Forum: Vue


Subject: Vue 6 vs. Vue 7 render time (need help) : )

Angelsinger opened this issue on Dec 26, 2008 · 18 posts


LCBoliou posted Sat, 27 December 2008 at 10:15 AM

I've been dealing with the render time comparisons, and find that Vue6I is faster, with the same quality settings on most complex outdoor scenes (using scenes created in Vue6 -- spectral 1 atmosphere -- can't compare apples to oranges).

Hardware:

  1. Mac Pro 2.8 Ghz 8-core Xeon, 14 GB RAM (Vista Business 64-bit)
  2. 3.0 GHz PC with 4 GB RAM, (Vista Home Premium 32 bit)
  3. 2.4 GHz PC with 4 GB RAM (Visa Home Premium 32 bit).

I only used the Mac Pro for these comparisons, as Hypervue / Rendercow usage could skew results.

On one scene, I used the same render settings under "User Settings," with anti-aliasing set to "Systematic," to eliminate any adaptive anti-aliasing criteria differences between the 2 programs. The differences in render speed are dramatic -- in the wrong direction!
Vue6I= 8'36"
Vue7I= 13'51"
I zoomed into different areas of the rendered graphic, and the visual quality (the human eye is still the final "tool" in these cases), and the quality seemed the same. I'm still doing some comparisons, but at this point I would conclude that the new Vue render engine still needs some tweaking before it is mature.  Hopefully Eon is doing that as I write this.
I also discovered problems with Hyperview / Rendercow settings. If using an 8-core PC (this would likely include Intel i7 CPU based PCs) as a render node, Rendercows will only see 4 of the 8 cores, IF you use the "Force tile size to" option. So, if you have an 8 core PC (Mac in my case) or a new Intel i7 CPU based PC, don't force tile sizes when rendering via Rendercows.
If you are planing on purchasing one of the new Intel 7i CPU based PCs, please upgrade the OS to at least Vista Business 64-bit, as Vista Home premium 64-bit will not see 8 cores. I'm not sure how businesses like Dell are going to deal with this -- everyone uses at least Vista Business to use the i7 8 cores? The i7 is a quad-core, with (advanced) Hyperthreading on each core; still = 8 cores. Unless MS and Intel have worked out a method to allow hyperthreaded cores not to count as a CPU in Vista Home Premium, some folks are going to be disappointed.