//----------------------------------------------------------------------------
void ImageExporterApp::CreateScene()
{
m_spScene = SE_NEW SENode;
m_spWireframe = SE_NEW SEWireframeState;
m_spWireframe->Enabled = false;
m_spScene->AttachGlobalState(m_spWireframe);
// 创建用于显示纹理图的矩形.
SEAttributes tempAttr;
tempAttr.SetPositionChannels(3);
tempAttr.SetTCoordChannels(0, 2);
SEVertexBuffer* pVB = SE_NEW SEVertexBuffer(tempAttr, 4);
pVB->Position3(0) = SEVector3f(-1, 1, 0);
pVB->Position3(1) = SEVector3f(1, 1, 0);
pVB->Position3(2) = SEVector3f(1, -1, 0);
pVB->Position3(3) = SEVector3f(-1, -1, 0);
pVB->TCoord2(0, 0) = SEVector2f(0, 0);
pVB->TCoord2(0, 1) = SEVector2f(1, 0);
pVB->TCoord2(0, 2) = SEVector2f(1, 1);
pVB->TCoord2(0, 3) = SEVector2f(0, 1);
SEIndexBuffer* pIB = SE_NEW SEIndexBuffer(6);
int* pIBData = pIB->GetData();
*(pIBData ) = 0;
*(pIBData + 1) = 2;
*(pIBData + 2) = 3;
*(pIBData + 3) = 0;
*(pIBData + 4) = 1;
*(pIBData + 5) = 2;
m_spMesh = SE_NEW SETriMesh(pVB, pIB);
m_spScene->AttachChild(m_spMesh);
m_spScene->UpdateGS();
m_spScene->UpdateRS();
m_Culler.SetCamera(m_spCamera);
m_Culler.ComputeUnculledSet(m_spScene);
}
//----------------------------------------------------------------------------
SENode* SEWidget::CoordinateFrame(float fLengthOfAxis)
{
SE_ASSERT( fLengthOfAxis > 0 );
SENode* pNode = SE_NEW SENode;
SEAttributes tempAttr;
tempAttr.SetPositionChannels(3);
tempAttr.SetColorChannels(0, 3);
SEStandardMesh tempSM(tempAttr);
SEMatrix3f mat3fRot;
float fAxisHeight = 0.667f*fLengthOfAxis;
float fArrowRadius = 0.08f*fLengthOfAxis;
float fArrowHeight = (1.0f - 0.667f)*fLengthOfAxis;
// Create axis x.
SEVertexBuffer* pVBuffer = SE_NEW SEVertexBuffer(tempAttr, 2);
pVBuffer->Position3(0) = SEVector3f::ZERO;
pVBuffer->Position3(1) = fAxisHeight*SEVector3f::UNIT_X;
pVBuffer->Color3(0, 0) = SEColorRGB::SE_RGB_RED;
pVBuffer->Color3(0, 1) = SEColorRGB::SE_RGB_RED;
SEPolyline* pAxisX = SE_NEW SEPolyline(pVBuffer, false, false);
pAxisX->SetName("AxisX");
// Create axis x's ending arrow.
SETriMesh* pArrowX = tempSM.Cone(16, fArrowRadius, fArrowHeight);
for( int i = 0; i < pArrowX->VBuffer->GetVertexCount(); i++ )
{
pArrowX->VBuffer->Color3(0, i) = SEColorRGB::SE_RGB_RED;
}
mat3fRot.FromAxisAngle(SEVector3f::UNIT_Y, SEMathf::HALF_PI);
pArrowX->Local.SetRotate(mat3fRot);
pArrowX->Local.SetTranslate(fAxisHeight*SEVector3f::UNIT_X);
pArrowX->SetName("ArrowX");
// Create axis y.
pVBuffer = SE_NEW SEVertexBuffer(tempAttr, 2);
pVBuffer->Position3(0) = SEVector3f::ZERO;
pVBuffer->Position3(1) = fAxisHeight*SEVector3f::UNIT_Y;
pVBuffer->Color3(0, 0) = SEColorRGB::SE_RGB_GREEN;
pVBuffer->Color3(0, 1) = SEColorRGB::SE_RGB_GREEN;
SEPolyline* pAxisY = SE_NEW SEPolyline(pVBuffer, false, false);
pAxisY->SetName("AxisY");
// Create axis y's ending arrow.
