void TerrainMipMapLevel::Draw()
{
//Get the various matrices
D3DXMATRIX matWorld, matView, matProj;
m_screenPtr->D3DDevice->GetTransform( D3DTS_WORLD, &matWorld );
m_screenPtr->D3DDevice->GetTransform( D3DTS_PROJECTION, &matProj );
m_screenPtr->D3DDevice->GetTransform( D3DTS_VIEW, &matView );
//set the combined world/proj/view matrix (for transformations and such)
D3DXMATRIX compoundMatrix;
D3DXMatrixMultiply(&compoundMatrix, &matWorld, &matView);
D3DXMatrixMultiply(&compoundMatrix, &compoundMatrix, &matProj);
m_screenPtr->SetVertexShaderConstant(0, &compoundMatrix);
//set blend factor
D3DXVECTOR4 blendFactor(m_interpolation, 1.0f - m_interpolation, 0.0f, 0.0f);
m_screenPtr->SetVertexShaderConstant(9, &blendFactor, 1);
m_screenPtr->D3DDevice->SetIndices( m_indexBlock->DeviceBuffer()->GetD3DBufferInterface() );
m_screenPtr->D3DDevice->SetStreamSource( 0, m_vertexBuffer.D3DBuffer(), 0, sizeof( TerrainLODVertex ) );
m_screenPtr->D3DDevice->SetStreamSource( 1, m_targetVertexBuffer.D3DBuffer(), 0, sizeof( TerrainLODVertex ) );
m_screenPtr->D3DDevice->DrawIndexedPrimitive( D3DPT_TRIANGLELIST, 0, 0, m_vertexBuffer.VertexCount(), 0, m_indexBlock->IndexCount()/3 );
m_screenPtr->D3DDevice->SetStreamSource( 0, NULL, 0, 0 );
m_screenPtr->D3DDevice->SetStreamSource( 1, NULL, 0, 0 );
m_screenPtr->PolygonsRendered +=m_indexBlock->IndexCount()/3;
m_screenPtr->DrawCalls++;
}
//------------------------------------------------------------------------------
SLDouble AnimationBlendTick::getBlendFactor( SLTimeInterval frameTimeDt ) const {
if (_dtAnim > 0.0) {
if( frameTimeDt <= 0.0 )
{
return 0.0f;
}
else {
SLDouble blendFactor( frameTimeDt / _dtAnim );
return MIN(1.0, blendFactor);
}
}
return 0.0f;
}
