Houdini Main Changelogs

Houdini 6.0.36 Use display lists for xray. Fri. August 23, 2002
Houdini 6.0.35 You can no longer name OPs the following key words:

__display_sop__, __render_sop__, __cook_pop__, __audio_chop__

These tokens are reserved to refer to the op which they sound like they refer to. While you could name ops to the above name in the past, it would likely have lead to great problems. Thus, the names are now prohibitted explicitly.

Thu. August 22, 2002
Houdini 17.0.? As the title says: Houdini 5.5 to 6.0 Compatiblity above this line Thu. August 22, 2002
Houdini 6.0.34 Several changes have been made to bones:
  • They now have an Kinematic Solver parameter which provides the local
rotates from an InverseKin chop
  • They now have different geometry when being controlled from an kinematic solver
  • Support for the Skeleton SOP has been removed
  • The regular local rotate parameter is generally ignored if the Kinematic Solver is set. However, the user can key those parms for the InverseKin CHOP to do IK/NoK blending.

The old H3 Kinematic Override option (in the main Options menu) has been reinstated. It allows the overridding of local rotations of all bones. The user can choose from:

  • None: default, does nothing
  • Rest: uses local rotates from the bone's Rest Angle parameter
  • Capture: uses (0,0,0) for the local rotates
Wed. August 21, 2002
Houdini 6.0.34 Fixing a minor problem where the count of the number of failures reported in the sesinetd log would be higher than the number of actual failures. Wed. August 21, 2002
Houdini 6.0.33 The soft transform and soft peak SOPs now show the area of influence in colour. The type of colouration used can be changed with the visualization type. Tue. August 20, 2002
Houdini 6.0.33 Render Operators now have Scripted Subnets in addition to subnets. This allows you to bind the controls for multiple ROPs (such as resolution) to a single control panel. Tue. August 20, 2002
Houdini 6.0.33 We once again allow saving custom panels outside of hip files.

By default new custom panels save to the hip file, while any loaded from the custom path do not. There is a new toggle in the custom panel builder to allow the user to specify where the panel is saved.

Tue. August 20, 2002
Houdini 6.0.33 The Comb SOP has a Keep Normal Length toggle. When set (as is by default) this means combing the surface will maintain the original lengths of the normals rather than normalizing them to unit length. This flag also affects smoothing of normals - if set the normals will not be normalized after smoothing. Tue. August 20, 2002
Houdini 6.0.33 A platform dependent bug in Dissolve SOP was fixed. The bug would cause Dissolve to sometimes output different polygons on different platforms. The solution, however, breaks backwards compatibility of the Dissolve SOP on certain platforms. Tue. August 20, 2002
Houdini 6.0.32 The "Load From" entry in the Desktop Manager works now. Before it was generating empty desktop files (which will result in a single viewer pane). Mon. August 19, 2002
Houdini 6.0.28 There is now a Subnet ROP. This allows you to group ROPs together logically. It also allows you to execute all the ROPs, frame per frame, in the order they are defined by the User Order. Thu. August 15, 2002
Houdini 6.0.28 The mouse wheel on XCFable string fields now affects the numeric portion. Thu. August 15, 2002
Houdini 6.0.28 XCF slider in string fields now affects the numeric portion. Thu. August 15, 2002
Houdini 6.0.27 The transform COP now has an option to apply motion blur to its transformations. The parameters of the blur include shutter time, number of filtered segments and the frame bias (where the timespan of the shutter occurs). Wed. August 14, 2002
Houdini 6.0.27 The Transform and Scale COPs now support collapsable transform operations. If they are chained together, the transform is accumulated at the last node and applied there. Other COPs such as Composite and Layer, which have transforms on inputs, allow those transforms to be collapsed with any immediately previous Scale or Transform COPs (though they are not collapsable themselves). Wed. August 14, 2002
Houdini 6.0.26 Renamed extrude sop parameters and rewrote some help to actually be useful. Tue. August 13, 2002
Houdini 6.0.26 Fixed bug where the vop tile input/output buttons would draw on top of the tool menu when the user moved the mouse. Tue. August 13, 2002
Houdini 6.0.26 At low network LOD, the tile can be CTRL-clicked to connect the tile. The connections currently work from first output to first input. Tue. August 13, 2002
Houdini 6.0.26 The links between operators now have a right-mouse menu with options to disconnect the link, to reconnect either the input or the output, as well as select the input and output. Tue. August 13, 2002
Houdini 6.0.22 Can now use $NPT in the Fixed Points field of the softbody pop. Fri. August 9, 2002
Houdini 6.0.22 Fixed bug in the pop viewer which allowed the reset flag to change yellow when the user changed the cook flag in the current subnet, while on the first frame. Fri. August 9, 2002
Houdini 6.0.22 The default compression mode for TIFF files was changed to deflate compression instead of LZW compression. Thu. August 8, 2002
Houdini 6.0.21 Preliminary support for area light sources has been added to mantra. Mantra currently supports line, grid and disk lights. In the current implementation, the light shader will be called multiple times (based on the sample parameter passed in the light object). Thu. August 8, 2002
Houdini 6.0.21 Preliminary support for area lights has been added to Houdini. The light object now has parameters to control the shape, size and sampling controls for area light sources.

When rendering with MentalRay, the shapes defined are mapped as follows:

Line Light: A cylindrical light defined along the x axis. The length of the cylinder is specified by the area light size. The radius is 0.001 units.

Grid Light: A rectangular grid of the size specified. The grid is defined in the XY plane in the space of the light.

Disk Light: A disc light oriented in the XY plane. The radius is defined by the size specified.

Sphere Light: The radius of the sphere is defined by the area light size.

Cylinder Light: A tube with a length of 1 unit (in the x-axis of the light source) whose radius is defined by the area size parameter.

Note: All light sources may have scales applied to them on top of the area light size parameter.

Thu. August 8, 2002