younglegend

Hmmm....the grid seems to be still moving down a tiny bit. Can be ignored in my case but i'm still curious why. One workaround i'm doing is using dot product and use the values in the shader to displace.

Hello ppl. I'm trying to figure out an issue with my simple ripple solver setup. The grid over which i'm triggering ripples, seem to moving down the Y direction slowly throughout the simulation. What am i missing? Attached the scene. Thanks! Ripples.hipnc

Can you proivde the error message? I have provided installation instruction at the bottom of the linked page.

Hey guys! Sharing a simple tool to reveal hidden/deprecated houdini nodes, incase you need them or just miss them. It's free, hope you find it useful. cheers! Use with caution, some nodes might make your scene unstable! https://gitlab.com/kishenpj/unhide_nodes

In that case, the only choice i have is to make my widget in python panel. Well that's a bummer. Thanks Alex!

I'm dragging the text from the QWidget (QTreeView) to a wrangle node. Right now when i drop the text on to a wrangle, it copies only the first line and the rest shows up when i delete those lines.

bump

As the title suggests, how do you drag and drop Qt data on to a parameter? I was able to use this example as reference. But in my case the i couldn't make the drop event register. The code i have now kinda works, but the dropped text is wierd. What's the right way to do this....could use some help! I'm attaching an example code. from PySide2.QtWidgets import * from PySide2.QtCore import * from PySide2.QtGui import * import hou class TreeWidget(QTreeView): def __init__(self): super(TreeWidget, self).__init__() self.setDragEnabled(True) # def dragEnterEvent(self, event): # print "dragEnterEvent" # event.acceptProposedAction() def mouseMoveEvent(self, event): print "MoveEvent" mimeData = QMimeData() data = (self.selectedIndexes()[0]).data() mimeData.setText(data) drag = QDrag(self) drag.setMimeData(mimeData) drag.exec_(Qt.CopyAction | Qt.MoveAction, Qt.CopyAction) # def dropEvent(self, event): # print "dropEvent" # mime_data = event.mimeData() class Example(QWidget): def __init__(self): super(Example, self).__init__() self.build_ui() def build_ui(self): self.setGeometry(300, 300, 150, 250) self.setParent(hou.qt.mainWindow(), Qt.Window) mainlayout = QVBoxLayout() self.setLayout(mainlayout) self.tree_widget = TreeWidget() self.tree_widget.setRootIsDecorated(False) self.tree_widget.setHeaderHidden(True) model = QStandardItemModel() self.tree_widget.setModel(model) mainlayout.addWidget(self.tree_widget) for i in range(10): parent_item = QStandardItem('Example_{0} \nnew_line_{0} \n '.format(i)) model.appendRow(parent_item) def dragEnterEvent(self, event): event.acceptProposedAction() # def dropEvent(self, event): # print "dropEvent 2" # str = event.mimeData().text() # event.acceptProposedAction() ex = Example() ex.show()

That's perfect. Thanks Tomas

oh you're right, it does. Had to restart houdini for some reason. ok so hou.hscript("opunhide Sop") gives me all the hidden sop nodes but since it's returns a string, how do you make it a list so that i can loop for each node and say hou.hscript("opunhide Sop <node_name>") sop_list = [] for i in hou.hscript("opunhide Sop"): sop_list.append(str(i)) for sop in _sop_list: node _name = (sop.split(" ")[-1]) print node_name This won't work as i realized t's returning a string, not list of nodes

How do you opunhide all nodes in a particular category or a bunch of specific nodes using python? I wish to add this in my startup script. a simple hou.hscriptExpression("opunhide Sop point") dosent seem to work. Nor does hou.hscript(). What am i doing wrong?

you can set color or MainWindow right after you create it. self.setStyleSheet("QMainWindow {background: 'green';}") Not sure how to change the color of background dynamically, but you can use another widget and connect it's signal to update the color. Cheers!

While on this topic, how do i do an event callback for the new instance? I can do it for the current scene using hou.hipFile.addEventCallback(self.some_hip_event) But been trying to add one before it loads another new instance.

Awesome. Thank you!

How do you load a new instance of houdini from current scene's shelf tool? hou.hipFile.load(path) loads to current scene.