～プログラミング～ DirectX 11でフォン反射モデルのソースコードです。
CD3DTest.h
#define SAFE_RELEASE(p) { if( NULL != p ) { p->Release(); p = NULL; } }
class CD3DTest {
public:
ID3D11Device* m_pDevice;
ID3D11DeviceContext* m_pImmediateContext;
IDXGISwapChain* m_pSwapChain;
ID3D11Texture2D* m_pDepthStencilTexture;
ID3D11RenderTargetView* m_pRenderTargetView;
ID3D11DepthStencilView* m_pDepthStencilView;
ID3D11Buffer* m_pVertexBuffer;
ID3D11Buffer* m_pIndexBuffer;
ID3D11Buffer* m_pMatrixBuffer;
ID3D11Buffer* m_pLightBuffer;
ID3D11InputLayout* m_pInputLayout;
ID3D11VertexShader* m_pVertexShader;
ID3D11PixelShader* m_pPixelShader;
D3D11_VIEWPORT m_Viewport;
int m_VertexCount;
int m_IndexCount;
float m_Angle;
public:
CD3DTest();
virtual ~CD3DTest();
virtual HRESULT Create( HWND hwnd );
virtual void Release();
virtual void Render();
};
CD3DTest.cpp
#include "stdafx.h"
struct Vertex {
float pos[ 3 ];
float nor[ 3 ];
};
D3D11_INPUT_ELEMENT_DESC g_VertexDesc[] {
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
struct ConstantMatrixBuffer {
XMFLOAT4X4 world;
XMFLOAT4X4 view;
XMFLOAT4X4 projection;
};
struct ConstantLight {
XMFLOAT4 pos; //座標(x,y,z)
XMFLOAT4 diffuse; //拡散(r,g,b)
XMFLOAT4 specular; //反射(r,g,b)
XMFLOAT4 attenuate; //減衰(a,b,c)
};
struct ConstantMaterial {
XMFLOAT4 ambient; //環境(r,g,b)
XMFLOAT4 diffuse; //拡散(r,g,b)
XMFLOAT4 specular; //反射(r,g,b,光沢度係数)
};
struct ConstantLightBuffer {
XMFLOAT4 eyePos; //視点座標
XMFLOAT4 ambient; //環境光(r,g,b)
ConstantLight pntLight; //点光源
ConstantMaterial material; //物体の質感
};
int SEGMENT = 36;
CD3DTest::CD3DTest()
{
m_pDevice = NULL;
m_pImmediateContext = NULL;
m_pSwapChain = NULL;
m_pDepthStencilTexture = NULL;
m_pRenderTargetView = NULL;
m_pDepthStencilView = NULL;
m_pVertexBuffer = NULL;
m_pIndexBuffer = NULL;
m_pMatrixBuffer = NULL;
m_pLightBuffer = NULL;
m_pInputLayout = NULL;
m_pVertexShader = NULL;
m_pPixelShader = NULL;
m_VertexCount = 0;
m_IndexCount = 0;
}
CD3DTest::~CD3DTest()
{
Release();
}
HRESULT CD3DTest::Create( HWND hwnd )
{
Release();
HRESULT hr;
CRect rect;
DXGI_SWAP_CHAIN_DESC scDesc;
::GetClientRect( hwnd, &rect );
::ZeroMemory( &scDesc, sizeof( scDesc ) );
scDesc.BufferCount = 1;
scDesc.BufferDesc.Width = rect.Width();
scDesc.BufferDesc.Height = rect.Height();
scDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
scDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
scDesc.OutputWindow = hwnd;
scDesc.SampleDesc.Count = 1;
scDesc.SampleDesc.Quality = 0;
scDesc.Windowed = TRUE;
UINT flags = 0;
#ifdef _DEBUG
flags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
D3D_FEATURE_LEVEL pLevels[] = { D3D_FEATURE_LEVEL_11_0 };
D3D_FEATURE_LEVEL level;
hr = D3D11CreateDeviceAndSwapChain( NULL,
D3D_DRIVER_TYPE_HARDWARE,
NULL,
flags,
pLevels,
1,
D3D11_SDK_VERSION,
&scDesc,
&m_pSwapChain,
&m_pDevice,
&level,
&m_pImmediateContext );
if ( FAILED( hr ) )
return hr;
ID3D11Texture2D* pBackBuffer;