SETriMesh* pArrowY = tempSM.Cone(16, fArrowRadius, fArrowHeight);
for( int i = 0; i < pArrowY->VBuffer->GetVertexCount(); i++ )
{
pArrowY->VBuffer->Color3(0, i) = SEColorRGB::SE_RGB_GREEN;
}
mat3fRot.FromAxisAngle(SEVector3f::UNIT_X, -SEMathf::HALF_PI);
pArrowY->Local.SetRotate(mat3fRot);
pArrowY->Local.SetTranslate(fAxisHeight*SEVector3f::UNIT_Y);
pArrowY->SetName("ArrowY");
// Create axis z.
pVBuffer = SE_NEW SEVertexBuffer(tempAttr, 2);
pVBuffer->Position3(0) = SEVector3f::ZERO;
pVBuffer->Position3(1) = fAxisHeight*SEVector3f::UNIT_Z;
pVBuffer->Color3(0, 0) = SEColorRGB::SE_RGB_BLUE;
pVBuffer->Color3(0, 1) = SEColorRGB::SE_RGB_BLUE;
SEPolyline* pAxisZ = SE_NEW SEPolyline(pVBuffer, false, false);
pAxisZ->SetName("AxisZ");
// Create axis z's ending arrow.
SETriMesh* pArrowZ = tempSM.Cone(16, fArrowRadius, fArrowHeight);
for( int i = 0; i < pArrowZ->VBuffer->GetVertexCount(); i++ )
{
pArrowZ->VBuffer->Color3(0, i) = SEColorRGB::SE_RGB_BLUE;
}
pArrowZ->Local.SetTranslate(fAxisHeight*SEVector3f::UNIT_Z);
pArrowZ->SetName("ArrowZ");
SEVertexColor3Effect* pEffect = SE_NEW SEVertexColor3Effect;
pAxisX->AttachEffect(pEffect);
pArrowX->AttachEffect(pEffect);
pAxisY->AttachEffect(pEffect);
pArrowY->AttachEffect(pEffect);
pAxisZ->AttachEffect(pEffect);
pArrowZ->AttachEffect(pEffect);
pNode->AttachChild(pAxisX);
pNode->AttachChild(pArrowX);
pNode->AttachChild(pAxisY);
pNode->AttachChild(pArrowY);
pNode->AttachChild(pAxisZ);
pNode->AttachChild(pArrowZ);
pNode->UpdateGS();
return pNode;
}
//----------------------------------------------------------------------------
SENode* SEWidget::AABBFrame(const SEVector3f& rMin, const SEVector3f& rMax,
const SEColorRGB& rColor)
{
SENode* pNode = SE_NEW SENode;
SEAttributes tempAttr;
tempAttr.SetPositionChannels(3);
tempAttr.SetColorChannels(0, 3);
SEVector3f vec3fV0(rMin);
SEVector3f vec3fV1(rMin.X, rMin.Y, rMax.Z);
SEVector3f vec3fV2(rMax.X, rMin.Y, rMax.Z);
SEVector3f vec3fV3(rMax.X, rMin.Y, rMin.Z);
SEVector3f vec3fV4(rMax.X, rMax.Y, rMin.Z);
SEVector3f vec3fV5(rMin.X, rMax.Y, rMin.Z);
SEVector3f vec3fV6(rMin.X, rMax.Y, rMax.Z);
SEVector3f vec3fV7(rMax);
// AABBFrame has 12 edges, 24 ending points.
SEVertexBuffer* pVBuffer = SE_NEW SEVertexBuffer(tempAttr, 24);
pVBuffer->Position3(0 ) = vec3fV0;
pVBuffer->Position3(1 ) = vec3fV1;
pVBuffer->Position3(2 ) = vec3fV1;
pVBuffer->Position3(3 ) = vec3fV2;
pVBuffer->Position3(4 ) = vec3fV2;
pVBuffer->Position3(5 ) = vec3fV3;
pVBuffer->Position3(6 ) = vec3fV3;
pVBuffer->Position3(7 ) = vec3fV0;
pVBuffer->Position3(8 ) = vec3fV5;
pVBuffer->Position3(9 ) = vec3fV6;
pVBuffer->Position3(10) = vec3fV6;
pVBuffer->Position3(11) = vec3fV7;
pVBuffer->Position3(12) = vec3fV7;
pVBuffer->Position3(13) = vec3fV4;
pVBuffer->Position3(14) = vec3fV4;
pVBuffer->Position3(15) = vec3fV5;
pVBuffer->Position3(16) = vec3fV0;
pVBuffer->Position3(17) = vec3fV5;
pVBuffer->Position3(18) = vec3fV1;
pVBuffer->Position3(19) = vec3fV6;
pVBuffer->Position3(20) = vec3fV2;
pVBuffer->Position3(21) = vec3fV7;
pVBuffer->Position3(22) = vec3fV3;
pVBuffer->Position3(23) = vec3fV4;
for( int i = 0; i < 24; i++ )
{
pVBuffer->Color3(0, i) = rColor;
}
SEPolyline* pAABBFrame = SE_NEW SEPolyline(pVBuffer, false, false);
pAABBFrame->SetName("AABBFrame");
SEVertexColor3Effect* pEffect = SE_NEW SEVertexColor3Effect;
pAABBFrame->AttachEffect(pEffect);
pNode->AttachChild(pAABBFrame);
pNode->UpdateGS();
return pNode;
}