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POLearning XNA 3.1 Vs XNA 4.0
 

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  1. POLearning XNA 3.1 Vs XNA 4.0
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    <p>I am starting out learning XNA and its going smoothly. However I wonder if I am shooting myself in the foot by learning 3.1 not 4.0?</p> <p>I am aware of whats new: <a href="http://msdn.microsoft.com/en-us/library/bb417503.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/bb417503.aspx</a>, and that mostly seems to be phone, interfaces and video features - which I am not so interested in - I am more doing the core 3D stuff. </p> <p>The sticking point is: <strong>I have Visual Studio 2008 professional already and do not want to get VS 2010 if there is little difference in the game programming in 4.0.</strong></p> <p><strong>Has the world moved on? Is what I am learning in 3.1 going to be come redundant?</strong></p> <p>There are also code differences in libraries, but they are not major, many of them can be seen here: <a href="http://www.nelxon.com/blog/xna-3-1-to-xna-4-0-cheatsheet/" rel="nofollow">http://www.nelxon.com/blog/xna-3-1-to-xna-4-0-cheatsheet/</a>, for instance this one which I had to figure out compared to Riemers Tut:</p> <p><strong>XNA 4.0</strong></p> <pre><code> protected override void Draw(GameTime gameTime) { device.Clear(Color.DarkSlateBlue); RasterizerState rs = new RasterizerState(); rs.CullMode = CullMode.None; device.RasterizerState = rs; effect.CurrentTechnique = effect.Techniques["ColoredNoShading"]; effect.Parameters["xView"].SetValue(viewMatrix); effect.Parameters["xProjection"].SetValue(projectionMatrix); effect.Parameters["xWorld"].SetValue(Matrix.Identity); foreach (EffectPass pass in effect.CurrentTechnique.Passes) { pass.Apply(); device.DrawUserPrimitives(PrimitiveType.TriangleList, vertices, 0, 1, VertexPositionColor.VertexDeclaration); } base.Draw(gameTime); } </code></pre> <p><strong>XNA 3.1</strong></p> <pre><code> protected override void Draw(GameTime gameTime) { device.Clear(Color.DarkSlateBlue); device.VertexDeclaration = new VertexDeclaration(device, VertexPositionColor.VertexElements); device.RenderState.CullMode = CullMode.None; // TODO only for testing! device.RenderState.FillMode = FillMode.Solid; effect.CurrentTechnique = effect.Techniques["ColoredNoShading"]; effect.Parameters["xView"].SetValue(viewMatrix); effect.Parameters["xProjection"].SetValue(projectionMatrix); effect.Parameters["xWorld"].SetValue(Matrix.Identity); effect.Begin(); foreach (EffectPass pass in effect.CurrentTechnique.Passes) { pass.Begin(); device.DrawUserIndexedPrimitives&lt;VertexPositionColor&gt;(PrimitiveType.TriangleList, vertices, 0, 5, indices, 0, indices.Length / 3); pass.End(); } effect.End(); base.Draw(gameTime); } </code></pre>
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    1. COFor those voting to close - where else can I ask this programming question?
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    2. COTry asking your question at GameDev Stack Exchange (http://gamedev.stackexchange.com/) if it gets closed here.
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    3. COXNA with Visual Studio are software tools commonly used by programmers. According to the faq this relates it to software development, not sure that it should have been closed.
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