hr = m_pSwapChain->GetBuffer( 0, __uuidof( ID3D11Texture2D ), (LPVOID*)&pBackBuffer );
if ( FAILED( hr ) )
return hr;
hr = m_pDevice->CreateRenderTargetView( pBackBuffer, NULL, &m_pRenderTargetView );
pBackBuffer->Release();
if ( FAILED( hr ) )
return hr;
//深度ステンシルバッファ作成
D3D11_TEXTURE2D_DESC txDesc;
ZeroMemory( &txDesc, sizeof( txDesc ) );
txDesc.Width = rect.Width();
txDesc.Height = rect.Height();
txDesc.MipLevels = 1;
txDesc.ArraySize = 1;
txDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
txDesc.SampleDesc.Count = 1;
txDesc.SampleDesc.Quality = 0;
txDesc.Usage = D3D11_USAGE_DEFAULT;
txDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
txDesc.CPUAccessFlags = 0;
txDesc.MiscFlags = 0;
hr = m_pDevice->CreateTexture2D( &txDesc, NULL, &m_pDepthStencilTexture );
if ( FAILED( hr ) )
return hr;
D3D11_DEPTH_STENCIL_VIEW_DESC dsDesc;
ZeroMemory( &dsDesc, sizeof( dsDesc ) );
dsDesc.Format = txDesc.Format;
dsDesc.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
dsDesc.Texture2D.MipSlice = 0;
hr = m_pDevice->CreateDepthStencilView( m_pDepthStencilTexture, &dsDesc, &m_pDepthStencilView );
if ( FAILED( hr ) )
return hr;
//頂点バッファ作成
int vcount = ( SEGMENT + 1 ) * ( SEGMENT / 2 + 1 );
Vertex* pVList = new Vertex[ vcount ];
for ( int i = 0; i <= ( SEGMENT / 2 ); ++ i ) {
float irad = XM_PI * 2.0f / (float)SEGMENT * (float)i;
float y = (float)cos( irad );
float r = (float)sin( irad );
for ( int j = 0; j <= SEGMENT; ++ j ) {
float jrad = XM_PI * 2.0f / (float)SEGMENT * (float)j;
float x = r * (float)cos( jrad );
float z = r * (float)sin( jrad );
int inx = i * ( SEGMENT + 1 ) + j;
pVList[ inx ].pos[ 0 ] = x;
pVList[ inx ].pos[ 1 ] = y;
pVList[ inx ].pos[ 2 ] = z;
pVList[ inx ].nor[ 0 ] = x;
pVList[ inx ].nor[ 1 ] = y;
pVList[ inx ].nor[ 2 ] = z;
}
}
D3D11_BUFFER_DESC vbDesc;
vbDesc.ByteWidth = sizeof( Vertex ) * vcount;
vbDesc.Usage = D3D11_USAGE_DEFAULT;
vbDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vbDesc.CPUAccessFlags = 0;
vbDesc.MiscFlags = 0;
vbDesc.StructureByteStride = 0;
D3D11_SUBRESOURCE_DATA vrData;
vrData.pSysMem = pVList;
vrData.SysMemPitch = 0;
vrData.SysMemSlicePitch = 0;
hr = m_pDevice->CreateBuffer( &vbDesc, &vrData, &m_pVertexBuffer );
if ( FAILED( hr ) ) {
delete[] pVList;
return hr;
}
delete[] pVList;
//インデックスバッファ作成
int icount = SEGMENT * 3 + SEGMENT * ( SEGMENT / 2 - 1 ) * 6 + SEGMENT * 3;
WORD* pIList = new WORD[ icount ];
icount = 0;
int i = 0;
for ( int j = 0; j < SEGMENT; ++ j ) {
pIList[ icount ] = i * ( SEGMENT + 1 ) + j;
pIList[ icount + 1 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j + 1;
pIList[ icount + 2 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j;
icount += 3;
}
for ( i = 1; i < SEGMENT / 2; ++ i ) {
for ( int j = 0; j < SEGMENT; ++ j ) {
pIList[ icount ] = i * ( SEGMENT + 1 ) + j;
pIList[ icount + 1 ] = i * ( SEGMENT + 1 ) + j + 1;
pIList[ icount + 2 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j;
