Linked Questions

2
votes
0answers
36 views

What is BVH and why is it slowing down my render so much? [duplicate]

I'm attempting to render a long character animation in cycles, and before each frame is starting to render, bvh is coming up and making everything super slow.
22
votes
3answers
5k views

What are the technical differences between F12 render and viewport preview?

What are the technical differences between F12 render and viewport preview render, if any? This is all the documentation I could find about Cycles viewport rendering: interactive rendering can be ...
11
votes
3answers
11k views

Why is rendered viewport faster than rendering individual frames?

When I'm using rendered viewport it initially takes a while before rendering starts, but once it does, I can freely move around and rendering a new view happens almost instantaneously. When on the ...
6
votes
2answers
4k views

What is a Point Density texture?

I see Blender 2.76 now has a feature called "Point Density" textures. Is this a particle system? If so, how is it different from previous particle systems?
11
votes
1answer
1k views

The anatomy of a Cycles render?

What processes comprise a Cycles render? I was watching the top of the render view and watching the progress messages: Synchronizing Object | ObjectName Updating Mesh | Computing Normals Updating ...
6
votes
2answers
4k views

How can I change the directory used to cache BVH?

Is there any way to specify where Blender saves the BVH cache files? It seems that it always goes to a folder inside my user profile (in my case, on Win7: ...
4
votes
2answers
1k views

There is a missing part at my object when I render in cycles [closed]

This is my model in the solid view, we can see it is complete. but in the render view or in the final render it is clipped : here is my viewport clipping settings : I have added a cube to the ...
1
vote
2answers
125 views

Why are simple shapes like spheres built using polygons?

I was wondering what is the reason to implement shapes like spheres with triangles instead of a mathematical equation? This could allow perfectly round spheres and not kind of spherical with some ...
1
vote
0answers
157 views

Is Static / Dynamic BVH still present in recent builds of 2.79?

There still is Static / Dynamic BVH dropdown in official 2.79 build: That dropdown to choose between them isn't present in recent builds of 2.79 or 2.8 anymore. Viewport resolution only seems to be ...
0
votes
0answers
46 views

Building BVH Issues/Crashing

My name is Ella, and I'm learning how to use blender. Recently, i've been having issues when trying to render my images. I use the Cycles engine, and when I render it says "Building BVH: 100%&...