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Diffstat (limited to 'examples/13.RenderToTexture/main.cpp')
| -rw-r--r-- | examples/13.RenderToTexture/main.cpp | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/examples/13.RenderToTexture/main.cpp b/examples/13.RenderToTexture/main.cpp deleted file mode 100644 index 99a18ea..0000000 --- a/examples/13.RenderToTexture/main.cpp +++ /dev/null @@ -1,229 +0,0 @@ -/** Example 013 Render To Texture
-
-This tutorial shows how to render to a texture using Irrlicht. Render to
-texture is a feature where everything which would usually be rendered to
-the screen is instead written to a (special) texture. This can be used to
-create nice special effects.
-In addition, this tutorial shows how to enable specular highlights.
-
-In the beginning, everything as usual. Include the needed headers, ask the user
-for the rendering driver, create the Irrlicht device:
-*/
-
-#include <irrlicht.h>
-#include "driverChoice.h"
-#include "exampleHelper.h"
-
-using namespace irr;
-
-#ifdef _MSC_VER
-#pragma comment(lib, "Irrlicht.lib")
-#endif
-
-int main()
-{
- // ask user for driver
- video::E_DRIVER_TYPE driverType=driverChoiceConsole();
- if (driverType==video::EDT_COUNT)
- return 1;
-
- // create device and exit if creation failed
-
- IrrlichtDevice *device =
- createDevice(driverType, core::dimension2d<u32>(640, 480),
- 16, false, false);
-
- if (device == 0)
- return 1; // could not create selected driver.
-
- video::IVideoDriver* driver = device->getVideoDriver();
- scene::ISceneManager* smgr = device->getSceneManager();
- gui::IGUIEnvironment* env = device->getGUIEnvironment();
-
- const io::path mediaPath = getExampleMediaPath();
-
- /*
- Now, we load an animated mesh to be displayed. As in most examples,
- we'll take the fairy md2 model. The difference here: We set the
- shininess of the model to a value other than 0 which is the default
- value. This enables specular highlights on the model if dynamic
- lighting is on. The value influences the size of the highlights.
- */
-
- // load and display animated fairy mesh
-
- scene::IAnimatedMeshSceneNode* fairy = smgr->addAnimatedMeshSceneNode(
- smgr->getMesh(mediaPath + "faerie.md2"));
-
- if (fairy)
- {
- fairy->setMaterialTexture(0,
- driver->getTexture(mediaPath + "faerie2.bmp")); // set diffuse texture
- fairy->setMaterialFlag(video::EMF_LIGHTING, true); // enable dynamic lighting
- fairy->getMaterial(0).Shininess = 20.0f; // set size of specular highlights
- fairy->setPosition(core::vector3df(-10,0,-100));
- fairy->setMD2Animation ( scene::EMAT_STAND );
- }
-
- /*
- To make specular highlights appear on the model, we need a dynamic
- light in the scene. We add one directly in vicinity of the model. In
- addition, to make the model not that dark, we set the ambient light to
- gray.
- */
-
- // add white light
- smgr->addLightSceneNode(0, core::vector3df(-15,5,-105),
- video::SColorf(1.0f, 1.0f, 1.0f));
-
- // set ambient light
- smgr->setAmbientLight(video::SColor(0,60,60,60));
-
- /*
- The next is just some standard stuff: Add a test cube and let it rotate
- to make the scene more interesting. The user defined camera and cursor
- setup is made later on, right before the render loop.
- */
-
- // create test cube
- scene::ISceneNode* cube = smgr->addCubeSceneNode(60);
-
- // let the cube rotate and set some light settings
- scene::ISceneNodeAnimator* anim = smgr->createRotationAnimator(
- core::vector3df(0.3f, 0.3f,0));
-
- cube->setPosition(core::vector3df(-100,0,-100));
- cube->setMaterialFlag(video::EMF_LIGHTING, false); // disable dynamic lighting
- cube->addAnimator(anim);
- anim->drop();
-
- // set window caption
- device->setWindowCaption(L"Irrlicht Engine - Render to Texture and Specular Highlights example");
-
- /*
- To test out the render to texture feature, we need to define our
- new rendertarget. The rendertarget will need one texture to receive
- the result you would otherwise see on screen and one texture
- which is used as depth-buffer.
