Houdini Main Changelogs

Houdini 4.9.386 Just a note about the new "undoctrl" command. This command will speed up the execution of scripts with the caveat that script cannot be undone. WARNING: This can turn off the undo mechanism inside Houdini... Thu. June 7, 2001
Houdini 4.9.385 The 'r', 'e', 't' hotkeys that change the type of any handle derived from a transform handle now also act as toggles. Thus, if the translate jack is visible, 't' will toggle the jack off; pressing 'e' will make the handle reappear as a scale handle; and so on. Wed. June 6, 2001
Houdini 4.9.384 PolyKnit state and SOP can now do meta-edges. A meta edge is the shortest path connecting two points. So a user can select two points that are not adjacent, and the SOP will find the path connecting them and knit appropriately. The state was modified to show the meta edge correctly. Tue. June 5, 2001
Houdini 4.9.384 Deleting the cop node being used for the background image in a viewport will no longer core Houdini. Tue. June 5, 2001
Houdini 4.9.384 The IK End Affector handle now works on bone chains that are controlled by an IK Chop with "Inverse Kinematics" solver type (i.e. true "IK" chains). Tue. June 5, 2001
Houdini 4.9.383 The objpretransform command is no longer generated with the opscript command if the pretransform is not modified from its default identity value. This improves compatibility of the opscript command with Houdini 4.x when the pretransform is not used. Mon. June 4, 2001
Houdini 4.9.383 The Bones state's Shift+LMB interaction has been improved. It no longer overrides your currently selected chain parent. The new behaviour is as follows:
  • Shift+LMB when there is no current selected chain parent from the tip of a bone means that you wish to extend the selected bone chain. The chain parent is then highlighted with a grey, dotted bounding box to indicate that no chain root will be created. When extending a bone chain, you may reselect the new parent at any time by doing a MMB on a new object. The currently drawing bone chain will move to the new parent's position.
  • Shift+LMB when there is an already selected chain parent means to start drawing from the selected object but with the already selected chain parent as the parent object hierarchically. Reselecting the parent with the MMB will not move the currently drawing bone chain in this case. Note that the chain parent is indicated by a blue (as opposed to grey) dotted bounding box.
  • To deselect the chain parent at any time, middle-click in the viewport where nothing is drawn.
Mon. June 4, 2001
Houdini 4.9.383 The Bones state now creates bones that are oriented with the floor in the viewport that the bone was completed. The X axis of the bone is aligned to be parallel with the normal of the floor. If while in the perspective view and the construction plane is off, then the viewing plane is used.

Chain roots are now created aligned with the world axes. KNOWN BUG: This feature breaks IK w/Constraints. This will be fixed before Houdini 5 ships.

Mon. June 4, 2001
Houdini 4.9.380 The buttons to the left of the viewport for turning handles on and off now let you right click on them to see the same popup menu available when right clicking on the handle itself. Fri. June 1, 2001
Houdini 4.9.380 Fixed bug where executing the "chrmkey" command without specifying either the -t or -f option would cause Houdini to crash. Fri. June 1, 2001
Houdini 4.9.378 Fixed some bugs in the handling of twist on FK bones. Added an option to the IK End Affector Handle to specify whether or not the handle should maintain joint locks when the current time changes. Previously this capability was always on. Wed. May 30, 2001
Houdini 4.9.378 Fixed core dumper when a collision pop (without the "Add Hit Diffuse Color Attribute" or the "Add Hit Texture UV Attribute" option toggled on) cooks in a simulation which already has these attributes added by another collision pop.

NOTE: A collision pop will fill out these two attributes if they exist in the simulation, just like it does all such hit attributes. It does not need to have the add option for the attribute toggled on.

Wed. May 30, 2001
Houdini 4.9.378 The new Houdini .pic format images can now be gzipped and read successfully by Houdini apps. When creating PRISMS .pic.Z files, gzip compression will now be used instead of using "compress" which uses a patented compression algorithm. Old .pic.Z files can still be read correctly. Wed. May 30, 2001
Houdini 4.9.378 There is now an environment variable which can be used to set the default color for missing texture maps:

% setenv HOUDINI_TEXTURE_DEFAULT_COLOR "red green blue alpha"

will cause missing texture maps to return the color specified when accessed in VEX.

