void FNiagaraCompiler_VectorVM::TransformVector_Internal(TArray<TNiagaraExprPtr>& InputExpressions, TArray<TNiagaraExprPtr>& OutputExpressions)
{
TNiagaraExprPtr MatrixExpr = InputExpressions[0];
check(MatrixExpr->SourceExpressions.Num() == 4);
TNiagaraExprPtr Row0 = MatrixExpr->GetSourceExpression(0);
TNiagaraExprPtr Row1 = MatrixExpr->GetSourceExpression(1);
TNiagaraExprPtr Row2 = MatrixExpr->GetSourceExpression(2);
TNiagaraExprPtr Row3 = MatrixExpr->GetSourceExpression(3);
TNiagaraExprPtr VectorExpr = InputExpressions[1];
TArray<TNiagaraExprPtr> Temp;
Temp.Add(Expression_VMNative(VectorVM::EOp::splatx, VectorExpr));
Temp.Add(Expression_VMNative(VectorVM::EOp::splaty, VectorExpr));
Temp.Add(Expression_VMNative(VectorVM::EOp::splatz, VectorExpr));
Temp.Add(Expression_VMNative(VectorVM::EOp::splatw, VectorExpr));
Temp[0] = Expression_VMNative(VectorVM::EOp::mul, MatrixExpr->GetSourceExpression(0), Temp[0]);
Temp[1] = Expression_VMNative(VectorVM::EOp::mul, MatrixExpr->GetSourceExpression(1), Temp[1]);
Temp[2] = Expression_VMNative(VectorVM::EOp::mul, MatrixExpr->GetSourceExpression(2), Temp[2]);
Temp[3] = Expression_VMNative(VectorVM::EOp::mul, MatrixExpr->GetSourceExpression(3), Temp[3]);
Temp[0] = Expression_VMNative(VectorVM::EOp::add, Temp[0], Temp[1]);
Temp[1] = Expression_VMNative(VectorVM::EOp::add, Temp[2], Temp[3]);
OutputExpressions.Add(Expression_VMNative(VectorVM::EOp::add, Temp[0], Temp[1]));
}
void FNiagaraCompiler_VectorVM::Transpose_Internal(TArray<TNiagaraExprPtr>& InputExpressions, TArray<TNiagaraExprPtr>& OutputExpressions)
{
TNiagaraExprPtr MatrixExpr = InputExpressions[0];
check(MatrixExpr->SourceExpressions.Num() == 4);
TNiagaraExprPtr Row0 = MatrixExpr->GetSourceExpression(0);
TNiagaraExprPtr Row1 = MatrixExpr->GetSourceExpression(1);
TNiagaraExprPtr Row2 = MatrixExpr->GetSourceExpression(2);
TNiagaraExprPtr Row3 = MatrixExpr->GetSourceExpression(3);
//TODO: can probably make this faster if I provide direct shuffle ops in the VM rather than using the flexible, catch-all op compose.
//Maybe don't want to make that externally usable though? Maybe for power users...
TArray<TNiagaraExprPtr> Columns;
Columns.Add(Expression_VMNative(VectorVM::EOp::composex, Row0, Row1, Row2, Row3));
Columns.Add(Expression_VMNative(VectorVM::EOp::composey, Row0, Row1, Row2, Row3));
Columns.Add(Expression_VMNative(VectorVM::EOp::composez, Row0, Row1, Row2, Row3));
Columns.Add(Expression_VMNative(VectorVM::EOp::composew, Row0, Row1, Row2, Row3));
Matrix_Internal(Columns, OutputExpressions);
}