void Camera::Update(void)
{
UpdateWindowData(GAME->WindowWidth,GAME->WindowHeight);
Matrix::CreatePerspective(Math::PiOver4,((float)(windowx)) / windowy, 1.0f, 40000.f, &PerspectiveMat);
UpdateOrient();
UpdatePosition();
}
void CrtNode::Update( CrtFloat time)
{
// skip this node if it is controlled by physics engine.
if (UpdateLocalMatrix == CrtFalse && UpdateLocalToWorldMatrix == CrtFalse)
return;
// Update orientation matrices for this node
UpdateOrient( time);
// Update all the child nodes
CrtNode * kids = Children;
while( kids )
{
kids->Update( time );
kids = kids->GetNext();
}
/*#if 0
// !!!GAC EXPERIMENTAL code to find the closest light to a node containing geometry
// Doing it this way the light positions will be one frame behind all the other objects.
// Avoiding this requires an extra scene-graph traversal
// Only do this if there is geometry in this node
if(Geometry)
{
float nearistLightInstanceDistance = FLT_MAX;
NearistInstanceLight = 0;
CrtScene *theScene = _CrtRender.GetScene();
for(CrtInt i=0; i < theScene->NumLightInstances; i++)
{
CrtInstanceLight *instanceLight = theScene->GetLightInstances()[i];
float *lightMatrix = (float *)instanceLight->Parent->GetLocalToWorldMatrix();
float a = LocalToWorldMatrix[12] - lightMatrix[12];
float b = LocalToWorldMatrix[13] - lightMatrix[13];
float c = LocalToWorldMatrix[14] - lightMatrix[14];
a = (a*a) + (b*b) + (c*c);
if(a < nearistLightInstanceDistance)
{
NearistInstanceLight = instanceLight;
}
}
}
#endif
*/
// Create matrices that are later used by shaders, these updates should probably eventually be made lazy
// NOTE: Because CrtMatrix3x4Invert doesn't copy over the last row to the output matrix, we have to do it.
InverseLocalToWorldMatrix[M30] = InverseLocalToWorldMatrix[M31] = InverseLocalToWorldMatrix[M32] = 0.0;
InverseLocalToWorldMatrix[M33] = 1.0;
CrtMatrix3x4Invert( LocalToWorldMatrix, InverseLocalToWorldMatrix);
CrtMatrixTranspose( InverseLocalToWorldMatrix, InverseTransposeLocalToWorldMatrix );
}
