lukpazera’s gists

lukpazera / getUserValueCompare.cpp

Created June 15, 2020 09:15

This snippet compares two methods of getting user value from MODO SDK. They give the same result but watch out for getting value via the ScriptSys service - it is MUCH slower, especially in MODO 14.1.

	/*
	* The first method is by using user.value command.
	* This seems like indirect way compared to direct API call but it is actually WAY faster.
	* Especially as of MODO 14.1 release.
	* Use this one to get user value!
	*/

	CLxUser_CommandService cmdSrv;
	CLxUser_Command userValCmd;
	int value = 0;

lukpazera / queryComponentMode.cpp

Created March 18, 2020 09:21

Test current component mode using MODO SDK. Posted by Ben Halling on MODO's #coding slack channel.

	LXtID4 currentTypes[4];
	LXtID4 vertex_type = srv_sel.LookupType(LXsSELTYP_VERTEX);
	LXtID4 edge_type = srv_sel.LookupType(LXsSELTYP_EDGE);
	LXtID4 poly_type = srv_sel.LookupType(LXsSELTYP_POLYGON);
	LXtID4 item_type = srv_sel.LookupType(LXsSELTYP_ITEM);
	currentTypes[0] = vertex_type;
	currentTypes[1] = edge_type;
	currentTypes[2] = poly_type;
	currentTypes[3] = item_type;
	LXtID4 cur = srv_sel.CurrentType(currentTypes);

lukpazera / toolHandle.cpp

Created March 18, 2020 09:12

Tool with handle example. Lifted from sample code posted by Mario Baldi on MODO's #coding Slack channel. I have not tested this code, saving for future reference.


	#include <lx_tool.hpp>
	#include <lx_toolui.hpp>
	#include <lx_vmodel.hpp>
	#include <lx_vector.hpp>
	#include <lxu_attributes.hpp>
	#include <lx_plugin.hpp>
	#include <lx_layer.hpp>
	#include <lx_mesh.hpp>
	#include <lx_log.hpp>

lukpazera / toolPixelDraw.cpp

Created March 18, 2020 09:10

Tool implementation - drawing in screen space. Lifted from MODO's #coding channel on Slack.

	/*
	You return LXfTMOD_DRAW_PIXEL from your ToolModel::Flags method.
	Then you'll be called for drawing into screen space.
	If you support multiple drawing modes; 3D and screen space,
	you can test in your Draw callback by calling ILxView::Flags,
	and testing the return type for LXiVIEWv_PIXEL.
	You can query the StrokeDraw object passed to your draw method for an ILxView.
	When you're in your drawing call, you can call ILxView::Dimensions to get the size of the viewport
	to calculate the position to draw.
	*/

lukpazera / mouseProximity.cpp

Last active February 20, 2020 16:40

A WIP sample on how to measure the distance from a given object in viewport to mouse - in pixels.

	// This is not entirely working as it crashes MODO when an item with this drawing
	// is selected and transform tool is enable. So something somewhere has to return bad value at some point
	// and this sample is not handling that.
	// This code needs to be executed from within item's Draw method.
	// Drawing is aborted if mouse pointer is more then 120 pixels from the item to be drawn.
	// The idea is to only draw the item when mouse pointer is close enough to it.
	#include <lx_vp.hpp>

	CLxUser_View view(stroke);

lukpazera / setupChannels.py

Created August 21, 2019 11:44

This is how to read evaluated setup channels using MODO python SDK. The crucial bit is using scene.SetupChannels() in line 11. Stolen from Foundry's coding slack channel.

	scene_svc = lx.service.Scene()
	sel_svc = lx.service.Selection()
	pkt_trans = lx.object.ItemPacketTranslation(sel_svc.Allocate(lx.symbol.sSELTYP_ITEM))
	sel_type = sel_svc.LookupType(lx.symbol.sSELTYP_ITEM)

	for i in xrange(sel_svc.Count(sel_type)):
	pkt = sel_svc.ByIndex(sel_type, i)
	item = pkt_trans.Item(pkt)

	scene = item.Context()

lukpazera / getPolyUnderMouse.py

Last active May 23, 2020 09:30

Gets mesh and and an index of a polygon that is under the mouse in MODO viewport.

	# python

	import lx
	import modo

	# This snippet queries polygon that is under a mouse.

	# Querying polygon only works correctly on active meshes.
	# That means that if mouse is over the mesh that is not active
	# (was not selected prior to entering component mode),

lukpazera / onIdleEvent.cpp

Last active June 20, 2019 11:17

How to set up on idle event in MODO SDK.

	#include "lx_visitor.hpp"

	/*
	* OnIdleVisitor is used to perform On Idle Event.
	* Evaluate() method will be called once the on idle event is registered.
	*
	* If you add more methods to this class and want to access them from outside this is how you need to do it:
	* onIdleVisitorInstance.loc.method();
	* You get direct access to this class contents via '.loc'.
	* Don't ask me why ;).

lukpazera / undoGroup.CFG

Last active June 18, 2019 15:41

This is piece of MODO config allows for defining a command (my.command) as part of undo group (myUndoGroup). 'undoPlusPrevious' means that when undoing my.command it will do one more undo step automatically. It allows for bundling multiple commands into one undo step.

	http://modo.sdk.thefoundry.co.uk/wiki/Command_(lx-command.hpp)#.2814.29_SDK:_Undo_Group_Command_Example

	<atom type="CommandUndoGroup">
	<hash type="Command" key="my.command">myUndoGroup</hash>
	<hash type="GroupBehavior" key="myUndoGroup">undoPlusPrevious</hash>
	</atom>

lukpazera / alignToView.py

Created June 17, 2019 08:31

This snippet can be used to align vector in world space to a current view. This could be used for something like Align To View in MODO locator shape properties. We could potentially draw a shape that is always facing view.

	import lx
	import lxu
	import modo

	scene = modo.Scene()
	i = scene.item('Locator')

	# Get current MODO viewport interface
	vs = lx.service.View3Dport()
	currentViewIndex = vs.Current()

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