Test Render my Scene Vray RT 4gb out of memory...

#1

I am doing some tests with Vray RT. However I have something strange happening and would like to ask you guys to test the scene. This is the second scene where this is happening to me.

In 3dsmax I made a car animation indoor scene. There are no materials or textures. Only a basic vray material. The environment hasn’t got many polygons. The car however has 4 million polygons. There are around 20 vray lights in the scenes. The scene is about 150frames. The first like 75 frames are no problem (the camera is far away from the car) after that my gpu’s render like 5 more frames (car is close to the camera) and then vray stops. It said “unable to allocate enough memory”.

I’ve tried it with the Brute Force and with the Light Cache engine. Same problem.

My specs:
i7 3770
2x gtx 980 4gb
ssd 500gb
24gb ram

I am running Gpu-Z next to it and the ram of the gpu is filled for about 60%.
I have no idea why this is occuring. It probarly has to do with the 4million polys car…

My question to you guys. I have a download link to my 3dsmax scene. Are there users with a 4gb gpu who would like to test render this scene? 1920x1080. It’s about 2 min per frame on my 2 gpu’s. After about 10 frames rendering it crashes (when the camera is close to the car).

max scene:
http://we.tl/IwnqcOaLuB

I hope this is something only I am having so it’s not a ram limit. I just invested in 2 gtx 980s 4gbs…

Tis is the vray log:

#2

is it possible that your system ram is maxed out.?

#3

I’ve got 24gb ram and only max running…

#4

and how much ram is in use if the render is crashing.?

are you running win 10.?

#5

I am running windows 7 64. I will check my ram tomorrow.

#6

Did some checks again. Everything works fine when I use cpu as render engine.
I monitored the memory of the gpu again and noticed that the ram is going up every frame.
Why isn’t the memory cleared after each frame?

#7

SOLVED!

I figured out the problem was not with the milion of polygons in the scene but with all the objects that have a Meshsmooth or Turbosmooth modifer on them. When I converted all those models to an editable poly and started rendering again the total memory used by the gpu was max of 1700mb.