-
- (Note: If you worked with older Irrlicht versions (before 1.9) you might be
- used to only create a rendertarget texture and no explicit rendertarget. While
- that's still possible, it's no longer recommended.)
-
- The rendertarget textures are not like standard textures, but need to be created
- first. To create them, we call IVideoDriver::addRenderTargetTexture()
- and specify the size of the texture and the type.
- For depth-maps you can use types ECF_D16, ECF_D32 or ECF_D24S8. When ECF_D24S8
- you can also use a stencil-buffer.
-
- Because we want to render the scene not from the user camera into the
- texture, we add another fixed camera to the scene. But before we do all
- this, we check if the current running driver is able to render to
- textures. If it is not, we simply display a warning text.
- */
-
- // create render target
- video::IRenderTarget* renderTarget = 0;
- scene::ICameraSceneNode* fixedCam = 0;
-
- if (driver->queryFeature(video::EVDF_RENDER_TO_TARGET))
- {
- const core::dimension2d<u32> rtDim(256, 256); // always use same size for render target texture and it's depth-buffer
- video::ITexture* renderTargetTex = driver->addRenderTargetTexture(rtDim, "RTT1", video::ECF_A8R8G8B8);
- video::ITexture* renderTargetDepth = driver->addRenderTargetTexture(rtDim, "DepthStencil", video::ECF_D16);
-
- renderTarget = driver->addRenderTarget();
- renderTarget->setTexture(renderTargetTex, renderTargetDepth);
-
- cube->setMaterialTexture(0, renderTargetTex); // set material of cube to render target
-
- // add fixed camera
- fixedCam = smgr->addCameraSceneNode(0, core::vector3df(10,10,-80),
- core::vector3df(-10,10,-100));
- }
- else
- {
- // create problem text
- gui::IGUISkin* skin = env->getSkin();
- gui::IGUIFont* font = env->getFont(mediaPath + "fonthaettenschweiler.bmp");
- if (font)
- skin->setFont(font);
-
- gui::IGUIStaticText* text = env->addStaticText(
- L"Your hardware or this renderer is not able to use the "\
- L"render to texture feature. RTT Disabled.",
- core::rect<s32>(150,20,470,60));
-
- text->setOverrideColor(video::SColor(100,255,255,255));
- }
-
- // add fps camera
- scene::ICameraSceneNode* fpsCamera = smgr->addCameraSceneNodeFPS();
- fpsCamera->setPosition(core::vector3df(-50,50,-150));
-
- // disable mouse cursor
- device->getCursorControl()->setVisible(false);
-
- /*
- Nearly finished. Now we need to draw everything. Every frame, we draw
- the scene twice. Once from the fixed camera into the render target
- texture and once as usual. When rendering into the render target, we
- need to disable the visibility of the test cube, because it has the
- render target texture applied to it. That's it, wasn't too complicated
- I hope. :)
- */
-
- int lastFPS = -1;
-
- while(device->run())
- if (device->isWindowActive())
- {
- driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(0));
-
- if (renderTarget)
- {
- // draw scene into render target
-
- // set render target
- driver->setRenderTargetEx(renderTarget, video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(0,0,0,255));
-
- // make cube invisible and set fixed camera as active camera
- cube->setVisible(false);
- smgr->setActiveCamera(fixedCam);
-
- // draw whole scene into render buffer
- smgr->drawAll();
-
- // set back old render target (the screen)
- driver->setRenderTargetEx(0, 0);
-
- // make the cube visible and set the user controlled camera as active one
- cube->setVisible(true);
- smgr->setActiveCamera(fpsCamera);
- }
-
- // draw scene normally
- smgr->drawAll();
- env->drawAll();
-
- driver->endScene();
-
- // display frames per second in window title
- int fps = driver->getFPS();
- if (lastFPS != fps)
- {
- core::stringw str = L"Irrlicht Engine - Render to Texture and Specular Highlights example";
- str += " FPS:";
- str += fps;
-
- device->setWindowCaption(str.c_str());
- lastFPS = fps;
- }
- }
-
- device->drop(); // drop device
- return 0;
-}
-
-/*
-**/
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