void ForwardRenderer::Update( float dt )
{
    //
    m_fLightRotationAngle += 0.1f*dt;

    XMMATRIX R = XMMatrixRotationY( m_fLightRotationAngle );
    for ( int i = 0; i < 3; ++i )
    {
        XMVECTOR lightDir = XMLoadFloat3( &m_OriginalLightDir[i] );
        lightDir = XMVector3TransformNormal( lightDir, R );
        XMStoreFloat3( &m_DirLights[i].Direction, lightDir );
    }

    BuildShadowTransform();
}
Esempio n. 2
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void DuckHuntMain::UpdateScene(float dt)
{
	//
	// Control the camera.
	//
	if (GetAsyncKeyState('W') & 0x8000)
		mCam.Walk(10.0f*dt);

	if (GetAsyncKeyState('S') & 0x8000)
		mCam.Walk(-10.0f*dt);

	if (GetAsyncKeyState('A') & 0x8000)
		mCam.Strafe(-10.0f*dt);

	if (GetAsyncKeyState('D') & 0x8000)
		mCam.Strafe(10.0f*dt);

	//
	// Animate the lights (and hence shadows).
	//

	////
	//// Walk/fly mode
	////
	//if (GetAsyncKeyState('2') & 0x8000)
	//	mWalkCamMode = true;
	//if (GetAsyncKeyState('3') & 0x8000)
	//	mWalkCamMode = false;

	//// 
	//// Clamp camera to terrain surface in walk mode.
	////
		XMFLOAT3 camPos = mCam.GetPosition();
		float y = mTerrain.GetHeight(camPos.x, camPos.z);
		mCam.SetPosition(camPos.x, y + 2.0f, camPos.z);
	

	BuildShadowTransform();

	mCam.UpdateViewMatrix();
	mSystem->update();
}