How to create a mesh giving it's vertexes?

[WindScar]

For instance:
IMesh * createMesh(v3d(0,0,0),v3d(1,0,0),v3d(0,1,0),v3d(1,0,0));

To create a simple pyramid. What's the right code for it?
Thanks in advance.

[cookie]

Out of the exampleSceneNodePlugin from irrEdit:


Pyramid:

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video::S3DVertex Vertices[4];

Vertices[0] = video::S3DVertex(0,0,10, 1,1,0, video::SColor(255,0,255,255), 0, 1);
	Vertices[1] = video::S3DVertex(10,0,-10, 1,0,0, video::SColor(255,255,0,255), 1, 1);
	Vertices[2] = video::S3DVertex(0,20,0, 0,1,1, video::SColor(255,255,255,0), 1, 0);
	Vertices[3] = video::S3DVertex(-10,0,-10, 0,0,1, video::SColor(255,0,255,0), 0, 0);

And here for a cube:

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video::S3DVertex Vertices[8];

Vertices[0] = video::S3DVertex(-5,-5,-5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[1] = video::S3DVertex(5,-5,-5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[2] = video::S3DVertex(5,-5,5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[3] = video::S3DVertex(-5,-5,5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[4] = video::S3DVertex(-5,5,5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[5] = video::S3DVertex(-5,5,-5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[6] = video::S3DVertex(5,5,-5, 0,0,0, video::SColor(200,255,255,255), 0, 0);
	Vertices[7] = video::S3DVertex(5,5,5, 0,0,0, video::SColor(200,255,255,255), 0, 0);

Maybe it helps

[WindScar]

But can that be converted to a IMesh object?

[hybrid]

Check out example 22, it creates meshes manually.

[slavik262]

Remember that meshes (or more specifically, the mesh buffers in an IMesh) are made up of two things: vertices and indices. The indices are just as important since they tell the program how to connect the vertices you gave it into triangles.

[WindScar]

True. Can you tell me or link me to an explanation about indices?

[zeph]

i like this explanation - http://www.riemers.net/eng/Tutorials/Di ... 1/tut9.php