What is?

[Storm33229]

the next tutorial covering?

[Jeff]

Originally Posted by Storm33229

the next tutorial covering?

not sure yet, need to think about it. Any ideas?

[Storm33229]

Originally Posted by Jeff

not sure yet, need to think about it. Any ideas?

This is the site I'm currently looking at:
Blue Rose Games - XNA 101 Tutorials

[FingersMcSteal]

Be interested to see how to define 3 dimensional shapes, start with a simple cube and build from that small program you did to explain the spinning triangle... while i'm here can you explain this part please...

 
//Vertices of our primitive
vertices = new VertexPositionColor[3];
//Top left vertex
vertices[0].Position = new Vector3(-1, 1, 0);
//Top right vertex
vertices[1].Position = new Vector3(0, 2, 1);
//Bottom left vertex
vertices[2].Position = new Vector3(1, -1, 0);
//Setup the colors of each vertex
vertices[0].Color = Color.Red;
vertices[1].Color = Color.Blue;
vertices[2].Color = Color.Green;
//Index of each corner
indices = new int[] { 0, 1, 2 };
//Position of our primitive
position = Vector3.Zero;

If i'm getting this right (probably not but anyway...),

The 3D world is the matrix,
Vector3 is that particular triangle,
And thats defined here...

 
//Top left vertex
vertices[0].Position = new Vector3(-1, 1, 0);
//Top right vertex
vertices[1].Position = new Vector3(0, 2, 1);
//Bottom left vertex
vertices[2].Position = new Vector3(1, -1, 0);

The RED are x,y,z in 3D space??? (or am i way off) and what are they relative to?

And

 
//Index of each corner
indices = new int[] { 0, 1, 2 };

What roll does this line play in it?

The way i think it works is,
You have a primative (Your shape/object),
Which is made up of vertices,
Each vertice has a Vector3(-1, 1, 0) type definition ???, which are called indices???

Like... A Primative made up of vertices (Refrenced by Vector3?) and the indices are what make your shape?

Anyway... now i have a headache thinking about this i'll leave it in your hands .

[Chase.XNA]

Primative = A line (two vertices), point (one vertex), or triangle (three vertices).

A Vector is used to tell the graphics card where to draw a vertex (a group of vertexs are called vertices).

Vector3(X, Y, Z)

Indices are used when you have more then one vertex in the same spot, instead of using 2 vertices you can use indices to tell the graphics card something like "use the vertex at position X in the vertex buffer when drawing this vertex."

That should be right, but Jeff knows much more then I do and might be able to explain better.

[FingersMcSteal]

Ok, thanks... i kind of get it now.