Votes
1
Product:
iClone 7
Version:
7.21
Status:
Assigned
Issue 3885
Multiple Opacity Mapped Textures & Render Artifacts, Workaround is Adjusting Viewport Size
Notice this first with imported Daz hair that has overlapping Textures with Opacity maps (existed in previous iC7 builds as well.)
The more opacity-mapped textures involved, the heavier the rendered artifacting will be.
ie - if one, no artifacts, if > 3, becomes increasingly noticeable.



EXAMPLE:
Daz OOT Samira Hair - imported from 3DXchange, has 9 separate hair-piece textures, each one has an opacity map:


(A) Veiwport size effect on rendered artifacts (See images beginning with '1080p')

-Viewport Size Normal (Default)
renders at 1080p - some artifacts

-Viewport Size Full Screen (Ctrl-7)
renders at 1080p - more artifacts and missing texture

-Viewport Size Mini (Drag up timeline so viewport is shrunk to less than 1/4 of screen height)
renders at 1080p - minimal artifacts


(B) Rendered Resolution Size effect on rendered artifacts (See images beginning with 'VPNormal')

-Viewport Size Normal
renders at 1080p - some artifacts

-Viewport Size Normal
renders at 2160p UHD - more artifacts and missing texture

-Viewport Size Normal
renders at 600p - minimal artifacts


(C) Super Sampling Amount on rendered artifacts (See images beginning with 'FinalRender')

-Viewport Size Normal @1080p
Final render at 0x SS - some artifacts

-Viewport Size Normal @1080p
Final render at 2x SS - more artifacts and some missing texture

-Viewport Size Normal @1080p
Final render at 3x SS - more artifacts and more missing texture


ADDITIONAL:
*Note 1 - Preview render is also susceptible to the phenomenon and does not avoid issue.
**Note 2 - format of render - JPG, BMP, PNG, TGA - has no effect. All susceptible to the phenomenon.


Thanks for providing the opportunity to improve iClone product and the experience of the iClone user community.
OS: Windows 7
Attachment:
  • 1080pVPNormal.jpg
  • 1080pVPFull.jpg
  • 1080pVPMini.jpg
  • VPNormal_1080p.jpg
  • VPNormal_2160p_UHDp.jpg
  • VPNormal_600p.jpg
  • FinalRender_1080p_0xSS.jpg
  • FinalRender_1080p_2xSS.jpg
  • FinalRender_1080p_3xSS.jpg
  •  6
  •  3342
Bug
Submitted byTonyDPrime
1 2
COMMENTS (6)
TonyDPrime
Update Note 1 - 

Another user stated they were not seeing any pixelation at all upon loading my project.
Thought - Perhaps one of the non-matching factors is leading to different handling in viewport dispaly/render by iClone 7.

-My System-
Win 7 64   (different)
Direct X 11   (different)
Mobo GPU Titan X   (different)
GPU Driver - NVidia 391.01 (same)

-Other party's System-
Win 10 64   (different)
Direct X 12  (different)
Mobo GPU - 1080Ti  (different)
GPU Driver - NVidia 391.01  (same)



Update Note 2 - 
I set the Nvidia Graphics driver mode to 8 Bit color, looked like Safe-Mode....
And it STILL had the flickering square artifacts in viewport, and artifacts in render...Could that be a clue to something..
(See image "BlueHair8Bit", shows on lower left of hair are flickering pixelation artifacts)


Update Note 3 - 
With regard to pixelation artifacts in the viewport, the rate of flicker 'slows down' when another window is open in Windows over iClone Window.  
Then when this other window is closed or minimized, such that iClone is the front window not obscured by any other open window, the flickering rate goes back to fast.


Update Note 4  -
Auxiliary light reduces the geography appearance size of the artifacts in active viewport, but they still show.
Also, no pixelation shows in the mini viewport.
(See image "BlueHairCompare") 

Attachment:
  • BlueHair8Bit.jpg
  • BlueHairCompare.jpg
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