Refactored the vignette post-processing stage to split its computation to threads.
Main changes:
Added 5 new test scenes (sandbox/tests/test scenes/vignette/).
Added thread_count as a parameter of PostProcessingStage's execute().
Created a new EffectJob which implements IJob.
Created a new renderer/modeling/postprocessingeffect/ folder, to narrow the actual algorithm implementation for post-processing effects into instances of IEffectApplier (the stage's execute() now simply spawns jobs to execute its apply()).
Refactored the vignette post-processing stage to split its computation to threads.
Main changes:
sandbox/tests/test scenes/vignette/).thread_countas a parameter ofPostProcessingStage'sexecute().EffectJobwhich implementsIJob.renderer/modeling/postprocessingeffect/folder, to narrow the actual algorithm implementation for post-processing effects into instances ofIEffectApplier(the stage'sexecute()now simply spawns jobs to execute itsapply()).