Tessellation

[UniqueOne]

Today I added tessellation.

 

 

 

 

Tessellation takes the triangles of a model and converts that triangle into multiple smaller triangles and applies a rounding effect to make models and maps more detailed.

 

 

 

Example of what tessellation does.

 
 
 
 

Here are some screenshots of it working in Warzone.

 

Tessellation OFF

 

 

Tessellation ON (exagerated a bit to make it obvious)

[eezstreet]

Wow, I just saw this and that's pretty cool. Is this an extension of rend2?

[UniqueOne]

Wow, I just saw this and that's pretty cool. Is this an extension of rend2?

 

Yep

[Futuza]

I seem to remember cryengine used tesselation (I might be remembering completely wrong though) to do tiny little vibrations (animations) with each sub triangle on certain surfaces to make it move more realistically as well.  eg: grass sways a bit.  Would something like that work in conjunction with this?

[UniqueOne]

I seem to remember cryengine used tesselation (I might be remembering completely wrong though) to do tiny little vibrations (animations) with each sub triangle on certain surfaces to make it move more realistically as well.  eg: grass sways a bit.  Would something like that work in conjunction with this?

 

It could be used for stuff like that, but adding extra triangles to grass would be a pretty bad FPS hit (due to there being so many instances on screen).

[ensiform]

Tessellation is used in rise of the tomb raider for places that make sense like the craggy climbing walls, brick surfaces deep snow with tracks where things were walking in and probably others that I'm forgetting.

[Tempust85]

I take it the seats are more detailed? Sorry, I'm having issue trying to find out the difference between the shots.

[UniqueOne]

I take it the seats are more detailed? Sorry, I'm having issue trying to find out the difference between the shots.

 

Look along the top of the back of the seats in the 2 pictures and flick up/down between them.

[Raz0r]

Everything in Warzone is too dark and saturated to really tell the quality apart

[SomaZ]

Very nice. You allready implemented the use of height maps? Does the iterations scale with distance? Right now it looks like a turbosmooth modifier from 3dsmax for warzone. Tell us more pls.

[SomaZ]

I seem to remember cryengine used tesselation (I might be remembering completely wrong though) to do tiny little vibrations (animations) with each sub triangle on certain surfaces to make it move more realistically as well.  eg: grass sways a bit.  Would something like that work in conjunction with this?

They used it for an example for the ocean waves based on your distance to the water patch. The nearer you got, the more tesselated the water patch was. Then, the vertecies got pushed up and down by height maps. Gras didn't take advantage of it as far as i know.

 

[UniqueOne]

Very nice. You allready implemented the use of height maps? Does the iterations scale with distance? Right now it looks like a turbosmooth modifier from 3dsmax for warzone. Tell us more pls.

 

This is the PN triangles method of tessellation. I plan to add heightmap based tessellation for models later, if any modelers want it.

[UniqueOne]

They used it for an example for the ocean waves based on your distance to the water patch. The nearer you got, the more tesselated the water patch was. Then, the vertecies got pushed up and down by height maps. Gras didn't take advantage of it as far as i know.

 

 

The current method uses distance for the number of splits on a triangle.