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Problem retexturing simplified meshes

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Problem retexturing simplified meshes // Bugs

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Post by Albian // Apr 20, 2006, 5:59am

Albian
Total Posts: 2
 Don't think this is a repetition. Apologies if it is.


Truespace 7.1

- Go to Dual View.

- Create an object - a sphere, say

- Use the Simplify Mesh tool on it

- Try recolouring it or giving it a texture


On my machine the colour changes in the model view but not the player view.


Albian

Post by TomG // Apr 20, 2006, 11:27am

TomG
Total Posts: 3397
 This is because the simplification is dynamic. What you end up with is two objects really - the original (which gets hidden), and the simplified (which is visible). Now the simplified one is a procedural object, since it can be recreated at any point (by redoing the slider for the simplication, to change how much simplification happens, it regenerates the visible object).


Given that its procedural, what you see in the Modeler is not really there in some ways ;) This is different from the old tS simplify, which destroyed the original mesh and left only the final mesh.


The issue mainly is in trying to preserve textures and mapping from the non-simplified object, since a lot of the time you will want to be simplifying something that is already finished (ie textured etc). This is why there is a difference in texturing, as the procedural object is having that created from the original object. Texturing in the Modeler is different from texturing in the player (which you can still do and it shows properly on both).


The big question of course is that if you "paint a face" what are you painting exactly, the original face, or the simplified face (that combines multiple faces into one) - and so on and so forth. Being procedural rather than static makes the question of texturing somewhat thorny :)


Solution? Complete texturing on the high poly, then simplify. Alternatively, check the manual and it shows you how to extract the simplified mesh as a permanent, regular stand alone (non-procedural) object. This extracted mesh will then texture regularly in Player and Modeler since it will not be procedural any more.


HTH!

Tom


EDIT: PS - of course this all arises from a benefit of the tool, which is that it does a good job of preserving / converting UV and texturing onto simplified objects, and that you can change your mind about how much simplification to do. Downside is this issue that texturing in the modeler is no longer a meaningful operation.

Post by tomasb // Apr 20, 2006, 11:52am

tomasb
Total Posts: 261
 No Tom, this is a bug.


if Albian is trying to re-color in Modeler side than Bridge should disconnect simplified mesh from node's output and convert painted object from Modeler and put it in Shape node and export it's mesh. Also new materials should be converted.

Post by TomG // Apr 21, 2006, 1:43am

TomG
Total Posts: 3397
 Sounds good to me if it can be fixed (even if I didn't understand the solution :) )


Thanks!

Tom

Post by Albian // Apr 21, 2006, 5:42am

Albian
Total Posts: 2
 Thanks Tom - the complications involved hadn't occurred to me. But I think Tomas is right - I can recolor it in the modeler but the change just doesn't cross the bridge.


I'll try extracting the simplified mesh though and recolour that.


Cheers.
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