Comment Feed for Channel 9 - We're all one little world... as shown with the Silverlight 5 3D sample, Solar Wind http://files.channel9.msdn.com/thumbnail/d4b8c248-9bdf-43b1-9e5d-f73a0ef6b646.png Channel 9 - We're all one little world... as shown with the Silverlight 5 3D sample, Solar Wind What I liked about this sample was that it was 'simple,' focusing on one primary thing and yet was pretty cool looking. And there's just something about seeing our little ball of dirt and rock from space that appeals to the frustrated space voyager in me. [Insert quip, "Look! You can see my house from here!" ] Solar Wind 3D Sample This sample for Silverlight 5 uses the new 3D features to draw the Earth with day and night transitions, atmosphere layers, and population density overlays. It demonstrates advanced concepts like mipmaps, texture blending, multiple drawing passes, sampler states, and lighting. Note the "Building the Sample" section (which of course I didn't until I tried to run it the first time... Note to self: RTFP [Read The Fine Post]... Building the Sample To compile the solution you will need to install the DirectX SDK and the HLSL Shader Build Task. Afterwards you can open the solution in Visual Studio to build. Here's another shot, showing off some of the other capabilities, like the rotation and Magnetic Field overlay The solution is pretty straight forward, with more files for the shaders and textures than for code... Here's the Earth class; public Earth() { Transform = Matrix.CreateWorld(new Vector3(), Vector3.Forward, Vector3.Up);  AtmosphereVisible = true; MagneticFieldVisible = false; PopulationDensityVisible = false; ShowWireframe = false; }Now lets load the shaders and textures. void LoadEarthContent() { // Load mesh mesh = new SpherePrimitive(10.0f, 50);  // // Load shaders // earthVertexShader = ContentManager.LoadVertexShader("Shaders/Earth_vs.vs"); earthPixelShader = ContentManager.LoadPixelShader("Shaders/Earth_ps.ps"); // // Load textures // dayTexture = ContentManager.LoadTexture("Textures/Earth/EarthDay.png", true); nightTexture = ContentManager.LoadTexture("Textures/Earth/EarthNight.png", true); nightLightsTexture = ContentManager.LoadTexture("Textures/Earth/EarthNightLights.png", true); normalTexture = ContentManager.LoadTexture("Textures/Earth/EarthNormal.png", true); maskTexture = ContentManager.LoadTexture("Textures/Earth/EarthMask.png", true); }Here's a snap of those textures; Drawing the world... public void Draw(GraphicsDevice device, SceneTime time, Camera camera) { // All Earth pass shaders use the same constants so update them each frame UpdateEarthShaderConstants(device, time, camera);  // // Pass 1 - Draw Earth //  // Set textures in order of samplers device.Textures[0] = dayTexture; device.Textures[1] = nightTexture; device.Textures[2] = nightLightsTexture; device.Textures[3] = normalTexture; device.Textures[4] = maskTexture;  // Set states to control sampling device.SamplerStates[0] = SamplerState.AnisotropicClamp; device.SamplerStates[1] = SamplerState.AnisotropicClamp; device.SamplerStates[2] = SamplerState.AnisotropicClamp; device.SamplerStates[3] = SamplerState.AnisotropicClamp; device.SamplerStates[4] = SamplerState.AnisotropicClamp; // Set device states device.BlendState = BlendState.Opaque; device.RasterizerState = rasterizerState;  // Configure shading pipeline device.SetVertexShader(earthVertexShader); device.SetPixelShader(earthPixelShader);  // Draw the main earth pass mesh.Draw(device);  // Draw atmosphere layer if (AtmosphereVisible) atmosphereLayer.Draw(device);  // Draw population layer if (PopulationDensityVisible) populationLayer.Draw(device);  // Draw magnetic field if (MagneticFieldVisible) field.Draw(device, time, camera); }And finally updating it as the world rotates. void UpdateEarthShaderConstants(GraphicsDevice device, SceneTime time, Camera camera) { // Get the inverse transpose matrix Matrix WorldInverseTransposeMatrix = Matrix.Invert(Transform); WorldInverseTransposeMatrix = Matrix.Transpose(WorldInverseTransposeMatrix);  // Set the primary vertex constants earthConstants.WorldMatrix = Transform; earthConstants.WorldInverseTransposeMatrix = Matrix.Transpose(Matrix.Invert(Transform)); earthConstants.WorldViewProjectionMatrix = Transform * camera.ViewTransform * camera.ProjectionTransform; earthConstants.ViewInverseMatrix = Matrix.Invert(camera.ViewTransform); earthConstants.TotalSeconds.X = (float)time.TotalTime.TotalSeconds; device.SetVertexShaderConstantFloat4(0, ref earthConstants);  // Set the pixel shader constants (to achieve solid lighting in wireframe mode) if(ShowWireframe) device.SetPixelShaderConstantFloat4(0, ref showWireframeValue); else device.SetPixelShaderConstantFloat4(0, ref hideWireframeValue); }  If you're looking at Silverlight 5's 3D capabilities, then this, or other samples from the MIX11 Silverlight 3D session, should be worth a peek... Here’s a few more links you might find interesting: Silverlight 3D : Tri-Winning (Part 1)Housebuilding with John Papa and Sliverlight 5 at MIX11Aaron Oneal's Blog (Sample author and has a number of additional Silverlight 3D posts) 3D Graphics OverviewMIX11 Silverlight 3D Session  Page thumbnail, Day 432 / 365 - It's a small world, curtsey of xJasonRogersx en Wed, 19 Jun 2013 11:08:23 GMT Wed, 19 Jun 2013 11:08:23 GMT Rev9 Re: We're all one little world... as shown with the Silverlight 5 3D sample, Solar Wind I have a question re Silverlight 3D, i hope maybe you could help. Is it relateded to DirectX? and more importantly, is it supported on the Mac?

 

Thx

posted by fanbaby

]]> http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634425980570000000 Thu, 02 Jun 2011 07:54:17 GMT http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634425980570000000 fanbaby Re: We're all one little world... as shown with the Silverlight 5 3D sample, Solar Wind @fanbaby: Silverlight is cross platform so yes to supported on the mac.  For DirectX, what do you mean?

posted by Clint

]]> http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634426819000000000 Fri, 03 Jun 2011 07:11:40 GMT http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634426819000000000 Clint Re: We're all one little world... as shown with the Silverlight 5 3D sample, Solar Wind @Clint: I meant: is 3d supported on the Mac. I think the answer is not right now, and I wanted more info about this, hence the question about directx

posted by fanbaby

]]> http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634427878110000000 Sat, 04 Jun 2011 12:36:51 GMT http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634427878110000000 fanbaby Re: We're all one little world... as shown with the Silverlight 5 3D sample, Solar Wind great demo! 3ku

posted by jpr1990

]]> http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634439920880000000 Sat, 18 Jun 2011 11:08:08 GMT http://channel9.msdn.com/coding4fun/blog/Were-all-one-little-world-as-shown-with-the-Silverlight-5-3D-sample-Solar-Wind#c634439920880000000 jpr1990