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C++ Matrix4x4::Identity方法代码示例

本文整理汇总了C++中Matrix4x4::Identity方法的典型用法代码示例。如果您正苦于以下问题：C++ Matrix4x4::Identity方法的具体用法？C++ Matrix4x4::Identity怎么用？C++ Matrix4x4::Identity使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Matrix4x4的用法示例。


在下文中一共展示了Matrix4x4::Identity方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: cos

void Matrix4x4::ArbAxisRotation(Vertex &rotVert, int degrees)
{
	float radians = degrees * (float(PI)/180);
	

	rotVert.Normalize();

	float xy = rotVert._x * rotVert._y;
	float xz = rotVert._x * rotVert._z;
	float yz = rotVert._y * rotVert._z;
	float xSq = rotVert._x * rotVert._x;
	float ySq = rotVert._y * rotVert._y;
	float zSq = rotVert._z * rotVert._z;
	float oneMincos = (1-cos(radians));

	Matrix4x4 matRotate;
	matRotate.Identity();

	matRotate._11 =  xSq * oneMincos + cos(radians);
	matRotate._12 =  xy * oneMincos + rotVert._z * sin(radians);
	matRotate._13 =	 xz * oneMincos - rotVert._y * sin(radians);
	matRotate._21 =  xy * oneMincos - rotVert._z * sin(radians);
	matRotate._22 =  ySq * oneMincos + cos(radians);
	matRotate._23 =  yz * oneMincos + rotVert._x * sin(radians);
	matRotate._31 =  xz * oneMincos + rotVert._y * sin(radians);
	matRotate._32 =  yz * oneMincos - rotVert._x * sin(radians);
	matRotate._33 =  zSq * oneMincos + cos(radians);

	Transformation(matRotate);
}
开发者ID:NickBMarine，项目名称:NicksPix，代码行数:30，代码来源:Matrix4x4.cpp

示例2: InitResourceDX9

bool InitResourceDX9(void)
{
	g_orient_matrix.Identity();

	LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();

	if ( !ReInitResourceDX9() )
		return false;

	g_pPostEffect = GutLoadFXShaderDX9("../../shaders/Posteffect.fx");
	if ( NULL==g_pPostEffect )
		return false;

	g_pWaterEffect = GutLoadFXShaderDX9("../../shaders/Watereffect.fx");
	if ( NULL==g_pWaterEffect )
		return false;

	g_pWaterTexture = GutLoadTexture_DX9("../../textures/lena.tga");
	if ( NULL==g_pWaterTexture )
		return false;

	g_Model_DX9.ConvertToDX9Model(&g_Model);

	return true;
}
开发者ID:chenbk85，项目名称:3dlearn，代码行数:25，代码来源:render_dx9.cpp

示例3: View

Matrix4x4 View( Vector3 viewerPosition, Vector3 viewerDirection, Vector3 upVector )
{
	Matrix4x4 result;

	Vector3 zAxis( viewerDirection - viewerPosition );
	zAxis.Normalise();
	Vector3 xAxis( CrossProduct( upVector, zAxis ) );
	xAxis.Normalise();
	Vector3 yAxis( CrossProduct( zAxis, xAxis ) );

	result.Identity();
	result.m[0][0] = xAxis.x;
	result.m[1][0] = yAxis.x;
	result.m[2][0] = zAxis.x;
	result.m[0][1] = xAxis.y;
	result.m[1][1] = yAxis.y;
	result.m[2][1] = zAxis.y;
	result.m[0][2] = xAxis.z;
	result.m[1][2] = yAxis.z;
	result.m[2][2] = zAxis.z;
	result.m[0][3] = -DotProduct( xAxis, viewerPosition );
	result.m[1][3] = -DotProduct( yAxis, viewerPosition );
	result.m[2][3] = -DotProduct( zAxis, viewerPosition );
	result.m[3][3] = 1;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:27，代码来源:maths.cpp

