irrlicht/tests/planeMatrix.cpp

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// Copyright (C) 2008-2012 Colin MacDonald
// No rights reserved: this software is in the public domain.
#include "testUtils.h"
using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
using namespace io;
using namespace gui;
// There's all sorts of minor and inevitable FP accuracy errors here, so use a sloppy comparison.
static bool sloppyComparePlanes(const plane3df plane1, const plane3df plane2)
{
return(equals(plane1.D, plane2.D, 0.001f) &&
equals(plane1.Normal.X, plane2.Normal.X, 0.001f) &&
equals(plane1.Normal.Y, plane2.Normal.Y, 0.001f) &&
equals(plane1.Normal.Z, plane2.Normal.Z, 0.001f));
}
static bool transformPlane(const vector3df & point, const vector3df & normal,
const matrix4 & matrix, const plane3df & expected)
{
plane3df plane(point, vector3df(normal).normalize());
logTestString("\n Pre N:(%.3ff,%.3ff,%.3ff), D:%.3ff\n",
plane.Normal.X, plane.Normal.Y, plane.Normal.Z, plane.D);
matrix.transformPlane(plane);
logTestString(" Post N:(%.3ff,%.3ff,%.3ff), D:%.3ff\n",
plane.Normal.X, plane.Normal.Y, plane.Normal.Z, plane.D);
logTestString("Expected N:(%.3ff,%.3ff,%.3ff), D:%.3ff\n",
expected.Normal.X, expected.Normal.Y, expected.Normal.Z, expected.D);
if(!plane.Normal.equals(vector3df(plane.Normal).normalize()))
{
logTestString("Plane normal no longer normalized after transformation\n");
assert_log(false);
return false;
}
if(!sloppyComparePlanes(plane, expected))
{
logTestString("Unexpected result\n");
assert_log(false);
return false;
}
return true;
}
static bool drawScaledOctree(void)
{
bool result = false;
IrrlichtDevice *device = createDevice(video::EDT_BURNINGSVIDEO, dimension2d<u32>(160, 120), 32);
if (!device)
return false;
video::IVideoDriver* driver = device->getVideoDriver();
ISceneManager * smgr = device->getSceneManager();
bool added = device->getFileSystem()->addFileArchive("../media/map-20kdm2.pk3");
assert_log(added);
if(added)
{
ISceneNode * node = smgr->addOctreeSceneNode(smgr->getMesh("20kdm2.bsp")->getMesh(0), 0, -1, 1024);
assert_log(node);
if (node)
{
node->setMaterialFlag(EMF_LIGHTING, false);
node->setPosition(core::vector3df(-1300,-820,-1249));
node->setScale(core::vector3df(1, 5, 1));
(void)smgr->addCameraSceneNode(0, core::vector3df(0,0,0), core::vector3df(40,100,30));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,255,255,0));
smgr->drawAll();
driver->endScene();
result = takeScreenshotAndCompareAgainstReference(driver, "-planeMatrix-scaledClip.png");
}
}
device->closeDevice();
device->run();
device->drop();
return result;
}
// Test the ability to transform a plane with a matrix.
bool planeMatrix(void)
{
matrix4 rotationMatrix;
rotationMatrix.setRotationDegrees(vector3df(90, 0, 0));
matrix4 translationMatrix;
translationMatrix.setTranslation(vector3df(0, 3, 0));
matrix4 scaleMatrix;
scaleMatrix.setScale(vector3df(1, 2, 3));
bool success = true;
matrix4 matrix = rotationMatrix;
logTestString("\nRotation matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-.707f, 0.f, -.707f), 0.f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(.707f, 0.f, .707f), 0.f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-.707f, 0.f, .707f), 0.f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(.707f, 0.f, -.707f), 0.f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-.707f, 0.f, -.707f), .707f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(.707f, 0.f, .707f), -.707f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-.707f, 0.f, .707f), -.707f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(.707f, 0.f, -.707f), .707f));
matrix = translationMatrix;
logTestString("\nTranslation matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,-0.707f,0.000f), 2.121f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,0.707f,0.000f), -2.121f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,0.707f,0.000f), -2.121f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,-0.707f,0.000f), 2.121f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,-0.707f,0.000f), 2.828f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,0.707f,0.000f), -2.828f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,0.707f,0.000f), -2.828f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,-0.707f,0.000f), 2.828f));
matrix = scaleMatrix;
logTestString("\nScale matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,-0.354f,0.000f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,0.354f,0.000f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,0.354f,0.000f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,-0.354f,0.000f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,-0.354f,0.000f).normalize(), 0.894f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,0.354f,0.000f).normalize(), -0.894f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,0.354f,0.000f).normalize(), -0.894f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,-0.354f,0.000f).normalize(), 0.894f));
matrix = rotationMatrix * translationMatrix;
logTestString("\nRotation * translation matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,0.000f,-0.707f).normalize(), 2.121f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,-0.000f,0.707f).normalize(), -2.121f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,-0.000f,0.707f).normalize(), -2.121f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,0.000f,-0.707f).normalize(), 2.121f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,0.000f,-0.707f).normalize(), 2.828f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,-0.000f,0.707f).normalize(), -2.828f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,-0.000f,0.707f).normalize(), -2.828f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,0.000f,-0.707f).normalize(), 2.828f));
matrix = rotationMatrix * scaleMatrix;
logTestString("\nRotation * scale matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,0.000f,-0.354f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,-0.000f,0.354f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,-0.000f,0.354f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,0.000f,-0.354f).normalize(), -0.000f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,0.000f,-0.354f).normalize(), 0.894f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,-0.000f,0.354f).normalize(), -0.894f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,-0.000f,0.354f).normalize(), -0.894f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,0.000f,-0.354f).normalize(), 0.894f));
matrix = translationMatrix * scaleMatrix;
logTestString("\nTranslation * scale matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,-0.354f,0.000f).normalize(), 1.3416f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,0.354f,0.000f).normalize(), -1.3416f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,0.354f,0.000f).normalize(), -1.3416f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,-0.354f,0.000f).normalize(), 1.3416f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,-0.354f,0.000f).normalize(), 2.236f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,0.354f,0.000f).normalize(), -2.236f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,0.354f,0.000f).normalize(), -2.236f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,-0.354f,0.000f).normalize(), 2.236f));
matrix = rotationMatrix * translationMatrix * scaleMatrix;
logTestString("\nRotation * translation * scale matrix\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f"
"\n%02.02f %02.02f %02.02f %02.02f\n",
matrix[0], matrix[1], matrix[2], matrix[3],
matrix[4], matrix[5], matrix[6], matrix[7],
matrix[8], matrix[9], matrix[10], matrix[11],
matrix[12], matrix[13], matrix[14], matrix[15]);
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,0.000f,-0.354f).normalize(), 1.3416f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,-0.000f,0.354f).normalize(), -1.3416f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,-0.000f,0.354f).normalize(), -1.3416f));
success &= transformPlane(vector3df(0, 0, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,0.000f,-0.354f).normalize(), 1.3416f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, -1, 0), matrix, plane3df(vector3df(-0.707f,0.000f,-0.354f).normalize(), 2.236f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, 1, 0), matrix, plane3df(vector3df(0.707f,-0.000f,0.354f).normalize(), -2.236f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(-1, 1, 0), matrix, plane3df(vector3df(-0.707f,-0.000f,0.354f).normalize(), -2.236f));
success &= transformPlane(vector3df(0, 1, 0), vector3df(1, -1, 0), matrix, plane3df(vector3df(0.707f,0.000f,-0.354f).normalize(), 2.236f));
success &= drawScaledOctree();
return success;
}