Hello there,
I'm currently working on the exercice of CORE Shaders part and I would like some help about the caustics if somebody can give me a feedback on it.
My render doesn't have caustics in the shadows, I did check casting cautics for the pot, receive caustics for the plane and my light is also casting cautics.
My image :
And my pot shader :
I'm not sure what I'm missing here but thank you for your time.
Merven
Hi Mathieu mmerven ,
Try Toggling on of the Shaodw Caustics off and on again (for the Light or the Plane, or the Pot...). If you don't see any difference, you might need to triple-check that the Shadow Caustics are enabled everywhere.
In the Material, you have the Dispersion IOR's mixed up, Red should have the lowest IOR and Blue the highest. Also, the ALpha in the Principled BSDF is 0.8 in your Material and that should be 1, But those things shouldn't affect the Shadow Caustics (much).
Thank you both a lot for your feedback !
I'm gonna look into what you told me Martin and try to make it look better.
And Omar if you find that tutorial you're talking about I will be glad to see it 😄 I'm gonna look for it on my own, and continue to experiment with causticking.
Hi Matthieu mmerven ,
If I'm not mistaken, Omar is referring to this: https://cgcookie.com/lessons/caustics-pool-demo
Whether that can be used here or not, it is definitely a great 'hack', so check it out!