示例4: AddImpulse

static void AddImpulse(void)
{
	static Vector4 vPosition(0.0f, 0.0f, 0.0f, 0.0f);
	//Vector4 vDiff = vPosition - g_vPosition;
	Vector4 vDiff = g_vPosition - vPosition;
	Vector4 vLength = vDiff.Length();

	if ( vLength[0]<2.0f )
		return;

	Vector4 vDir = vDiff / vLength;
	Vector4 vVec0(vDir[1],-vDir[0], 0.0f, 0.0f);
	Vector4 vVec1(vDir[0], vDir[1], 0.0f, 0.0f);

	vPosition = g_vPosition;

	Vector4 vVec0_old = g_orient_matrix[0];
	Vector4 vVec1_old = g_orient_matrix[1];

	Vector4 vVec0_new = VectorLerp(vVec0_old, vVec0, 0.2f);
	Vector4 vVec1_new = VectorLerp(vVec1_old, vVec1, 0.2f);
	vVec0_new.Normalize();
	vVec1_new.Normalize();
	Vector4 vVec2_new = Vector3CrossProduct(vVec0_new, vVec1_new);

	g_orient_matrix.Identity();
	g_orient_matrix[0] = vVec0_new;
	g_orient_matrix[1] = vVec1_new;
	g_orient_matrix[2] = vVec2_new;

	LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();

	device->SetRenderTarget(0, g_pSurfaces[TEX_HEIGHT1]);
	device->SetDepthStencilSurface(NULL);

	Matrix4x4 view_matrix = g_Control.GetViewMatrix();
	
	Matrix4x4 world_matrix; 
	world_matrix.Scale_Replace(g_fRippleSize, g_fRippleSize, 1.0f);
	world_matrix[3] = g_vPosition;

	Matrix4x4 wvp_matrix = g_orient_matrix * world_matrix * view_matrix * g_proj_matrix;

	D3DXHANDLE shader = g_pWaterEffect->GetTechniqueByName("AddImpulse");
	D3DXHANDLE wvp_matrix_var = g_pWaterEffect->GetParameterByName(NULL, "wvp_matrix");
	D3DXHANDLE force_var = g_pWaterEffect->GetParameterByName(NULL, "fForce");

	g_pWaterEffect->SetTechnique(shader);
	g_pWaterEffect->SetMatrix(wvp_matrix_var, (D3DXMATRIX *)&wvp_matrix);
	g_pWaterEffect->SetFloat(force_var, 0.05f);

	g_pWaterEffect->Begin(NULL, 0);
	g_pWaterEffect->BeginPass(0);
		g_Model_DX9.Render(0);
	g_pWaterEffect->EndPass();
	g_pWaterEffect->End();

	vPosition = g_vPosition;
}
开发者ID:chenbk85，项目名称:3dlearn，代码行数:59，代码来源:render_dx9.cpp

示例5: Position

Matrix4x4 Position( float x, float y, float z )
{
	Matrix4x4 result;

	result.Identity();
	result.m[0][3] = x;
	result.m[1][3] = y;
	result.m[2][3] = z;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:11，代码来源:maths.cpp

示例6: Roll

Matrix4x4 Roll( float roll )
{
	Matrix4x4 result;

	result.Identity();
	result.m[0][0] = result.m[1][1] = cosf( roll );
	result.m[1][0] = -sinf( roll );
	result.m[0][1] = sinf( roll );
	result.m[2][2] = result.m[3][3] = 1;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:12，代码来源:maths.cpp

示例7: Yaw

Matrix4x4 Yaw( float yaw )
{
	Matrix4x4 result;

	result.Identity();
	result.m[0][0] = result.m[2][2] = cosf( yaw );
	result.m[2][0] = -sinf( yaw );
	result.m[0][2] = sinf( yaw );
	result.m[1][1] = result.m[3][3] = 1;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:12，代码来源:maths.cpp

示例8: Pitch

Matrix4x4 Pitch( float pitch )
{
	Matrix4x4 result;

	result.Identity();
	result.m[1][1] = result.m[2][2] = cosf( pitch );
	result.m[1][2] = -sinf( pitch );
	result.m[2][1] = sinf( pitch );
	result.m[0][0] = result.m[3][3] = 1;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:12，代码来源:maths.cpp

