void RaceScene::Enter()
{
mFollowCamera = mSceneManager->addFpsCameraNode(2, nullptr, XMFLOAT3(0, 100.0f, -100.0f), XMFLOAT3(0, 1.0f, 0.0f), XMFLOAT3(0, 1.0f, 0), true);
mFollowCamera->setNearZ(1.0f);
mFollowCamera->setFarZ(1000.0f);
mFollowCamera->setShadowRange(300.0f);
mSideCamera = mSceneManager->addFpsCameraNode(3, nullptr);
mSideCamera->setNearZ(1.0f);
mSideCamera->setFarZ(1000.0f);
mSideCamera->setShadowRange(300.0f);
mPlayerVehicle = new Vehicle(mSceneManager, mTerrainNode, "carA");
mSceneManager->setActiveCamera(2);
XMFLOAT3 camPos = mFreeCamera->getPosition();
mPlayerVehicle->setPosition(camPos);
mFreeCamera->update(0);
XMFLOAT3 look = mFreeCamera->getLookVector();
XMVECTOR look_v = XMVector3Normalize(XMVectorSet(look.x, 0, look.z, 0));
XMVECTOR neg_x_v = XMVectorSet(-1.0f, 0, 0, 0);
XMVECTOR axis = XMVector3Normalize(XMVector3Cross(neg_x_v, look_v));
XMVECTOR angle = XMVector3AngleBetweenNormals(neg_x_v, look_v);
XMVECTOR quat_v = XMQuaternionRotationAxis(axis, XMVectorGetX(angle));
XMFLOAT4 quat;
XMStoreFloat4(&quat, quat_v);
mPlayerVehicle->setRotation(quat);
mVideoDriver->setDeferredAntiAliasing(true);
IMeshNode* skyNode = mSceneManager->getSkyNode();
if (skyNode)
skyNode->setMaterialName("skydome_material");
u32 textureWidth = mVideoDriver->getBackBufferWidth() / 2;
u32 textureHeight = mVideoDriver->getBackBufferHeight() / 2;
ITextureManager* textureManager = ITextureManager::getInstance();
mTireTrailTexture = textureManager->createTexture2D("tire_trail",
textureWidth,
textureHeight,
ETBT_SHADER_RESOURCE | ETBT_RENDER_TARGET,
nullptr, 1, EGF_R16_FLOAT);
mTireTrailDepthSurface = textureManager->createDepthStencilSurface("tire_trail_depth",
textureWidth,
textureHeight,
16, 0, false, 1, 0, false, false);
}
int main()
{
IDevice* device = gf::createDevice(EDT_DIRECT3D11, 800, 600);
IVideoDriver* driver = device->getVideoDriver();
ISceneManager* smgr = device->createSceneManager();
IResourceGroupManager* resourceGroupManager = driver->getResourceGroupManager();
resourceGroupManager->init("Resources.cfg");
ITimer* timer = device->getTimer();
timer->reset();
ITextureManager* textureManager = ITextureManager::getInstance();
IShaderManager* shaderMgr = driver->getShaderManager();
IShader* shader = shaderMgr->load(EST_COMPUTE_SHADER, "matmul.hlsl", "cs_main");
const u32 dimension = 512;
const u32 sq_dimension = dimension * dimension;
std::vector<f32> A(sq_dimension);
std::vector<f32> B(sq_dimension);
std::vector<f32> C(sq_dimension);
std::vector<f32> D(sq_dimension);
// init data
for (u32 i = 0; i < sq_dimension; i++)
{
A[i] = math::RandomFloat(0, 10.0f);
B[i] = math::RandomFloat(0, 10.0f);
}
f32 start_time, end_time;
start_time = timer->getTime();
// store the right answers to D
for (u32 i = 0; i < dimension; i++)
{
for (u32 j = 0; j < dimension; j++)
{
f32 sum = 0;
for (u32 k = 0; k < dimension; k++)
{
sum += A[i * dimension + k] * B[k * dimension + j];
}
D[i * dimension + j] = sum;
}
}
end_time = timer->getTime();
printf("The computation time by CPU: %fs\n", end_time - start_time);
start_time = timer->getTime();
ITexture* inputTexture1 = textureManager->createTexture2D("input1", dimension, dimension,
ETBT_SHADER_RESOURCE, &A[0], 1, EGF_R32_FLOAT, 0);
ITexture* inputTexture2 = textureManager->createTexture2D("input2", dimension, dimension,
ETBT_SHADER_RESOURCE, &B[0], 1, EGF_R32_FLOAT, 0);
ITexture* outputTexture = textureManager->createTexture2D("output", dimension, dimension,
ETBT_UNORDERED_ACCESS, nullptr, 1, EGF_R32_FLOAT, 0);
ITexture* copyTexture = textureManager->createTexture2D("copy", dimension, dimension,
ETBT_CPU_ACCESS_READ, nullptr, 1, EGF_R32_FLOAT, 0);
shader->setTexture("gInputA", inputTexture1);
shader->setTexture("gInputB", inputTexture2);
shader->setTexture("gOutput", outputTexture);
u32 blockNum = dimension / 8;
if (blockNum * 8 != dimension)
blockNum++;
driver->runComputeShader(shader, blockNum, blockNum, 1);
//driver->resetRWTextures();
//driver->resetTextures();
outputTexture->copyDataToAnotherTexture(copyTexture);
STextureData outputData;
copyTexture->lock(ETLT_READ, &outputData);
u8* data = (u8*)outputData.Data;
for (u32 i = 0; i < dimension; i++)
{
// copy each row.
memcpy(&C[i * dimension], data + outputData.RowPitch * i, dimension * sizeof(f32));
}
copyTexture->unlock();
end_time = timer->getTime();
printf("The computation time by GPU: %fs\n", end_time - start_time);
for (u32 i = 0; i < sq_dimension; i++)
{
assert(math::FloatEqual(C[i], D[i]));
}
// destory textures.
if (!textureManager->destroy(inputTexture1))
printf("Destory texture failed!");
if (!textureManager->destroy(inputTexture2))
printf("Destory texture failed!");
if (!textureManager->destroy(outputTexture))
printf("Destory texture failed!");
if (!textureManager->destroy(copyTexture))
printf("Destory texture failed!");
//sphereMaterial.drop();
smgr->destroy();
device->drop();
system("pause");
return 0;
}