icount += 3;
pIList[ icount ] = i * ( SEGMENT + 1 ) + j + 1;
pIList[ icount + 1 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j + 1;
pIList[ icount + 2 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j;
icount += 3;
}
}
i = SEGMENT / 2;
for ( int j = 0; j < SEGMENT; ++ j ) {
pIList[ icount ] = i * ( SEGMENT + 1 ) + j;
pIList[ icount + 1 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j + 1;
pIList[ icount + 2 ] = ( i + 1 ) * ( SEGMENT + 1 ) + j;
icount += 3;
}
D3D11_BUFFER_DESC ibDesc;
ibDesc.ByteWidth = sizeof( WORD ) * icount;
ibDesc.Usage = D3D11_USAGE_DEFAULT;
ibDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
ibDesc.CPUAccessFlags = 0;
ibDesc.MiscFlags = 0;
ibDesc.StructureByteStride = 0;
D3D11_SUBRESOURCE_DATA irData;
irData.pSysMem = pIList;
irData.SysMemPitch = 0;
irData.SysMemSlicePitch = 0;
hr = m_pDevice->CreateBuffer( &ibDesc, &irData, &m_pIndexBuffer );
if ( FAILED( hr ) ) {
delete[] pIList;
return hr;
}
delete[] pIList;
//定数バッファ作成
D3D11_BUFFER_DESC cbDesc;
cbDesc.ByteWidth = sizeof( ConstantMatrixBuffer );
cbDesc.Usage = D3D11_USAGE_DEFAULT;
cbDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
cbDesc.CPUAccessFlags = 0;
cbDesc.MiscFlags = 0;
cbDesc.StructureByteStride = 0;
hr = m_pDevice->CreateBuffer( &cbDesc, NULL, &m_pMatrixBuffer );
if ( FAILED( hr ) )
return hr;
cbDesc.ByteWidth = sizeof( ConstantLightBuffer );
cbDesc.Usage = D3D11_USAGE_DEFAULT;
cbDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
cbDesc.CPUAccessFlags = 0;
cbDesc.MiscFlags = 0;
cbDesc.StructureByteStride = 0;
hr = m_pDevice->CreateBuffer( &cbDesc, NULL, &m_pLightBuffer );
if ( FAILED( hr ) )
return hr;
//頂点レイアウト作成
hr = m_pDevice->CreateInputLayout( g_VertexDesc, ARRAYSIZE( g_VertexDesc ), g_vs_main, sizeof( g_vs_main ), &m_pInputLayout );
if ( FAILED( hr ) )
return hr;
//頂点シェーダー生成
hr = m_pDevice->CreateVertexShader( &g_vs_main, sizeof( g_vs_main ), NULL, &m_pVertexShader );
if ( FAILED( hr ) )
return hr;
//ピクセルシェーダー生成
hr = m_pDevice->CreatePixelShader( &g_ps_main, sizeof( g_ps_main ), NULL, &m_pPixelShader );
if ( FAILED( hr ) )
return hr;
//ビューポート設定
m_Viewport.TopLeftX = 0;
m_Viewport.TopLeftY = 0;
m_Viewport.Width = (FLOAT)rect.Width();
m_Viewport.Height = (FLOAT)rect.Height();
m_Viewport.MinDepth = 0.0f;
m_Viewport.MaxDepth = 1.0f;
m_VertexCount = vcount;
m_IndexCount = icount;
return hr;
}
void CD3DTest::Release()
{
if( m_pImmediateContext ) {
m_pImmediateContext->ClearState();
}
SAFE_RELEASE( m_pVertexBuffer );
SAFE_RELEASE( m_pIndexBuffer );
SAFE_RELEASE( m_pMatrixBuffer );
SAFE_RELEASE( m_pLightBuffer );
SAFE_RELEASE( m_pInputLayout );
SAFE_RELEASE( m_pVertexShader );
SAFE_RELEASE( m_pPixelShader );
SAFE_RELEASE( m_pRenderTargetView );
SAFE_RELEASE( m_pDepthStencilView );
SAFE_RELEASE( m_pDepthStencilTexture );
SAFE_RELEASE( m_pSwapChain );
SAFE_RELEASE( m_pImmediateContext );