示例9: RenderAttachments

void ModelViewerRender::RenderAttachments()
{
	for(uint32 i=0;i<m_pModelMF1->m_Header.m_iNumAttc;++i)
	{
		Matrix4x4 matrix;
		uint32 nBoneCount=m_pModelMF1->m_iNumBones;
		uint32 boneID=m_pModelMF1->m_pAttachTags[i].m_iAttachBoneID;
		if(m_pDynamicModel!=NULL)
		{
			if(boneID>=nBoneCount) continue;
			float* pBuffer=m_pDynamicModel->getBonesMatrix();
			Matrix4x4 boneMatrix;
			boneMatrix.Identity();
			boneMatrix._11=pBuffer[12*boneID];
			boneMatrix._21=pBuffer[12*boneID+1];
			boneMatrix._31=pBuffer[12*boneID+2];
			boneMatrix._41=pBuffer[12*boneID+3];
			boneMatrix._12=pBuffer[12*boneID+4];
			boneMatrix._22=pBuffer[12*boneID+5];
			boneMatrix._32=pBuffer[12*boneID+6];
			boneMatrix._42=pBuffer[12*boneID+7];
			boneMatrix._13=pBuffer[12*boneID+8];
			boneMatrix._23=pBuffer[12*boneID+9];
			boneMatrix._33=pBuffer[12*boneID+10];
			boneMatrix._43=pBuffer[12*boneID+11];
			matrix=m_pModelMF1->m_pAttachTags[i].m_InitMatTag*boneMatrix*m_pDynamicModel->getModelMatrix();
		}
		if(m_pStaticModel!=NULL)
		{
			matrix=m_pModelMF1->m_pAttachTags[i].m_InitMatTag*m_pStaticModel->getModelMatrix();
		}
		if(m_pStaticModel!=NULL||m_pDynamicModel!=NULL)
		{
			AABBox aabox=m_pModelMF1->m_MeshAABBox;
			float length=(aabox.vcMax-aabox.vcMin).GetLength();
			length/=100.0f;
			AABBox box;
			box.vcCenter.x=matrix._41;
			box.vcCenter.y=matrix._42;
			box.vcCenter.z=matrix._43;
			box.vcMin.x=box.vcCenter.x-length;
			box.vcMin.y=box.vcCenter.y-length;
			box.vcMin.z=box.vcCenter.z-length;
			box.vcMax.x=box.vcCenter.x+length;
			box.vcMax.y=box.vcCenter.y+length;
			box.vcMax.z=box.vcCenter.z+length;
			m_pRenderDevice->GetVertexCacheManager()->RenderBox(box,Colour(0,255,0));
		//	m_pRenderDevice->GetVertexCacheManager()->RenderDetailSphere(Vector3D(matrix._41,matrix._42,matrix._43),length/100.0f,5,5,Colour(255,255,0));
		}
	}
}
开发者ID:phoenixzz，项目名称:SGPEngine，代码行数:51，代码来源:ModelViewerRender.cpp

示例10: RenderFrameDX9

// 使用DirectX 9來繪圖
void RenderFrameDX9(void)
{
	LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
	// 開始下繪圖指令
	device->BeginScene(); 
	// 設定資料格式
	device->SetFVF(D3DFVF_XYZ|D3DFVF_TEX1); 
	//device->Clear(0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER, 0x0, 1.0f, 0);

	{
		Matrix4x4 IdentityMatrix; 
		IdentityMatrix.Identity();

		device->SetTransform(D3DTS_PROJECTION, (D3DMATRIX *) &IdentityMatrix);
		device->SetTransform(D3DTS_VIEW, (D3DMATRIX *) &IdentityMatrix);
		device->SetTransform(D3DTS_WORLD, (D3DMATRIX *) &IdentityMatrix);
		device->SetTexture(0, g_pTexture0);
		// ZBuffer測試條件設為永遠成立
		device->SetRenderState(D3DRS_ZFUNC, D3DCMP_ALWAYS);
		// 畫出矩形, 同時會清除ZBuffer
		device->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, g_FullScreenQuad, sizeof(Vertex_VT));
		// ZBuffer測試條件設為小於
		device->SetRenderState(D3DRS_ZFUNC, D3DCMP_LESS);
	}

