Nanashi-soft○プログラマ専用○DirectX11開発○

◇DirectX11プログラミング -２つ別々のテクスチャーを貼るには？-

	//テクスチャー読み込み
	D3DX11_IMAGE_LOAD_INFO LoadInfo;
	LoadInfo.Width = 0;
	LoadInfo.Height = 0;
	LoadInfo.Depth = 0;
	LoadInfo.FirstMipLevel = 0;
	LoadInfo.MipLevels = D3DX11_DEFAULT,
	LoadInfo.Usage = D3D11_USAGE_DEFAULT;
	LoadInfo.BindFlags = D3D11_BIND_SHADER_RESOURCE;
	LoadInfo.CpuAccessFlags = 0;
	LoadInfo.MiscFlags = 0;
	LoadInfo.Format = DXGI_FORMAT_R32G32B32_FLOAT;
	LoadInfo.Filter = D3DX11_FILTER_TRIANGLE;
	LoadInfo.MipFilter = D3DX11_FILTER_TRIANGLE;
	LoadInfo.pSrcInfo = NULL;

	ID3D11ShaderResourceView* hpShaderResourceView = NULL;
	if(FAILED(D3DX11CreateShaderResourceViewFromFile(hpDevice, TEXT("ira.siyoko.png"), &LoadInfo, NULL, &hpShaderResourceView, NULL))){
		MessageBoxW(hWnd, L"D3DX11CreateShaderResourceViewFromFile", L"Err", MB_ICONSTOP);
		goto End;
	}
	ID3D11ShaderResourceView* hpShaderResourceViews[] = { hpShaderResourceView };

	//もう１枚読み込み
	ID3D11ShaderResourceView* hpShaderResourceView2 = NULL;
	if(FAILED(D3DX11CreateShaderResourceViewFromFile(hpDevice, TEXT("ira.meri-2hai.png"), &LoadInfo, NULL, &hpShaderResourceView2, NULL))){
		MessageBoxW(hWnd, L"D3DX11CreateShaderResourceViewFromFile", L"Err", MB_ICONSTOP);
		goto End;
	}
	ID3D11ShaderResourceView* hpShaderResourceViews2[] = { hpShaderResourceView2 };

	//メインループ
	MSG hMsg;
	while(true){
		while(PeekMessageW(&hMsg, NULL, 0, 0, PM_REMOVE)){
			if(hMsg.message == WM_QUIT){
				goto End;
			}
			TranslateMessage(&hMsg);
			DispatchMessage(&hMsg);
		}

		//背景クリア
		float ClearColor[] = {0.0f, 0.0f, 1.0f, 1.0f};
		hpDeviceContext->ClearRenderTargetView(hpRenderTargetView, ClearColor);

		//テクスチャー1をコンテキストに設定
		hpDeviceContext->PSSetShaderResources(0, 1, hpShaderResourceViews);

		//ワールド変換用行列を生成
		XMMATRIX hWorld;		//ワールド変換行列
		//初期化
		hWorld = XMMatrixIdentity();

		XMMATRIX hRotate;
		hRotate = XMMatrixTranslation(+0.5f, 0.0f, 0.0f);
		hWorld = XMMatrixMultiply(hWorld, hRotate);

		XMMATRIX hView;		//ビュー変換行列
		XMVECTOR hEye = XMVectorSet(0.0f, 0.0f, -2.0f, 0.0f);	//カメラの位置
		XMVECTOR hAt = XMVectorSet(0.0f, 0.0f, 0.0f, 0.0f);		//焦点の位置
		XMVECTOR hUp = XMVectorSet(0.0f, 1.0f, 0.0f, 0.0f);
		hView = XMMatrixLookAtLH(hEye, hAt, hUp);

		XMMATRIX hProjection;	//透視射影変換行列
		hProjection = XMMatrixPerspectiveFovLH(D3DXToRadian(45.0f), 16.0f/9.0f, 0.0f, 1000.0f);

		//それらをシェーダーに送る
		struct ConstantBuffer
		{
			XMMATRIX mWorld;
			XMMATRIX mView;
			XMMATRIX mProjection;
		};
		//constantバッファ生成
		ID3D11Buffer* hpConstantBuffer = NULL;
		hBufferDesc.ByteWidth = sizeof(ConstantBuffer);
		hBufferDesc.Usage = D3D11_USAGE_DEFAULT;
		hBufferDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
		hBufferDesc.CPUAccessFlags = 0;
		hBufferDesc.MiscFlags = 0;
		hBufferDesc.StructureByteStride = sizeof(float);
		if(FAILED(hpDevice->CreateBuffer(&hBufferDesc, NULL, &hpConstantBuffer))){
			MessageBoxW(hWnd, L"Create ConstantBuffer", L"Err", MB_ICONSTOP);
			goto End;
		}

		//ID3D11DeviceContext*    g_pImmediateContext = NULL;
	    ConstantBuffer hConstantBuffer;
		hConstantBuffer.mWorld = XMMatrixTranspose(hWorld);
		hConstantBuffer.mView = XMMatrixTranspose(hView);
		hConstantBuffer.mProjection = XMMatrixTranspose(hProjection);
		hpDeviceContext->UpdateSubresource(hpConstantBuffer, 0, NULL, &hConstantBuffer, 0, 0);

		hpDeviceContext->VSSetConstantBuffers(0, 1, &hpConstantBuffer);

		//描画
		hpDeviceContext->Draw(TYOUTEN, 0);

		//テクスチャー2をコンテキストに設定
		hpDeviceContext->PSSetShaderResources(0, 1, hpShaderResourceViews2);

		hWorld = XMMatrixIdentity();

		hRotate = XMMatrixRotationZ(D3DXToRadian(-45.0f));
		hWorld = XMMatrixMultiply(hWorld, hRotate);

		hRotate = XMMatrixTranslation(-0.5f, 0.0f, 0.0f);
		hWorld = XMMatrixMultiply(hWorld, hRotate);

		hConstantBuffer.mWorld = XMMatrixTranspose(hWorld);
		hpDeviceContext->UpdateSubresource(hpConstantBuffer, 0, NULL, &hConstantBuffer, 0, 0);
		hpDeviceContext->VSSetConstantBuffers(0, 1, &hpConstantBuffer);

		//描画
		hpDeviceContext->Draw(TYOUTEN, 0);

		hpDXGISwpChain->Present(0, 0);

	}