I am learning rendering water using oblique frustum clipping to gain a Reflection Map.

If the water is static,the result will be OK.

But if the water is dynamic,cracks will happen!

I have been trying to use a little offset when blending the Reflection Map,but the result will not alleviate too much.

Static Case:

[attachment=24927:??01.JPG]

Result OK

Dynamic Case:

[attachment=24928:??02.JPG]

Cracks happen!!!

Dose anyone know how to solve it,Or should use another way to gain the Reflection Map?

Thanks!

Don't cross post. The other thread is here, closing this one.