public void SetVertices(Vector3f[] verts) { if (fVertexBufferObject != null) { fVertexBufferObject.Dispose(); fVertexBufferObject = null; } // Write the vertex data to the buffer GCHandle dataPtr = GCHandle.Alloc(verts, GCHandleType.Pinned); int dataSize = Marshal.SizeOf(typeof(Vector3f)) * verts.Length; fVertexBufferObject = new VertexBufferObject(GI); fVertexBufferObject.Bind(); fVertexBufferObject.Size = dataSize; try { fVertexBufferObject.Bind(); fVertexBufferObject.Write(dataPtr.AddrOfPinnedObject(), 0, dataSize); } finally { fVertexBufferObject.Unbind(); dataPtr.Free(); } }
static void Main(string[] args) { Skybox skybox = null; VertexBuffer vertexBuffer = null; IndexBuffer indexBuffer = null; Material material = null; int renderable = -1; Camera camera = null; int cameraEntity = -1; var vbo = new VertexBufferObject(); vbo.Write(new Vector2(1, 0)); vbo.Write(0xffff0000u); vbo.Write(new Vector2(MathF.Cos(MathF.PI * 2 / 3), MathF.Sin(MathF.PI * 2 / 3))); vbo.Write(0xff00ff00u); vbo.Write(new Vector2(MathF.Cos(MathF.PI * 4 / 3), MathF.Sin(MathF.PI * 4 / 3))); vbo.Write(0xff0000ffu); var app = new Application( new WindowConfig() { Title = "hellotriangle", }, new ApplicationConfig() ); app.Setup = (engine, view, scene) => { skybox = SkyboxBuilder.Create() .WithColor(new Color(0.1f, 0.125f, 0.25f, 1.0f)) .Build(engine); scene.Skybox = skybox; view.PostProcessingEnabled = false; vertexBuffer = VertexBufferBuilder.Create() .WithVertexCount(3) .WithBufferCount(1) .WithAttribute(VertexAttribute.Position, 0, ElementType.Float2, 0, 12) .WithAttribute(VertexAttribute.Color, 0, ElementType.UByte4, 8, 12) .WithNormalized(VertexAttribute.Color) .Build(engine); vertexBuffer.SetBufferAt(engine, 0, vbo); indexBuffer = IndexBufferBuilder.Create() .WithIndexCount(3) .WithBufferType(IndexType.UShort) .Build(engine); indexBuffer.SetBuffer(engine, TRIANGLE_INDICES); var sampleData = new SampleDataLoader(); material = MaterialBuilder.Create() .WithPackage(sampleData.LoadBakedColor()) .Build(engine); renderable = EntityManager.Create(); RenderableBuilder.Create() .WithBoundingBox( new Box( new Vector3(-1, -1, -1), new Vector3(1, 1, 1) ) ) .WithMaterial(0, material.DefaultInstance) .WithGeometry(0, PrimitiveType.Triangles, vertexBuffer, indexBuffer, 0, 3) .WithCulling(false) .WithReceiveShadows(false) .WithCastShadows(false) .Build(engine, renderable); scene.AddEntity(renderable); cameraEntity = EntityManager.Create(); camera = engine.CreateCamera(cameraEntity); view.Camera = camera; }; app.Cleanup = (engine, view, scene) => { engine.Destroy(skybox); engine.Destroy(renderable); engine.Destroy(material); engine.Destroy(vertexBuffer); engine.Destroy(indexBuffer); engine.DestroyCameraComponent(cameraEntity); EntityManager.Destroy(cameraEntity); }; app.Animate = (engine, view, now) => { var ZOOM = 1.5f; var w = view.Viewport.Width; var h = view.Viewport.Height; ; var aspect = (float)w / h; camera.SetProjection(Projection.Ortho, -aspect * ZOOM, aspect * ZOOM, -ZOOM, ZOOM, 0, 1); var tcm = engine.TransformManager; tcm.SetTransform(tcm.GetInstance(renderable), Matrix4x4.CreateFromAxisAngle(Vector3.UnitZ, now)); }; app.Run(); }
