Adaptive subdivision modifier causes high memory I'm modeling a bridge and because the scene is going pretty far in the distance  I decided to use the adaptive subdivision function. 

I have an object that has an array modifier that repeat it self 100 times, the object has 32 verts what normally does not give me any problem to render.

Now if I render my scene its taking 15 minutes to even start rendering and blender is working on Building BVH &lt;Object&gt; and when its doing this my memory peaks at 12GB what is absurd for this scene. 

What did I try:


disabling my HDRI and use a simple light setup. 
removing verts up to where I had 4 verts left.
removing the material.


I have the feeling that I'm missing something.

Image of my modifier setup included
It looks like you might be better off not using adaptive subdivision. According to the docs, this property makes muti user objects single user objects, causing increased memory.

This might mean that its separating each iteration of the array (which would make sense as each one needs to be subdivided differently.)

Another solution might be to shorten your array a bit, then manually duplicate the array and lower the subsurf level.

Just out of curiosity, what happens if you move the array below the subsurf? (Other than messing up your seams) Does that help with render times at all?