EmberGen 1.2.5 Changelog

Nicholas Seavert

Posted on October 13, 2025

Released

The feature has been released and is available in public builds.

10

Fixes

• Fixed sixpoint normal pass direction mapping
• Fixed duplicate particle IDs in Alembic exports

1.2.4 Changelog

Nicholas Seavert

Posted on July 2, 2025

Released

The feature has been released and is available in public builds.

10

Fixed some artifacts on some GPUs in six point lighting render passes Fixed straight alpha particle rendering

1.2.3 Changelog

Nicholas Seavert

Posted on May 27, 2025

Released

The feature has been released and is available in public builds.

11

EmberGen 1.2.3

• Removed legacy "Particle max limit" parameter in the simulation node
• Fixed an issue with skybox rendering in "Shapes Scattering" and "Shapes Shadow"
• Added custom nested property/attribute names when exporting Alembic Particles
• Improved stability of alembic exports via semi-unique particle IDs
• Removed the upper cap of particles injections of smoke, flames, temperature and velocity
• Added step-back-once (Shift+Z) to timeline, allowing stepping back only the timeline without affecting simulation, ideal for timeline and imported animation workflows
• Added transform pin to particle export node, fixing coordinate system transforms for specific export options
• Added search to dropdown menus
• Changed reset shortcut to reset export preview playhead
• Enhanced variation export system to check for $(variation) variable in export nodes, disabling variation export with a message if absent
• Fixed an issue where there were undesirable rendering artifacts (lines) due to bad mips
• Fixed an issue where our six point lighting shader mapping for Top, Left Right, was actually incorrect
• Added six point lighting settings back to the render tab so that you can adjust values for each light
• Fixed an issue where the "Six point black background" parameter was affecting the six point normal pass, even though that parameter does not show up when that pass is selected
  • The normal pass now works as if that parameter is off regardless of its actual state
• Fixed an issue where the "Static Blend" blending mode would break looping flipbooks

Alembic Particle Exports Investigation

Nicholas Seavert

Posted on April 28, 2025

Released

The feature has been released and is available in public builds.

31

We're currently looking into general widespread issues with our EmberGen particle exports such as:

• inconsistent id values due to us recycling particles for perf reasons
• no usable age attribute due to inconsistent ID's
• no animated color attribute
• nan positions
• other various problems.

We're also adding the ability set custom attribute names per export channel for particles like we do for VDB exports. For instance, your external DCC may require a velocity attribute called .vel when we export .velocity and as such you will be able to easily rename this.

The risk here is that the inconsistent ID issue may not be fixable due to how we originally coded the particle system and if that's the case then it will only be fixed in EmberGen 2.0 and not a 1.x patch.

Six Point Lighting & Normals Fixes

Nicholas Seavert

Posted on April 22, 2025

Released

The feature has been released and is available in public builds.

59

• Fixes an issue where there were undesirable rendering artifacts (lines) due to bad mips.
• Fixes an issue where our six point lighting shader mapping for Top, Left Right, was actually incorrect.
• Adds six point lighting settings back to the render tab so that you can adjust values for each light.
• Fixes an issue where "Six points black background" parameter was affecting the six points normal pass, even though that parameter does not show up when that pass is selected. We have changed the normal pass to work as if that parameter is off regardless of its actual state.
• Fixes an issue where 6 point normals & lighting would break looping flipbooks.