	{
		device->SetTransform(D3DTS_PROJECTION, (D3DMATRIX *) &g_projection_matrix);
		// 鏡頭座標系轉換矩陣
		Matrix4x4 view_matrix = GutMatrixLookAtRH(g_eye, g_lookat, g_up);
		device->SetTransform(D3DTS_VIEW, (D3DMATRIX *) &view_matrix);
		device->SetTransform(D3DTS_WORLD, (D3DMATRIX *) &g_world_matrix);
		device->SetTexture(0, g_pTexture1);
		// 開啟混色功能
		device->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
		// source_blend_factor = 1
		device->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_ONE);
		// dest_blend_factor = 1
		device->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_ONE);
		// 混色公式 = source_color * 1 + dest_color * 1
		// 畫出矩形
		device->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, g_Quad, sizeof(Vertex_VT));
		// 關閉Alpha Test功能
		device->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE);
	}

	// 宣告所有的繪圖指令都下完了
	device->EndScene(); 
	// 把背景backbuffer的畫面呈現出來
	device->Present( NULL, NULL, NULL, NULL );
}
开发者ID:chenbk85，项目名称:3dlearn，代码行数:51，代码来源:render_dx9.cpp

示例11: Perspective

Matrix4x4 Perspective( float fov, float aspectRatio, float fNear, float fFar )
{
	Matrix4x4 result;
	
	float yScale = ( 1 / tan( fov / 2 ) );		// cot( fov / 2 )
	float xScale = yScale / aspectRatio;
	
	result.Identity();
	result.m[0][0] = xScale;
	result.m[1][1] = yScale;
	result.m[2][2] = fFar / ( fFar - fNear );
	result.m[2][3] = ( -fNear * fFar) / ( fFar - fNear );
	result.m[3][2] = 1;
	result.m[3][3] = 0;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:17，代码来源:maths.cpp

示例12: RenderParticleEmitter

void ModelViewerRender::RenderParticleEmitter()
{
	for(uint32 i=0;i<m_pModelMF1->m_Header.m_iNumParticles;++i)
	{
		Matrix4x4 matrix;
		uint32 nBoneCount=m_pModelMF1->m_iNumBones;
		uint32 boneID=m_pModelMF1->m_pParticleEmitter[i].m_iAttachBoneID;
	//	if(boneID>=nBoneCount) continue;
		if(m_pDynamicModel!=NULL)
		{
			float* pBuffer=m_pDynamicModel->getBonesMatrix();
			Matrix4x4 boneMatrix;
			boneMatrix.Identity();
			boneMatrix._11=pBuffer[12*boneID];
			boneMatrix._21=pBuffer[12*boneID+1];
			boneMatrix._31=pBuffer[12*boneID+2];
			boneMatrix._41=pBuffer[12*boneID+3];
			boneMatrix._12=pBuffer[12*boneID+4];
			boneMatrix._22=pBuffer[12*boneID+5];
			boneMatrix._32=pBuffer[12*boneID+6];
			boneMatrix._42=pBuffer[12*boneID+7];
			boneMatrix._13=pBuffer[12*boneID+8];
			boneMatrix._23=pBuffer[12*boneID+9];
			boneMatrix._33=pBuffer[12*boneID+10];
			boneMatrix._43=pBuffer[12*boneID+11];
			matrix=m_pModelMF1->m_pParticleEmitter[i].m_AbsoluteMatrix*boneMatrix*m_pDynamicModel->getModelMatrix();
		}
		if(m_pStaticModel!=NULL)
		{
			matrix=m_pModelMF1->m_pParticleEmitter[i].m_AbsoluteMatrix*m_pStaticModel->getModelMatrix();
		}
		if(m_pStaticModel!=NULL||m_pDynamicModel!=NULL)
		{
			AABBox aabox=m_pModelMF1->m_MeshAABBox;
			float length=(aabox.vcMax-aabox.vcMin).GetLength();
			length*=0.02f;

