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Visibility Above Highest object FAILS

Ethos Erlanger

June 28, 2017 02:50

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The highest object in an experience establishes the highest point from which the camera can view the experience. This is a boundary and it seems to hold true for the lowest object in the same way. When the viewer falls below the lowest object nothing is visible.

I suggest that an appropriate workaround be explained to all creators. The solution I have used is to create a sphere that has zero diameter and place this 10 meters above the highest point in the experience. The small diameter is to prevent it from casting a shadow. I named this object "Upper Limit Fake Object."

In the future, the Sansar team might develop a preferred solution that creators have not tried and provide leadership in this area.

6 comments

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  Praline August 05, 2017 19:59

  Thank you Ethos for this nice idea! I was looking for a solution!

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  cara August 22, 2017 00:05

  Hi Ethos, thanks for pointing this out. I'll check with the team about this issue and work with them about providing workarounds for it. 

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  gfcprogramer August 22, 2017 16:22

  Ethos, Try a new level and test its height only with native FBX structures.
   have one big issue, the whole level disappeared depending on angle, I realized I had 8 unused materials inside my fbx laser array, and this was breaking up entire level depending on how much material my camera had for each cubic meter. (It was about 1000' lasers with 8 materials each, but holding 128 pixels textures, yet too dense.)

  Now I'm optimizing to use one texture shared among all lasers, and I also did cages on fbx inside Blender instead of arranging them inside sansar lol. (The first red cage one is made with single lasers breaks easy and gave me 2 entire days of arrange laser by laser.).

  I'm not done yet with my laser optimizations.
  But now that the laser cage will have only one material activated on my slots, I can watch my levels from well above right now.

  But I also have another one Im using to test my lava videos, and he is having the same problem when I use many video-material textures together.

  I experience that problem when I use too much resources, and at this point it seems there is no way to see how much of Sansar resource safe limits you have, no one told me that 8 materials, even being very cheap 128 pixels, cannot be there in laser arrays when they reach thousants, or will break over the experience limits.

  Instead, .fbx cages works pretty well here.

  Im using instable eevee from beta blender here just for visualization.

  

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  gfcprogramer August 22, 2017 21:41

  As above there is so many materials, instead of having one material for each laser, I use one material that share same properties,

  
   like emission and diffuse, just change the UV from each single laser in a 128 pixels bitmap. that can hold up to 128 colors, one for each mapped laser pixel if I want.
  For now I found no way to use diffuse from in-world shaders.

   

  But the computing process of generating colors and other more details, will add a bit of expense to processor, while a texture is just loading, almost no computacional process is made. Maybe. Just maybe this is performance decision for a beta stage.

   

  Edited by gfcprogramer August 22, 2017 21:42
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  Ethos Erlanger August 23, 2017 00:36

  @gfcprogramer,

  My case was very straightforward. I brought in a gentle rolling  hill and valley to walk on. There were no textures or materials to complicate the question. As I walked up to the top of the hill my camera was above the highest point of the hill and suddenly I was unable to see anything at all. A simple ramp does the same thing. Walk up a ramp and as your camera gets above the highest part of the ramp, all of the experience disappears.

  I cannot guess what issue you are experiencing, but I do suggest that you submit a request and the Sansar support team may be able to look at you individual issue. I just do not think your issue is the same as mine.

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  OldVamp August 23, 2017 02:01

  I tend to put a bounding box around my experiences with a clear texture.

  They tend to be square so a box works just fine and prevents people from walking off the edge.

  I put a high ceiling on them so there is plenty of room to fly cam around (F4) without disappearing.

  one has a box of 256x256x256 : another 512x512x256