Particles Operator • A white rectangle no longer appears in the viewport when viewing a result 2K composite with particles in a viewport in a view mode other than OpenGL. • Combustion can now render greater than 1K workspaces with particles with the following settings: (a) Rendering is set to Software (in the Settings controls of the Composite Controls panel), and (b) Use Software OpenGL is enabled (in the Combustion Preferences dialog, under the General OpenGL options).