3.1.x

3.1.16

Released: 12/06/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.12, Renderman 22.5, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 4.0 SP2b

  • refactored Feather and Braid attribute handling to avoid Maya 2019 API bug.
  • fixed brush flickering when Grooming.

3.1.15

Released: 03/06/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.12, Renderman 22.5, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 4.0 SP2b

  • updated to Clarisse 4.0 SP2b (as it’s VFX reference platform CY2018 it ships with our Maya 2019 build).
  • updated to PRMan 22.5 and Renderman For Maya 22.5.

3.1.14

Released: 31/05/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.12, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • updatd to VRay Next Update 1 (4.12).
  • fixed Face Varying OSD boundary rules to ensure they’re linearly interpolated.
  • fixed a crash when pgYetiGraph command was used with no graph editor open.
  • fixed a stability issue caused by parallel texture requests.

3.1.13

Released: 24/04/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • updated Attribute node to accept and create attributes on Mesh objects.
  • updated/fixed instance (ginstance) support for Arnold 5.x.

3.1.12

Released: 12/04/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • the Displacement node now correctly updates the output acceleration structures when Meshes have been modified.
  • the Displacement node will recompute mesh normals when displaced, with a parameter to toggle this behaviour on and off.
  • Decreasing strand lengths while painting will now maintain the correct strand segment lengths where increasing the length will create new segments using the Grooms segment length attribute value.
  • fixed a crash caused by Convert to Maya Objects being used when a non Yeti node is selected.
  • fixed an issue introduced into Sculpting with mirror on.

3.1.11

Released: 05/04/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • Displacement node can now be applied to Mesh objects.
  • ensured Graph evaluation occurs when node connections change.
  • fixed a bug in the Instance node which could affect the id order of input instance objects.

3.1.10

Released: 26/03/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • added missing pgYetiGroomUpdatePaintValue command.
  • refactored Groom strand drawing to improve update responsiveness, optimize buffer allocation and avoid an intermittent crash.
  • fixed Save Current Strand Shape which was broken in recent releases.

3.1.9

Released: 18/03/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • made sure strand visibility was correctly handled with new hover strands implementation.
  • resolved a Feather parameter interpolation issue which would cause inf/nan values in output geometry.

3.1.8

Released: 12/03/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • updated VRay plugin to export feather_uvw correctly.
  • made sure input guide sets weren’t causing Yeti to draw an interactive license when caches were being used with Override Inputs on.
  • ensured cache preview is ignored when Obey Inputs is on.
  • fixed Groom display feedback to correctly draw strands being hovered over.

3.1.7

Released: 15/02/19

Dependencies: MtoA 3.1.2.1, Arnold 5.2.2.1, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • attribute paint value control is now a float slider vs. color picker.
  • fixed a bug which caused non evaluated nodes to crash Maya when displayed as a heat map in the graph editor.
  • initial build for Maya 2019, only support for Arnold/MtoA as the other rendering engines don’t have Maya 2019 builds yet.

3.1.6

Released: 23/01/19

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • fixed a bug introduced into the Attribute node that would cause Yeti to crash.

3.1.5

Released: 18/01/19

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • corrected By Length sampling in Guide node to improve shape matching.
  • Attribute node can now sample Vector attributes from Groom/Guides.
  • fixed a regression issue that caused bald areas in 3.1.4.

3.1.4

Released: 14/01/19

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • ensured generated Braids have correct motion data, when missing a few nodes would crash on evaluation.
  • fixed Braid fibre id generation, this fixes a bug where some nodes only affecting the percentage of fibres wouldn’t correctly evaluate.
  • fixed a bug that was causing Yeti to crash when Scattering points onto instanced Mesh objects.
  • fixed a bug in cubic interpolation of strand systems that could cause noise when evaluating the end of a curve.
  • fixed attribute reformatting for Arnold that was causing incorrectly sampled user attributes.
  • Yeti will now only use a render license when “Overriding Cache With Inputs” is used on a cache in an interactive Maya session.
  • added userFloat and userVector attributes to Guide curves as an added utility to pass per guide custom values into the graph.

3.1.3

Released: 18/12/18

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.3, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • updated to Renderman 22.3.
  • fixed an issue where flood fill wasn’t working with some of the Brush tools.
  • fixed a bug which caused Arnold to crash when rendering deformed instances.

3.1.2

Released: 23/11/18

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.2, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • refactored how attribute reformatting was handled post graph evaluation as the previous implementation was introducing issues with instanced fibres.

3.1.1

Released: 17/11/18

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.2, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • resolved an interpolation issue when exporting additional Arnold user attributes.
  • updated reference node to postpone geometry transformation until full graph evaluation has completed.

3.1.0

Released: 16/11/18

Dependencies: MtoA 3.1.0.0, Arnold 5.2.0.0, VRay 4.04, Renderman 22.2, 3Delight 12.0.113, Redshift 2.6.27, Clarisse 3.6 SP4

  • updated to VRay Next (4.x).
  • updated to Renderman 22.2.
  • updated to Redshift 2.6.27.
  • Redshift support for user attributes. Float and Vector as Constant, Uniform and Vertex will be exported - be aware that Redshift currently only supports a single value per strand, even for Vertex attributes.
  • added a brush falloff UI control in the Groom Tool window for more precise control over falloff along the length of a strand.
  • Scatter will now generate du and dv vectors when generating points from a mesh to help with vector displacement. These are NOT inherited by default by the Grow node but can do so if added to the Inherit Attributes parameter.
  • added a check for Redshift API version parity and will warn the users if it doesn’t match.
  • each new Scatter node is now created with a unique random seed.
  • added customMotionStartAndEnd parameter to Arnold DSO to specify exact motion_start and motion_end parameters for generated geometry. This expects an array of two floats (or more, but only the first two values will be used).
  • Int parameters can be toggled to expression inputs.
  • Scatter Seed parameter can now take an expression to create varying distributions on a per frame basis.
  • Node Inspector parameter widgets will now default to expression input fields when expressions are being used.
  • added a Min Clipping Level to Attribute Paint viewport display and renamed Clipping Level to Max Clipping Level.
  • fixed Graph Editor High DPI rendering issues.
  • removed redundant PTC command line tools.
  • brush sizes will be maintained between Comb and Scult style tools.
  • licensing tools updated to RLM v12.4.
  • fixed an issue with nan’s being introduced into custom attributes for Arnold.
  • fixed a bug where Yeti was trying to evaluating parameters that have been removed since previous releases.