SAFE_RELEASE( m_pDevice );
}
void CD3DTest::Render()
{
XMMATRIX worldMatrix = XMMatrixTranslation( 0.0f, 0.0f, 0.0f );
XMVECTOR eye = XMVectorSet( 0.0f, 3.0f, -3.0f, 0.0f );
XMVECTOR focus = XMVectorSet( 0.0f, 0.0f, 0.0f, 0.0f );
XMVECTOR up = XMVectorSet( 0.0f, 1.0f, 0.0f, 0.0f );
XMMATRIX viewMatrix = XMMatrixLookAtLH( eye, focus, up );
float fov = XMConvertToRadians( 45.0f );
float aspect = m_Viewport.Width / m_Viewport.Height;
float nearZ = 0.1f;
float farZ = 100.0f;
XMMATRIX projMatrix = XMMatrixPerspectiveFovLH( fov, aspect, nearZ, farZ );
XMVECTOR lightPosition = XMVectorSet( -2.0f, 2.0f, -1.0f, 0.0f );
XMVECTOR lightDiffuse = XMVectorSet( 1.0f, 1.0f, 1.0f, 0.0f );
XMVECTOR lightSpecular = XMVectorSet( 1.0f, 1.0f, 1.0f, 0.0f );
XMVECTOR lightAttenuate = XMVectorSet( 1.0f, 0.1f, 0.1f, 0.0f );
XMVECTOR lightAmbient = XMVectorSet( 0.2f, 0.2f, 0.2f, 0.0f );
XMVECTOR materialDiffuse = XMVectorSet( 0.6f, 0.8f, 0.4f, 0.0f );
XMVECTOR materialSpecular = XMVectorSet( 0.8f, 0.8f, 0.8f, 20.0f );
XMVECTOR materialAmbient = XMVectorSet( 0.6f, 0.8f, 0.4f, 0.0f );
ConstantMatrixBuffer cmb;
XMStoreFloat4x4( &cmb.world, XMMatrixTranspose( worldMatrix ) );
XMStoreFloat4x4( &cmb.view, XMMatrixTranspose( viewMatrix ) );
XMStoreFloat4x4( &cmb.projection, XMMatrixTranspose( projMatrix ) );
ConstantLightBuffer clb;
XMStoreFloat4( &clb.eyePos, eye );
XMStoreFloat4( &clb.ambient, lightAmbient );
XMStoreFloat4( &clb.pntLight.pos, lightPosition );
XMStoreFloat4( &clb.pntLight.diffuse, lightDiffuse );
XMStoreFloat4( &clb.pntLight.specular, lightSpecular );
XMStoreFloat4( &clb.pntLight.attenuate, lightAttenuate );
XMStoreFloat4( &clb.material.ambient, materialAmbient );
XMStoreFloat4( &clb.material.diffuse, materialDiffuse );
XMStoreFloat4( &clb.material.specular, materialSpecular );
m_pImmediateContext->UpdateSubresource( m_pMatrixBuffer, 0, NULL, &cmb, 0, 0 );
m_pImmediateContext->UpdateSubresource( m_pLightBuffer, 0, NULL, &clb, 0, 0 );
float clearColor[ 4 ] = { 0.0f, 0.0f, 0.0f, 1.0f }; //red,green,blue,alpha
UINT strides = sizeof( Vertex );
UINT offsets = 0;
m_pImmediateContext->IASetInputLayout( m_pInputLayout );
m_pImmediateContext->IASetVertexBuffers( 0, 1, &m_pVertexBuffer, &strides, &offsets );
m_pImmediateContext->IASetIndexBuffer( m_pIndexBuffer, DXGI_FORMAT_R16_UINT, 0 );
m_pImmediateContext->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST );
m_pImmediateContext->VSSetConstantBuffers( 0, 1, &m_pMatrixBuffer );
m_pImmediateContext->VSSetShader( m_pVertexShader, NULL, 0 );
m_pImmediateContext->RSSetViewports( 1, &m_Viewport );
m_pImmediateContext->PSSetConstantBuffers( 0, 1, &m_pLightBuffer );
m_pImmediateContext->PSSetShader( m_pPixelShader, NULL, 0 );
m_pImmediateContext->OMSetRenderTargets( 1, &m_pRenderTargetView, m_pDepthStencilView );
m_pImmediateContext->ClearRenderTargetView( m_pRenderTargetView, clearColor );
