Wild Waters Shader (C4D Octane)

For the price of the cup of coffee it’s Perfect for close-ups, medium and master shots. Includes all the settings to create realistic wild waters (rivers, oceans, lakes etc.). Works best with deformed geometry.

Balance between details (caustics) & render speeds:
To add caustics, set all paralellism as low as possible. You need SMALL light source. Reduce caustic blur (0.01 would be good), set GI clamp to max.    

To speed up render times do the opposite.