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https://github.com/minetest/irrlicht.git
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87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
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// Copyright (C) 2008-2012 Christian Stehno, Colin MacDonald
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// No rights reserved: this software is in the public domain.
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#include "testUtils.h"
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using namespace irr;
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using namespace core;
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using namespace scene;
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using namespace video;
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using namespace io;
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using namespace gui;
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//! Tests projection matrices
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static bool runTestWithDriver(E_DRIVER_TYPE driverType)
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{
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IrrlichtDevice *device = createDevice( driverType, dimension2d<u32>(160, 120), 32);
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if (!device)
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return true; // Treat a failure to create a driver as benign; this saves a lot of #ifdefs
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IVideoDriver* driver = device->getVideoDriver();
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stabilizeScreenBackground(driver);
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logTestString("Testing driver %ls\n", driver->getName());
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bool result = true;
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driver->beginScene(video::ECBF_COLOR, SColor(255,0,0,0));
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SMaterial mat;
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mat.MaterialType = EMT_SOLID;
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mat.Lighting = false;
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mat.ZBuffer = false;
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mat.ZWriteEnable = video::EZW_OFF;
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mat.Thickness = 1;
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driver->setMaterial(mat);
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core::dimension2d<f32> dims(driver->getCurrentRenderTargetSize());
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//apply custom projection, no offset
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core::matrix4 pmtx = matrix4().buildProjectionMatrixOrthoLH(dims.Width, dims.Height, 0, 100);
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driver->setTransform(ETS_PROJECTION, pmtx);
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driver->setTransform(ETS_VIEW, matrix4());
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driver->setTransform(ETS_WORLD, matrix4());
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//the red cross appears at center
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for (u32 i=0; i<10; ++i)
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{
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driver->draw3DLine(vector3df(0.f+i,-50.f,1.f), vector3df(0.f+i,50.f,1.f), SColor(255,255,0,0));
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driver->draw3DLine(vector3df(-50.f,0.f+i,1.f), vector3df(50.f,0.f+i,1.f), SColor(255,255,0,0));
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}
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//apply custom projection, offset to right-top
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pmtx.setTranslation(vector3df(0.7f, 0.7f, 0.f));
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driver->setTransform(ETS_PROJECTION, pmtx);
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driver->setTransform(ETS_VIEW, matrix4());
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driver->setTransform(ETS_WORLD, matrix4());
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//The green cross must be in right-top corner. But for OpenGL driver it is in left-top corner
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for (u32 i=0; i<10; ++i)
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{
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driver->draw3DLine(vector3df(0.f+i,-50,1), vector3df(0.f+i,50,1), SColor(255,0,255,0));
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driver->draw3DLine(vector3df(-50,0.f+i,1), vector3df(50,0.f+i,1), SColor(255,0,255,0));
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}
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driver->endScene();
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result = takeScreenshotAndCompareAgainstReference(driver, "-projMat.png", 98.71f);
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device->closeDevice();
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device->run();
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device->drop();
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return result;
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}
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bool projectionMatrix(void)
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{
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bool result = true;
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// TODO: Seems that software driver does not handle this projection matrix
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TestWithAllDrivers(runTestWithDriver);
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return result;
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}
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