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Caustics are new in Puppy Ray with Howler 11.1
The Summer Splash update 11.1 for PD Howler has brought a bunch of new features for better renderingof indirect light, Skylight, bump texturesfar away and ground fog as well as other features related to better rendering of water. You may have learned already about the dispersion (scattering) for the look of murky waters. You may have seen the attenuation or absorption due to the depth of the water, causing the color of the ocean floor to loose the red channel, then green and finally blue channel when it goes deep.
You haven't seen it all.
We also have added caustics. The SUn light may hit the water plane from above at some angle. The waves are causing reflections and refractions. They bend the sun's rays into areas that are focused brighter on the ocean floor especially when close to the beach. And it appears as a dancing light show of caustics unless it hits the floor too deep and is absorbed into oblivion.
To learn more about caustics in Puppy Ray GPU, look for details here: the Summer Splash 11.1 update
Here's an animation with a number of renderings, some with mild caustics:
And next time you see a cool image, ask yourself, with a Southern accent: Is it Real, or is it Puppy Rayl ?
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