Kruud VSTi is a synthesizer with a drawable low resolution Oscillator.
1 LFO/SUB OSC
2 Delays of which one can be used to make crude physical modelling.
A multimode filter
The main Osc has 5 basic waveforms , Pink and white Noise and a drawable user waveform.
The waveforms have different modes like Phase Mod, PWM (Square only) and a special morph mode (listed as PWM in the synth) for all but the square wave.
The user waveform can mix or morph between two waveforms.
Check the video for some sound examples.