Forum: DAZ|Studio


Subject: Reality Render thread. A new beginning.

Pret-a-3D opened this issue on May 14, 2012 · 8453 posts


mbin posted Fri, 04 January 2013 at 1:59 AM

Quote - > Quote - Quote - 2 questions.  How would I add a water plane, and have it so im looking up through the water?  I tried, had the camera under the water, the model was half and half, but it just mirrored the bottom part, which was under the water.

 

Can I have it so the camera is half inside the water, and half outside, so that the bottom half of the camera is distorted by water?

 

Mbinz has done what you have described, he is often here but you can also contact him over at DA. This link will take you to one of the images he has created -

http://mbinz.deviantart.com/art/Fish-and-Fresnel-279347475

 

Somewhat like that, but I would also want the top to be scene, but obscured by the water.  So you can see somewhat up above, but somewhat foggy...

Thank you for the link, I will ask them.

There are a couple of things to remember here... Firstly, if you want the surface of the water to be halfway up the camera lens, so that the top half is looking above the water and the lower half is seeing under the water, you will need to move the camera up/down to get the surface to cut the camera lens; more so if you also have ripples on the water surface. The view (in daz 3.1 at least) with the camera view having the surface bisect the lens is not altogether acurate when you get to see the view in the render. You may need to set it so the surface is exactly in the middle and render, then tweak the camera up/down and re-render until you have the view you want.

Secondly, if you have the camera completly under water, and you want to look up through the water to see what is actually above the water surface, then you have to get the angle of the camera correct. If the angle is at a grazing angle, then you will see a reflection in the bottom of the water surface of what is below. (as per the image linked to above). The angle gives the 'fresnel' effect. http://www.3drender.com/glossary/fresneleffect.htm

If you can only see the reflection on the under surface of the water, then you need to change the angle of the camera to be more 'upright' until you get to see through the water surface. You will find that if you have a rippled surface that the image of what's above the water will be 'rippled' due to the varying angle of the water surface due to the ripple.

Again, you may need to change the angle of the camera and re-render until you get what you want... `¬)

 

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