irrlicht/tests/transparentMaterials.cpp

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// Copyright (C) 2008-2012 Christian Stehno, 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;
//! Check that EMT_TRANSPARENT_ALPHA_CHANNEL_REF works as expected
bool testTransparentAlphaChannelRef(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice* device = createDevice(driverType, core::dimension2d<u32>(160, 120), 32);
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
if (driver->getColorFormat() != video::ECF_A8R8G8B8)
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
driver->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);
ISceneNode * backCube = smgr->addCubeSceneNode();
backCube->setPosition(vector3df(0, 0, 10));
backCube->setScale(vector3df(5, 5, 1));
backCube->setMaterialTexture(0, driver->getTexture("../media/wall.bmp"));
backCube->setMaterialType(video::EMT_SOLID);
backCube->setMaterialFlag(video::EMF_LIGHTING, false);
ISceneNode * frontCube = smgr->addCubeSceneNode();
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
(void)smgr->addCameraSceneNode(0, vector3df(0, 0, -15));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,113,113,133));
smgr->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-transparentAlphaChannelRef.png", 99.18f);
device->closeDevice();
device->run();
device->drop();
return result;
}
//! Check that EMT_TRANSPARENT_ALPHA_CHANNEL works as expected
bool testTransparentAlphaChannel(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice* device = createDevice(driverType, core::dimension2d<u32>(160, 120), 32);
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
if (driver->getColorFormat() != video::ECF_A8R8G8B8)
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
driver->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);
ISceneNode * backCube = smgr->addCubeSceneNode();
backCube->setPosition(vector3df(0, 0, 10));
backCube->setScale(vector3df(5, 5, 1));
backCube->setMaterialTexture(0, driver->getTexture("../media/wall.bmp"));
backCube->setMaterialType(video::EMT_SOLID);
backCube->setMaterialFlag(video::EMF_LIGHTING, false);
ISceneNode * frontCube = smgr->addCubeSceneNode();
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
(void)smgr->addCameraSceneNode(0, vector3df(0, 0, -15));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,113,113,133));
smgr->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-transparentAlphaChannel.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
//! Check that EMT_TRANSPARENT_VERTEX_ALPHA works as expected
bool testTransparentVertexAlpha(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice* device = createDevice(driverType, core::dimension2d<u32>(160, 120), 32);
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
if (driver->getColorFormat() != video::ECF_A8R8G8B8)
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
driver->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);
ISceneNode * backCube = smgr->addCubeSceneNode();
backCube->setPosition(vector3df(0, 0, 10));
backCube->setScale(vector3df(5, 5, 1));
backCube->setMaterialTexture(0, driver->getTexture("../media/wall.bmp"));
// vertex color has alpha 255, hence solid
backCube->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA);
backCube->setMaterialFlag(video::EMF_LIGHTING, false);
IMeshSceneNode * frontCube = smgr->addCubeSceneNode(10,0,-1,core::vector3df(-10,0,0));
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
driver->getMeshManipulator()->setVertexColorAlpha(frontCube->getMesh(), 128);
frontCube = smgr->addCubeSceneNode(10,0,-1,core::vector3df(10,0,0));
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
driver->getMeshManipulator()->setVertexColorAlpha(frontCube->getMesh(), 45);
(void)smgr->addCameraSceneNode(0, vector3df(0, 0, -15));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,113,113,133));
smgr->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-transparentVertexAlpha.png", 98.76f);
device->closeDevice();
device->run();
device->drop();
return result;
}
//! Check that EMT_TRANSPARENT_REFLECTION_2_LAYER works as expected
bool testTransparentReflection2Layer(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice* device = createDevice(driverType, core::dimension2d<u32>(160, 120), 32);
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
if (driver->getColorFormat() != video::ECF_A8R8G8B8)
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
driver->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);
ISceneNode * backCube = smgr->addCubeSceneNode();
backCube->setPosition(vector3df(0, 0, 10));
backCube->setScale(vector3df(5, 5, 1));
backCube->setMaterialTexture(0, driver->getTexture("../media/wall.bmp"));
backCube->setMaterialTexture(1, driver->getTexture("../media/water.jpg"));
// vertex color has alpha 255, hence solid
backCube->setMaterialType(video::EMT_TRANSPARENT_REFLECTION_2_LAYER);
