Deformed mesh. (D3D9, .x)

[RaymondH]

Code: Select all

IAnimatedMeshSceneNode* Character;
Character = pManager->getSceneManager()->addAnimatedMeshSceneNode(
		pManager->getSceneManager()->getMesh("SimpleMan.x"));

pManager->getSceneManager() is equal to device->getSceneManager()

The reason why its an IAnimatedMeshSceneNode is because I want to be able to get the JointNode and attach a child mesh in the feature.

The problem:

As you can see, the mesh is completely deformed. Something that might be interesting to know is that this mesh has bones.

How it looks in blender:


Any idea? Need more information?


Thanks,

Raymond

[DarkDepths]

I guess the first thing I would try is re-exporting the mesh, only this time without bones, and seeing if the problem is still there. I suspect it wouldn't be, but confirmation would be good.

[RaymondH]

I guess the first thing I would try is re-exporting the mesh, only this time without bones, and seeing if the problem is still there. I suspect it wouldn't be, but confirmation would be good.

Thanks for the tip. Without the bones the mesh looks better. But, without bones irrlicht gives the following error: Too many vertices for 16bit index type, render artifacts may occur. And they occur.

With the bones, it does not give this error.

[Bate]

Doesn't look like more than 65536 vertices unless the sphere is way too detailed. You didn't insanely crank up the faces on the sphere, did you?

[RaymondH]

Doesn't look like more than 65536 vertices unless the sphere is way too detailed

Whole model:
4.5k verticles
4.5k faces

[DarkDepths]

Doesn't look like more than 65536 vertices unless the sphere is way too detailed

Sphere:
4.5k verticles
4.5k faces

4.5 k faces on a sphere...

That is WAY too many for a sphere...

Usually, when I make a sphere, I give it a maximum of 48 triangles.

I think it would be in your best interest to recreate this model in a lower-polygonal fashion...

I'm not sure it will help with your deformations, but it will save you a lot of computing power!

[Bate]

Did you try loading it in Irrlicht's MeshViewer? If not do so and look at the values shown there.

[RaymondH]

Did you try loading it in Irrlicht's MeshViewer? If not do so and look at the values shown there.

Loaded the model into the meshviewer, any specific value you are interested in?

Doesn't look like more than 65536 vertices unless the sphere is way too detailed

Sphere:
4.5k verticles
4.5k faces

4.5 k faces on a sphere...

That is WAY too many for a sphere...

Usually, when I make a sphere, I give it a maximum of 48 triangles.

I think it would be in your best interest to recreate this model in a lower-polygonal fashion...

I'm not sure it will help with your deformations, but it will save you a lot of computing power!

Renamed 'Sphere' to 'Whole model'. A little miscommunication between me and the graphic artist. He also made a character out of boxes and bones 5 minutes ago. Same problem as this character. So the problem must be something else. And bold text looks good ehhh

[Bate]

triangle count while the model is completely visible.

[RaymondH]

triangle count, while the model is completely visible

Tris stands for triangle count?
Ifso, the value is 18348.

[DarkDepths]

Renamed 'Sphere' to 'Whole model'. A little miscommunication between me and the graphic artist. He also made a character out of boxes and bones 5 minutes ago. Same problem as this character. So the problem must be something else.

Even still, for that specific model, 4.5k poly's is quite high. To illustrate, look at this model I just quickly whipped up:



Guess how many polygons...

646.

I know at this point it is a little off topic, but really, I think you would benefit from optimizing your model a bit.

As far as the deformation goes, I'm sorry, I can't help, so I'll stop filling up your thread with unrelated stuff, good-luck!

[Bate]

Yeah, then it's more of an exporting issue. Though it's weird because the error message appears to be wrong. Unfortunately, I can't help you with Blender since I'm not using it. (DarkDepths is right btw )

[RaymondH]

I'm happy with all the information I get. So thanks for that!

[stefbuet]

I use to have same deformation with the .X exporter I was using with 3dsmax (panda exporter). If I remember well, the problem was with bones position/rotation exportation. It had 2 options : export transformation matrix, or export absolution xyz value, one of those option made deformations like your model have, the other was fine (I don't remember which of those was the good one).

[RaymondH]

I use to have same deformation with the .X exporter I was using with 3dsmax (panda exporter). If I remember well, the problem was with bones position/rotation exportation. It had 2 options : export transformation matrix, or export absolution xyz value, one of those option made deformations like your model have, the other was fine (I don't remember which of those was the good one).

Great tip!

The graphic artist moved the middle of the model to 0,0,0 within blender and made a new export. This export renders succesfully using irrlicht.

Irrlicht does come up with a new error:
Unexpected ending found in Frame in x file.
Line: 46

Code: Select all

Mesh {
328;
-0.885700; 1.000000; -1.000000;,
-0.885700; -1.000000; -1.000000;,
-2.885700; -1.000000; -1.000000;,
-2.885700; 1.000000; -1.000000;,

Where the last line is line 46

Probably something we will have to fix ourselves :p