static void Main(string[] args) { Texture texture = null; Skybox skybox = null; VertexBuffer vertexBuffer = null; IndexBuffer indexBuffer = null; Material material = null; MaterialInstance materialInstance = null; Camera camera = null; int cameraEntity = -1; int renderable = -1; var app = new Application( new WindowConfig() { Title = "texturedquad" }, new ApplicationConfig() ); app.Setup = (engine, view, scene) => { var path = Path.Combine(app.RootAssetPath, "textures/Moss_01/Moss_01_Color.png"); if (!File.Exists(path)) { Console.WriteLine("The texture {0} does not exist", path); Environment.Exit(1); } using (var stream = File.OpenRead(path)) { var imageResult = ImageResult.FromStream(stream, ColorComponents.RedGreenBlueAlpha); Console.WriteLine("Loaded texture: {0}x{1}", imageResult.Width, imageResult.Height); var pixelBuffer = new PixelBufferDescriptor(imageResult.Data, PixelDataFormat.Rgba, PixelDataType.UByte); texture = TextureBuilder.Create() .WithWidth(imageResult.Width) .WithHeight(imageResult.Height) .WithLevels(1) .WithSampler(TextureSamplerType.Texture2d) .WithFormat(TextureFormat.Rgba8) .Build(engine); texture.SetImage(engine, 0, pixelBuffer); } // Set up view skybox = SkyboxBuilder.Create() .WithColor(new Color(0.1f, 0.125f, 0.25f, 1.0f)) .Build(engine); scene.Skybox = skybox; cameraEntity = EntityManager.Create(); camera = engine.CreateCamera(cameraEntity); view.PostProcessingEnabled = false; view.Camera = camera; // Create quad renderable var vbo = new VertexBufferObject(); vbo.Write(new Vector2(-1, -1)); vbo.Write(new Vector2(0, 0)); vbo.Write(new Vector2(1, -1)); vbo.Write(new Vector2(1, 0)); vbo.Write(new Vector2(-1, 1)); vbo.Write(new Vector2(0, 1)); vbo.Write(new Vector2(1, 1)); vbo.Write(new Vector2(1, 1)); vertexBuffer = VertexBufferBuilder.Create() .WithVertexCount(4) .WithBufferCount(1) .WithAttribute(VertexAttribute.Position, 0, ElementType.Float2, 0, 16) .WithAttribute(VertexAttribute.Uv0, 0, ElementType.Float2, 8, 16) .Build(engine); vertexBuffer.SetBufferAt(engine, 0, vbo); var sampleData = new SampleDataLoader(); indexBuffer = IndexBufferBuilder.Create() .WithIndexCount(6) .WithBufferType(IndexType.UShort) .Build(engine); indexBuffer.SetBuffer(engine, QUAD_INDICES); material = MaterialBuilder.Create() .WithPackage(sampleData.LoadBakedTexture()) .Build(engine); var sampler = new TextureSampler(SamplerMinFilter.Linear, SamplerMagFilter.Linear); materialInstance = material.CreateInstance(); materialInstance.SetParameter("albedo", texture, sampler); renderable = EntityManager.Create(); RenderableBuilder.Create() .WithBoundingBox( new Box( new Vector3(-1, -1, -1), new Vector3(1, 1, 1) ) ) .WithMaterial(0, materialInstance) .WithGeometry(0, PrimitiveType.Triangles, vertexBuffer, indexBuffer, 0, 6) .WithCulling(false) .WithReceiveShadows(false) .WithCastShadows(false) .Build(engine, renderable); scene.AddEntity(renderable); }; app.Cleanup = (engine, view, scene) => { engine.Destroy(skybox); engine.Destroy(renderable); engine.Destroy(materialInstance); engine.Destroy(material); engine.Destroy(texture); engine.Destroy(vertexBuffer); engine.Destroy(indexBuffer); engine.DestroyCameraComponent(cameraEntity); EntityManager.Destroy(cameraEntity); }; app.Animate = (engine, view, now) => { var zoom = 2.0f + 2.0f * MathF.Sin(now); var width = view.Viewport.Width; var height = view.Viewport.Height; var aspect = (float)width / (float)height; camera.SetProjection(Projection.Ortho, -aspect * zoom, aspect * zoom, -zoom, zoom, -1, 1 ); }; app.Run(); }
public void SetTextureCoordinates(TextureCoordinates[] coords) { if (fTextureBufferObject != null) { fTextureBufferObject.Dispose(); fTextureBufferObject = null; } // Write the vertex data to the buffer GCHandle dataPtr = GCHandle.Alloc(coords, GCHandleType.Pinned); int dataSize = Marshal.SizeOf(typeof(TextureCoordinates)) * coords.Length; fTextureBufferObject = new VertexBufferObject(GI); fTextureBufferObject.Bind(); fTextureBufferObject.Size = dataSize; try { fTextureBufferObject.Bind(); fTextureBufferObject.Write(dataPtr.AddrOfPinnedObject(), 0, dataSize); } finally { fTextureBufferObject.Unbind(); dataPtr.Free(); } }