backCube->setMaterialFlag(video::EMF_LIGHTING, false);
IMeshSceneNode * frontCube = smgr->addCubeSceneNode(10,0,-1,core::vector3df(-10,0,0));
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialTexture(1, driver->getTexture("../media/water.jpg"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_REFLECTION_2_LAYER);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
driver->getMeshManipulator()->setVertexColorAlpha(frontCube->getMesh(), 128);
frontCube = smgr->addCubeSceneNode(10,0,-1,core::vector3df(10,0,0));
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialTexture(1, driver->getTexture("../media/water.jpg"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_REFLECTION_2_LAYER);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
driver->getMeshManipulator()->setVertexColorAlpha(frontCube->getMesh(), 45);
(void)smgr->addCameraSceneNode(0, vector3df(0, 0, -15));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,113,113,133));
smgr->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-transparentReflection2Layer.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
//! Check that EMT_TRANSPARENT_ADD_COLOR works as expected
bool testTransparentAddColor(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice* device = createDevice(driverType, core::dimension2d<u32>(160, 120), 32);
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
if (driver->getColorFormat() != video::ECF_A8R8G8B8)
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
driver->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);
ISceneNode * backCube = smgr->addCubeSceneNode();
backCube->setPosition(vector3df(0, 0, 10));
backCube->setScale(vector3df(5, 5, 1));
backCube->setMaterialTexture(0, driver->getTexture("../media/wall.bmp"));
backCube->setMaterialType(video::EMT_SOLID);
backCube->setMaterialFlag(video::EMF_LIGHTING, false);
IMeshSceneNode * frontCube = smgr->addCubeSceneNode();
frontCube->setMaterialTexture(0, driver->getTexture("../media/help.png"));
frontCube->setMaterialType(video::EMT_TRANSPARENT_ADD_COLOR);
frontCube->setMaterialFlag(video::EMF_LIGHTING, false);
(void)smgr->addCameraSceneNode(0, vector3df(0, 0, -15));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,113,113,133));
smgr->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-transparentAddColor.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
bool testTransparentVertexAlphaMore(E_DRIVER_TYPE driverType)
{
IrrlichtDevice *device = createDevice(driverType, dimension2d<u32>(160, 120));
if (!device)
return true;
IVideoDriver* driver = device->getVideoDriver();
ISceneManager* smgr = device->getSceneManager();
if (driver->getColorFormat() != video::ECF_A8R8G8B8)
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
IAnimatedMesh* mesh = smgr->getMesh("../media/sydney.md2");
IAnimatedMeshSceneNode* node = smgr->addAnimatedMeshSceneNode( mesh );
IMeshSceneNode* cube = smgr->addCubeSceneNode(10.0f,0,-1,vector3df(-5,3,-15));
if (node)
{
node->setMaterialFlag(EMF_LIGHTING, false);
node->setFrameLoop(0, 310);
node->setMaterialTexture( 0, driver->getTexture("../media/sydney.bmp") );
}
if (cube)
{
cube->getMaterial(0).MaterialType = EMT_TRANSPARENT_VERTEX_ALPHA;
cube->setMaterialTexture(0, driver->getTexture("../media/wall.bmp"));
cube->setMaterialFlag(EMF_LIGHTING, false);
smgr->getMeshManipulator()->setVertexColorAlpha(cube->getMesh(),128);
}
// second cube without texture
cube = smgr->addCubeSceneNode(10.0f,0,-1,vector3df(5,3,-15));
if (cube)
{
cube->getMaterial(0).MaterialType = EMT_TRANSPARENT_VERTEX_ALPHA;
cube->setMaterialFlag(EMF_LIGHTING, false);
smgr->getMeshManipulator()->setVertexColorAlpha(cube->getMesh(),128);
}
smgr->addCameraSceneNode(0, vector3df(0,30,-40), vector3df(0,5,0));
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, SColor(0,200,200,200));
smgr->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-transparentVertexAlphaChannelMore.png", 99.18f);
device->closeDevice();
device->run();
device->drop();
return result;
}
bool transparentMaterials(void)
{
bool result = true;
TestWithAllDrivers(testTransparentAlphaChannel);
// FIXME Rogerborg 8-January-2010. Burning's video currently produces unexpected results,
// blending using the full alpha value instead of using a boolean mask. This test is being
// added now anyway to help verify the fix when it's done; it should just require an
// update of the reference image.
TestWithAllDrivers(testTransparentAlphaChannelRef);
// This type seems to be broken as well for Burning's video.
TestWithAllDrivers(testTransparentVertexAlpha);
TestWithAllDrivers(testTransparentAddColor);
// TODO: this simply does not work in OpenGL due to the sphere map
// at least it creates different results, and also varies across drivers
TestWithAllDrivers(testTransparentReflection2Layer);
// This type seems to be broken as well for Burning's video.
TestWithAllDrivers(testTransparentVertexAlphaMore);
return result;
}