Blender is running very slow.

[HeavyDutyDerby]

When i use any model that i did not make myself (whethier imported from Source Filmmaker or from a Blend file), and i try to animate with them, i preview the animation (pressing Alt A) and it goes at about 6 to 8 frames per second.

Iv'e already tryed to remove the models but when i got rid of everything and preview the animation, it goes to about 20 to 22 frames per second.

My computer cannot possibly be the problem, beacuse here is what my computer's power is.

GTX 1070 MSI

16 GB DDR4

Intel(R) Core(TM) i5-7500 CPU @ 3,40GHz QuadCore

Windows 10

[Pte Jack]

Check for new video drivers. Nvidia has a habit of blowing up drivers everynow and again. If you have the newest drivers, fall back to a version where you didn't have problems and wait for the next release before updating again.

[HeavyDutyDerby]

Iv'e never updated them, so will now.

[Mika]

Blender use 1 core of CPU in the editor 3D. Like others programs of 3D as 3D Max, Cinema 4D, etc.... Bake the animation can solve the problem but it take some time because use 1 core too. Only rendered view can use all cores of CPU or GPU but view the animation in real time with rendered view can crash blender and is more slower because use 1 core of CPU at same time is rendering the scene.

[gruengruen]

hello there.

Blender beginns to lag when your scene has more then 1-2 m vertics dependign on your pc.
blender is autobaking simullations -> the framerate is alyws below ground in the first round.
for rendering a film. the use more then one pc and they make use of render layers.
and concernign the resoultion of you animation. it can be to high and so it beginns to lag.

the opengl is faster then the blender internal is faster then cycles.
when you are using cycyles reduce samples.
for faster rendering. -> render tab ->render switch device to gpu compute.
reduce resolution
reduce light
reduce use of subsurf
reduce glossy/reflection/refraction
batch rendering is much faster then inGUIrendering
uses renderlayer -> compositing!!

p.s close all apps in teh background during your blender session.

[HeavyDutyDerby]

My problem is not that the "rendering" is slow, its simply when i click Alt A, (to preview the animation) it laggs so badly. No matter what.

[gruengruen]

alt a means that you render x amount of frames into your pc memory.
depending on the vertics ,materials,lights etc of your scene one frame could render literally forever:-)
so start with the gl render and work you way up until performance hits the wall.
first time you do this blender will auto "bake" this to disk.

last thing is very important blender consumes memory and after some time you need to restart your pc.

it is posible that your windows 10 , your gfx carte or the driver is the problem.
if dound that after some time:
https://developer.blender.org/T50650
Windows10 breaks NVidia GPUs drivers after recent update - makes Blender UI very slow

to get rid of this uses linux:)

[HeavyDutyDerby]

...

[HeavyDutyDerby]

I can't use linux...

[gruengruen]

do you use opensub surf for animation?
http://www.blenderhd.com/tutorial/opensubdiv-blender-2-76/

[HeavyDutyDerby]

No.

[gruengruen]

When using a subsuf modifier on your models there is a buildin methode to speed up animation in blender aka "alt a"

In the subsuf modifier menü is a checkbox labeld opensubdiv
When you activate it you must go open the user preference settings.
In the user preference -> the system panel. -> opensubdiv compute ->
cpu & and openmp are cpu based and glsl is for fast gfx cards.

When you alrdy there change the cycles compute device to cuda.
And change the window draw method to triple buffer...

:-) that should help to solve your problem.
or just look at video i posted .

[HeavyDutyDerby]

Okay?

[gruengruen]

too much informations? or not suitable ?

[HeavyDutyDerby]

Its your english...

[gruengruen]

him you are right lol but englisch is not my first langu.
update okay i rearrange some words.)