			if((int)(i+1)==ModelViewerConfig::GetInstance()->m_nCurrSelParticle)
				m_pRenderDevice->GetVertexCacheManager()->RenderCone(matrix,length,-length,4,Colour(255,0,0));
			else
				m_pRenderDevice->GetVertexCacheManager()->RenderCone(matrix,length,-length,4,Colour(255,255,255));
		}
	}
}
开发者ID:phoenixzz，项目名称:SGPEngine，代码行数:44，代码来源:ModelViewerRender.cpp

示例13: 

Matrix4x4 Matrix4x4::ConstructCameraView(const Vector& vecPosition, const Vector& vecDirection, const Vector& vecUp)
{
	Matrix4x4 m;
	
	m.Identity();

	TAssertNoMsg(fabs(vecDirection.LengthSqr()-1) < 0.0001f);

	Vector vecCamSide = vecDirection.Cross(vecUp).Normalized();
	Vector vecCamUp = vecCamSide.Cross(vecDirection);

	m.SetForwardVector(Vector(vecCamSide.x, vecCamUp.x, -vecDirection.x));
	m.SetLeftVector(Vector(vecCamSide.y, vecCamUp.y, -vecDirection.y));
	m.SetUpVector(Vector(vecCamSide.z, vecCamUp.z, -vecDirection.z));

	m.AddTranslation(-vecPosition);

	return m;
}
开发者ID:BSVino，项目名称:Digitanks，代码行数:19，代码来源:matrix.cpp

示例14: 

Matrix4x4 Matrix4x4::ProjectOrthographic(float flLeft, float flRight, float flBottom, float flTop, float flNear, float flFar)
{
	Matrix4x4 m;
	
	m.Identity();

	float flXD = flRight - flLeft;
	float flYD = flTop - flBottom;
	float flZD = flFar - flNear;

	m.m[0][0] = 2.0f / flXD;
	m.m[1][1] = 2.0f / flYD;
	m.m[2][2] = -2.0f / flZD;

	m.m[3][0] = -(flRight + flLeft) / flXD;
	m.m[3][1] = -(flTop + flBottom) / flYD;
	m.m[3][2] = -(flFar + flNear) / flZD;

	return m;
}
开发者ID:duaneking，项目名称:MathForGameDevelopers，代码行数:20，代码来源:matrix.cpp

示例15: 

Matrix4x4 ConvertToMatrix4x4( Quaternion &a )
{
	Matrix4x4 result;

	result.Identity();
	result.m[0][0] = 1 - 2 * a.y * a.y - 2 * a.z * a.z;
	result.m[1][0] = 2 * a.x * a.y + 2 * a.z * a.w;
	result.m[2][0] = 2 * a.x * a.z - 2 * a.y * a.w;
	//result.m[3][0] = 0;
	result.m[0][1] = 2 * a.x * a.y - 2 * a.z * a.w;
	result.m[1][1] = 1 - 2 * a.x * a.x - 2 * a.z * a.z;
	result.m[2][1] = 2 * a.y * a.z + 2 * a.x * a.w;
	//result.m[3][1] = 0;
	result.m[0][2] = 2 * a.x * a.z + 2 * a.y * a.w;
	result.m[1][2] = 2 * a.y * a.z - 2 * a.x * a.w;
	result.m[2][2] = 1 - 2 * a.x * a.x - 2 * a.y * a.y;
	//result.m[3][2] = 0;
	//result.m[0][3] = 0;
	//result.m[1][3] = 0;
	//result.m[2][3] = 0;
	//result.m[3][3] = 0;

	return result;
}
开发者ID:FOBBEH，项目名称:Rendering-Demo，代码行数:24，代码来源:maths.cpp


注：本文中的Matrix4x4::Identity方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。