * 100.0f + 80.0f, p * 100.0f + 110.0f, p * 100.0f + 160.0f, p * 100.0f + 240.0f, 0.01f );

		driver->beginScene( false, driver->getDriverType( ) == video::EDT_DIRECT3D9 );
		ppBlurDOF->render( NULL );
		guienv->drawAll( );
		driver->endScene( );

		// Show the current FPS
		if( ++ t == 30u ) { t = 0u; swprintf(tmp, 255, L"%ls fps:%3d", driver->getName(), driver->getFPS() ); device->setWindowCaption( tmp ); }
	}

	delete ppBlurDOF;
	delete ppRenderer;

	// Back to boring stuff
	device->drop();
	return 0;
}

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

	// Help?
	if (argv[1] && argv[1][0] == '-') die(helpmsg);

	putenv((char *) "vblank_mode=0"); // No vsync for us, thanks.

	MyEventReceiver *r = new MyEventReceiver();
	IrrlichtDevice *dev = createDevice(EDT_OPENGL, core::dimension2d<u32>(1024,768), 32,
				false, false, false, r);
	if (!dev) die("Can't initialize Irrlicht");

	IVideoDriver *drv = dev->getVideoDriver();
	ISceneManager *smgr = dev->getSceneManager();
	IGPUProgrammingServices *gpu = drv->getGPUProgrammingServices();
	ICameraSceneNode *cam = NULL;
	ITexture *pic = NULL;
	IMeshSceneNode *ball = NULL;
	bool showpic = false;

	IReadFile *areamap = createMemoryReadFile(AreaMap33, sizeof(AreaMap33), "AreaMap33", false);
	if (!areamap) die("Failed to load areamap");
	ITexture *areamaptex = drv->getTexture(areamap);
	areamap->drop();

	// If there's an argument, assume it is a pic to load; otherwise, draw a sphere

	if (argv[1] && access(argv[1], R_OK) == 0) {
		showpic = true;
		pic = drv->getTexture(argv[1]);
		if (!pic) die("Can't load image");

		cam = smgr->addCameraSceneNode();
	} else {
		cam = smgr->addCameraSceneNodeMaya();
		cam->setTarget(vector3df(0, 0, 0));
		ball = smgr->addSphereSceneNode(40, 8);

		int ballshader = gpu->addHighLevelShaderMaterial(rnd,0,EVST_VS_1_1,0);
		ball->setMaterialType((E_MATERIAL_TYPE) ballshader);

		ISceneNodeAnimator *cool = smgr->createRotationAnimator(vector3df(-0.1, 0.1, -0.1));
		ball->addAnimator(cool);
		cool->drop();
	}

	// Set up static defines, RTTs, quads
	dimension2d<u32> screensize = drv->getScreenSize();
	char defines[128];
	snprintf(defines, 128,
		"#define PIXEL_SIZE vec2(1.0f / %u.0, 1.0f / %u.0)\n"
		"#define MAX_SEARCH_STEPS 8.0\n#define MAX_DISTANCE 33.0\n",
		screensize.Width, screensize.Height);

	ITexture *rt1 = drv->addRenderTargetTexture(screensize, "rt1", ECF_A8R8G8B8);
	ITexture *rt2 = drv->addRenderTargetTexture(screensize, "rt2", ECF_A8R8G8B8);
	ITexture *rt3 = drv->addRenderTargetTexture(screensize, "rt3", ECF_A8R8G8B8);
	if (!rt1 || !rt2 || !rt3) die("No RTT");

	ScreenQuad *def = new ScreenQuad(drv);
	ScreenQuad *sq = new ScreenQuad(drv);
	ScreenQuad *sq2 = new ScreenQuad(drv);
	ScreenQuad *sq3 = new ScreenQuad(drv);
	ScreenQuad *norm = new ScreenQuad(drv);
	if (showpic) def->SetTexture(pic);
	sq->SetTexture(rt1);
	sq->GetMaterial().setFlag(EMF_BILINEAR_FILTER, false);
	norm->SetTexture(rt1);
	norm->GetMaterial().setFlag(EMF_BILINEAR_FILTER, false);

	sq2->SetTexture(rt2);
	sq2->SetTexture(rt2, 1);
	sq2->SetTexture(areamaptex, 2);
	sq2->GetMaterial().TextureLayer[2].BilinearFilter = false;

	sq3->SetTexture(rt3);
	sq3->GetMaterial().setFlag(EMF_BILINEAR_FILTER, false);
	sq3->SetTexture(rt1,1);
	state_t state = MLAA_OFF;

	stringc tmp1, tmp2;
	tmp1 = defines;
	tmp1 += offsetvs;
	tmp2 = defines;
	tmp2 += color1fs;

	// Load shaders
	int edge = gpu->addHighLevelShaderMaterial(tmp1.c_str(),0,EVST_VS_1_1,tmp2.c_str());
	sq->SetMaterialType((E_MATERIAL_TYPE) edge);

	tmp2 = defines;
	tmp2 += blend2fs;

	blendcb *bcb = new blendcb();
	edge = gpu->addHighLevelShaderMaterial(tmp1.c_str(),0,EVST_VS_1_1,tmp2.c_str(),0,EPST_PS_1_1,bcb);
	sq2->SetMaterialType((E_MATERIAL_TYPE) edge);

	tmp2 = defines;
	tmp2 += neigh3fs;

//.........这里部分代码省略.........