TCameraObject.cpp

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#include "ToshiPCH.h"
#include "TCameraObject.h"
 
//-----------------------------------------------------------------------------
// Enables memory debugging.
// Note: Should be the last include!
//-----------------------------------------------------------------------------
#include "Core/TMemoryDebugOn.h"
 
TOSHI_NAMESPACE_START
 
// $Barnyard: FUNCTION 006cd030
TCameraObject::TCameraObject()
{
    m_Unk1     = 0;
    m_eMode    = TRenderContext::CameraMode_Perspective;
    m_fNear    = 1.0f;
    m_fFar     = 100.0f;
    m_fFOV     = TMath::DegToRad( 90.0f );
    m_fCentreX = 0.5f;
    m_fCentreY = 0.5f;
    m_bEnabled = TTRUE;
}
 
TCameraObject::~TCameraObject()
{
}
 
// $Barnyard: FUNCTION 006cd0d0
void TCameraObject::Render()
{
    if ( m_bEnabled )
    {
        auto pRender        = TRenderInterface::GetSingleton();
        auto pRenderContext = pRender->GetCurrentContext();
 
        TRenderContext::PROJECTIONPARAMS projParams = pRenderContext->GetProjectionParams();
        projParams.m_Centre                         = { m_fCentreX * pRenderContext->GetWidth(), m_fCentreY * pRenderContext->GetHeight() };
 
        auto render = TRenderInterface::GetSingleton();
 
        if ( m_Unk1 == 0 )
        {
            projParams.m_Proj.x = ( pRenderContext->GetWidth() * 0.5f ) / tan( m_fFOV * 0.5f );
            projParams.m_Proj.y = projParams.m_Proj.x;
 
            if ( m_eMode == TRenderContext::CameraMode_Perspective )
            {
                projParams.m_Proj.y *= render->GetPixelAspectRatio();
            }
        }
        else
        {
            projParams.m_Proj.y = ( pRenderContext->GetHeight() * 0.5f ) / tan( m_fFOV * 0.5f );
            projParams.m_Proj.x = projParams.m_Proj.y;
 
            if ( m_eMode == TRenderContext::CameraMode_Perspective )
            {
                projParams.m_Proj.x /= render->GetPixelAspectRatio();
            }
        }
 
        projParams.m_fNearClip = m_fNear;
        projParams.m_fFarClip  = m_fFar;
 
        pRenderContext->SetProjectionParams( projParams );
 
        if ( m_eMode == TRenderContext::CameraMode_Perspective || m_eMode == TRenderContext::CameraMode_Orthographic )
            pRenderContext->SetCameraMode( m_eMode );
 
        TMatrix44 matrix;
        m_TransformObject.GetLocalMatrixImp( matrix );
        matrix.InvertOrthogonal();
 
        pRenderContext->SetWorldViewMatrix( matrix );
        pRenderContext->SetModelViewMatrix( matrix );
        pRenderContext->Update();
    }
}
 
TOSHI_NAMESPACE_END