Wed. May 30, 2001
Houdini 4.9.378 The commands for creating the default scene in 123.cmd has been split into its own file, defaultscene.cmd. The file 123.cmd is loaded whenever Houdini starts up and from within 123.cmd, defaultscene.cmd is sourced. Wed. May 30, 2001
Houdini 4.9.378 Old change that should have been noted back in Houdini 4.9.337:

There is an option to specify the maximum memory usage for the undo

manager under the "Preferences..." menu option. It is set to 1000 Kb by default in Houdini 4.9. In Houdini 4.1, it was fixed at a size of 100 Kb.

Wed. May 30, 2001
Houdini 4.9.377 Miscellaneous fixes to 3d texture code:
  • Fix to shadow integration artifacting
  • Fixes to generation of files
  • Addition of anti-aliasing of maps during generation
  • Addition of forpoints() loop in image3d VEX context
  • isbound() works properly (as best it can) in image3d
  • Default shaders distributed for:

                    a) Fog context (including adaptive step integration)
                    b) Surface context (ditto)
                    c) Image3d context.
  • Access to image3d context shaders via SHOPs is implemented

  • There is an output driver which will generate texture maps by calling i3dgen for the user.
  • etc.
Tue. May 29, 2001
Houdini 4.9.376 The Bones State's joint handle can now be switched to a rotate handle via the 'r' key or the right-click menu of the handle. This gives full control over the orientation of the bone.

Similarly, the default bone object handle has been updated to use the new bone rotate handle.

The orientation of the translate handle in the Bones State no longer loses its orientation when you tumble.

FK end affectors in the Bones State now align themselves to their associated bones when you move the position of a joint via the joint handles.

Mon. May 28, 2001
Houdini 4.9.376 Tolerance sliders in SOPs, such as those for project, cookie, etc, are now logarithmic. This means that if you slide it one unit to the right, the number becomes ten times larger, and if you slide it one unit to the left, the number ten times smaller. This is more in line with the sort of changes one wants to make with tolerance values. Mon. May 28, 2001
Houdini 4.9.376 The Cookie SOP now supports the Crease Option. This allows you to generate the polygons that result from intersecting polygonal geomtry. This can be useful for birthing paritcles, etc. Mon. May 28, 2001
Houdini 4.9.373 You can now type the name of a "Generic" state, like the view state or the posing state, after hitting TAB. Until now, only generators and modifiers were accessible this way. Fri. May 25, 2001
Houdini 4.9.373 Fixed a bug in vmantra that caused some points not to be rendered in "points only" mode. Fri. May 25, 2001
Houdini 4.9.372 Replaced the 'p' hotkey for the display options dialog with 'd'. 'p' is now used for the OP parm dialog within the viewport. It's a minor change, yet bound to frustrate the unsuspecting user. Thu. May 24, 2001
Houdini 4.9.372 All the handles based on the pivot handle have a new menu option to project them onto the construction plane. If the handle is detached from the geometry, only the handle will be translated; otherwise, it will also displace the geometry. Thu. May 24, 2001
Houdini 4.9.372 The manipulator list UI has been improved. Manipulators display an icon which specifies the type of the manipulator. Clicking on the icon pops up a text display of the manipulator type. Each manipulator also has a button displaying the number of OPs attached to that manipulator. Clicking on this display shows the names of the attached ops. Similarly, manipulator groups have a button showing the number of manipulators in the group. Clicking on this button shows the names of the manipulators in the group.

Manipulators and manipulator group names are now allowed to have arbitrary characters in their names (including spaces and punctuation).

Also, persistent manipulators have buttons displayed on the left of the viewport for turning them on and off in each viewer. These buttons look similar to the manipulator buttons specific to a particular state, but are drawn with a blue background.

Thu. May 24, 2001