I created these two classic effects during my Technical Art and VFX Master´s degree in Voxel School, but I decided to take them a little bit further by adding some noises and glitch effects.
Thermal Vision blueprint
Thermal Vision
Night Vision
Thermal Vision - General
Thermal Vision - Resolution Control
Thermal Vision - Pixel Noise and UV Distortion
Thermal Vision - Wave Noise
Thermal Vision - Hot Colours Gradient
Thermal Vision - Cold Colours Gradient
Thermal Vision - Noise Mix
Thermal Vision - Multiplying Colour and Noise Mix
Night Vision - General (same than Thermal Vision, only the Tint part changes)