Cath after I showed you how to do shadow catching better and FASTER than the built-in one, using nodes, don't you begin to wonder that I really know the math in the material room? Maybe even it is fair to say that I know the material room math better than anyone else in the world?

Yes I am converting, in real the, the HDR background into the light probe. And it is exactly the same speed as using an angular map from HDRSHOP.

But, by using the U_Offset in the image, you can rotate it!!!! In real time!!! You can even animate it!!!!

Believe me, I know it works. I have very high attention to detail.

I know that the function is identical because:

1. I have verified that, pixel for pixel, my shader network does the same conversion that HDRSHOP does.
2. I have verified that the high dynamic range is honored throughout the calculation.
3. I have test renders showing that there is ZERO difference between using an angular map made by HDRSHOP and my shader using the panoramic image.
4. I have test renders showing that there is ZERO difference beween using the angular maps provided with Poser 7, and using my shader with the panoramic image.

 

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)