m_pImmediateContext->ClearDepthStencilView( m_pDepthStencilView, D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0f, 0 );
m_pImmediateContext->DrawIndexed( m_IndexCount, 0, 0 );
m_pSwapChain->Present( 0, 0 );
}
vs_test.vsh
struct VS_IN
{
float4 pos : POSITION0;
float4 nor : NORMAL0;
};
struct VS_OUT
{
float4 pos : SV_POSITION;
float4 posw : POSITION0;
float4 norw : NORMAL0;
};
cbuffer ConstantBuffer
{
float4x4 world; //ワールド変換行列
float4x4 view; //ビュー変換行列
float4x4 projection; //透視射影変換行列
}
VS_OUT vs_main( VS_IN input )
{
VS_OUT output;
float3 nor;
float col;
output.pos = mul(input.pos, world);
output.pos = mul(output.pos, view);
output.pos = mul(output.pos, projection);
output.posw = mul(input.pos, world);
output.norw = mul(input.nor, world);
return output;
}
ps_test.psh
struct PS_IN {
float4 pos : SV_POSITION;
float4 posw : POSITION0; //ワールド座標系の座標
float4 norw : NORMAL0; //ワールド座標系の法線
};
struct Light {
float4 pos; //座標(x,y,z)
float4 diffuse; //拡散(r,g,b)
float4 specular; //反射(r,g,b)
float4 attenuate; //減衰(a,b,c)
};
struct Material {
float4 ambient; //環境(r,g,b)
float4 diffuse; //拡散(r,g,b)
float4 specular; //反射(r,g,b,光沢度係数)
};
cbuffer ConstantBuffer {
float4 eyePos; //視点座標
float4 ambient; //環境光(r,g,b)
Light pntLight; //点光源
Material material; //物体の質感
};
float4 ps_main( PS_IN input ) : SV_Target
{
float3 n;
float3 v;
float3 l;
float3 r;
float d;
float a;
float3 iA;
float3 iD;
float3 iS;
n = normalize(input.norw.xyz);
v = normalize(eyePos.xyz - input.posw.xyz);
l = pntLight.pos.xyz - input.posw.xyz;
d = length(l); //光源距離
l = normalize(l); //正規化光源ベクトル
r = 2.0 * n * dot(n, l) - l; //正規化反射ベクトル
a = saturate(1.0f / (pntLight.attenuate.x + pntLight.attenuate.y * d + pntLight.attenuate.z * d * d)); //減衰
iA = material.ambient.xyz * ambient.xyz;
iD = saturate(dot(l, n)) * material.diffuse.xyz * pntLight.diffuse.xyz * a;
iS = pow(saturate(dot(r, v)), material.specular.w) * material.specular.xyz * pntLight.specular.xyz * a;
return float4(saturate(iA + iD + iS), 1.0);
}
コメントをお書きください
Akira Mori (木曜日, 07 6月 2018 15:33)
DirectXプログラミングの全くの初心者ですが、本講義にて勉強させて頂いております。本当に感謝申し上げます。
このソースコードの中で、
g_VertexListとg_IndexListが定義されていなとのエラーメッセージが出て
困っております。
どうしたらよいのかよろしくご教示お願い致します。
AraramiStudio (木曜日, 07 6月 2018 18:19)
Akira Moriさん
ご指摘ありがとうございます。
本文中のソースコードに不要な行が含まれていました。申し訳ございません。
CD3DTest.cppの中の以下の２行は削除してください。
186行目： vrData.pSysMem = g_VertexList;
240行目： irData.pSysMem = g_IndexList;
Akira Mori (木曜日, 07 6月 2018 19:24)
AraramiStudio様
早速のご返事深く感謝申し上げます。
ご指示のとおりに訂正致しましたところ、成功致しました。
改めて御礼申し上げます。
全くのコピペで申し訳ありませんが、お蔭様にてDirectX11の素晴らしさを体験しております。
とある専門学生 (金曜日, 27 11月 2020 13:33)
DirectX初学者です。
シェーダー側のposやnorなどがfoat3ではなくfloat4である理由を知りたいです。
AraramiStudio (金曜日, 27 11月 2020 16:56)
とある専門学生さん
コメントありがとうございます。
座標変換を行う場合、変換行列を使います。
3D座標の場合、4×4の変換行列を使う事で回転・拡大縮小・移動の３つを一度に計算できるのでこれを使うのですが、float4x4の変換行列と演算する場合には座標もfloat4にする必要があります。
とある専門学生 (金曜日, 27 11月 2020 20:51)
迅速なご返答ありがとうございます。理解できました。