DrawMeshBuffer with *.obj files - empty mesh buffer

[jcarew]

If I render *.ms3d mesh by:

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Driver->drawMeshBuffer(mesh->getMeshBuffer(0));

All it's ok but if I render *.obj per drawMeshBuffer my mesh, I don't see my mesh:( Why? With smgr->drawAll(); it's ok, but I need drawMeshBuffer support for obj.

[vitek]

You need to set the material and the world transform before you draw anything. Look at the implementation of the render() method of any of the scene nodes. They all do this, but your code does not.

[jcarew]

I add set the material and the world transform before drawMeshBuffer, but mesh isn't visible and function getPrimitiveCountDrawn() show 0 triagles.

My code look like this:

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IAnimatedMesh* mesh = SceneManager->getMesh("human.obj");
// next I add nodes, position etc...
scene::IMeshBuffer* mb = mesh2->getMeshBuffer(0);
// Now test function:
if(!mb)
printf("Error");
// Other code from application...

Why mesh buffer isn't create? With IMesh* mesh I too have error. If I load human.ms3d it's ok... I think that is problem with SMesh and IMesh structures.

[CuteAlien]

You create "mesh" and use "mesh2". Looks like two different variables to me.

edit: Btw. to test if you .obj does work you can load it in the meshviewer (example 09).

[jcarew]

Of course in code I use mesh:)

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scene::IMeshBuffer* mb = mesh->getMeshBuffer(0); 

In MeshViewer and with function render() and drawAll() mesh is properly display, but If I try getMeshBuffer, my buffer is empty:/

[CuteAlien]

Just guessing, but maybe several buffers are created and the first one is really empty? I think something like that could maybe happen if a material is defined but never used. Not sure, but you could try getting the other meshbuffers.

[jcarew]

With mesh *.X, *.B3D, *.MS3D it's ok, but with *.OBJ, *.3DS is this problem... I think, than this work only with SAnimatedMesh structure and SMeshBuffer structure...

[Nadro]

You have to render mesh by this steps:
1. You create an IAnimatedMesh eg:

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IAnimatedMesh* mesh = SceneManager->getMesh("human.obj");

2. You have to return a mesh to other IMesh eg:

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IMesh* m = mesh->getMesh(0, 255, 0, 0);

3. You create an IMeshBuffer eg:

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IMeshBuffer* mb = m->getMeshBuffer(0);

4. Now You can display all meshes (obj, 3ds, b3d etc.) by drawMeshBuffer eg:

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Driver->drawMeshBuffer(mb);

You need set world transform;)

[jcarew]

Now it's ok:) Big Thanks Nadro