Water Effects Sample Model
This Water Effects Sample Model was provided by Boothy as a sample for new IRender nXt users.
Download the model from the 3D Warehouse
Ripples created with Procedural Bump Maps.
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Procedural Bump Maps
For any material, (not just water), you can apply special Procedural Bump Maps for special effects.
For water these bump maps provide distortion, reflection and highlighting which produce a very realistic water effect.
You can play around with different bump maps, or combinations of bump maps, and also parameters such as scale and strength to fine tune the desired effect.
Marbled Bump Map
For this first image we used the Marbled Bump Map, with a scale of 9.00 and a strength of 0.300:
You can get a broader, (larger ripples), effect by increasing the Scale. Here I increased the Scale to 18.00:
Wrinkled Bump Map
He I switched to a different Bump Map - Wrinkled.
And this time I increased the Strength, rather than the scale:
Multiple Bump Maps
I combined both Wrinkled and Marbled for an even more complex effect:
Lighting Channels
Lighting Channels can be used well with water - especially for underwater lights.
This first scene is mostly illuminated by the Sun and Sky (Lighting Channels are all at default 1.0)
Here I used Lighting Channels, to turn off the sun and sky, and used default values for the ceiling lights and the underwater spot light.
And finally I lowered the ceiling lights and increased the underwater lights for a more stunning effect.
Hybrid Engine
IRender nxt contains 3 different rendering engines - Packet Mode', Path Tracer and the Hybrid Engine.
This is a rendering of the water, with under water lights, create with the Hybrid Engine - 625 passes and 9 hours of renderings time to allow the image to 'cook'.
