static void Main(string[] args) { Texture offscreenColorTexture = null; Texture offscreenDepthTexture = null; Filament.RenderTarget offscreenRenderTarget = null; View offscreenView = null; Scene offscreenScene = null; Camera offscreenCamera = null; int lightEntity = -1; Material meshMaterial = null; MaterialInstance meshMatInstance = null; Mesh monkeyMesh = null; int reflectedMonkey = -1; Matrix4x4 transform = Matrix4x4.Identity; int quadEntity = -1; Vector3 quadCenter = Vector3.Zero; Vector3 quadNormal = Vector3.Zero; VertexBuffer quadVb = null; IndexBuffer quadIb = null; Material quadMaterial = null; MaterialInstance quadMatInstance = null; ReflectionMode mode = ReflectionMode.Camera; var app = new Application( new WindowConfig() { Title = "rendertarget", }, new ApplicationConfig() ); app.Setup = (engine, view, scene) => { var tcm = engine.TransformManager; var rcm = engine.RenderableManager; var vp = view.Viewport; var resourceData = new SampleDataLoader(); var monkeyData = new MonkeyDataLoader(); // Instantiate offscreen render target. offscreenScene = engine.CreateScene(); offscreenView = engine.CreateView(); offscreenView.Scene = offscreenScene; offscreenView.PostProcessingEnabled = false; offscreenColorTexture = TextureBuilder.Create() .WithWidth(vp.Width) .WithHeight(vp.Height) .WithLevels(1) .WithUsage(TextureUsage.ColorAttachment | TextureUsage.Sampleable) .WithFormat(TextureFormat.Rgba8) .Build(engine); offscreenDepthTexture = TextureBuilder.Create() .WithWidth(vp.Width) .WithHeight(vp.Height) .WithLevels(1) .WithUsage(TextureUsage.DepthAttachment) .WithFormat(TextureFormat.Depth24) .Build(engine); offscreenRenderTarget = RenderTargetBuilder.Create() .WithTexture(AttachmentPoint.Color, offscreenColorTexture) .WithTexture(AttachmentPoint.Depth, offscreenDepthTexture) .Build(engine); offscreenView.RenderTarget = offscreenRenderTarget; offscreenView.Viewport = new Viewport(0, 0, vp.Width, vp.Height); offscreenCamera = engine.CreateCamera(EntityManager.Create()); offscreenView.Camera = offscreenCamera; app.AddOffscreenView(offscreenView); // Position and orient the mirror in an interesting way. var c = quadCenter = new Vector3(-2, 0, -5); var n = quadNormal = Vector3.Normalize(new Vector3(1, 0, 2)); var u = Vector3.Normalize(Vector3.Cross(quadNormal, new Vector3(0, 1, 0))); var v = Vector3.Cross(n, u); u = 1.5f * u; v = 1.5f * v; Vertex[] kQuadVertices = { new() { Position = c - u - v, Uv = new Vector2(1, 0) }, new() { Position = c + u - v, Uv = new Vector2(0, 0) }, new() { Position = c - u + v, Uv = new Vector2(1, 1) }, new() { Position = c + u + v, Uv = new Vector2(0, 1) }, }; var vbo = new byte[20 * 4]; MemoryStream vboStream = new MemoryStream(vbo); BinaryWriter vboWriter = new BinaryWriter(vboStream); vboWriter.Write(kQuadVertices[0].Position.X); vboWriter.Write(kQuadVertices[0].Position.Y); vboWriter.Write(kQuadVertices[0].Position.Z); vboWriter.Write(kQuadVertices[0].Uv.X); vboWriter.Write(kQuadVertices[0].Uv.Y); vboWriter.Write(kQuadVertices[1].Position.X); vboWriter.Write(kQuadVertices[1].Position.Y); vboWriter.Write(kQuadVertices[1].Position.Z); vboWriter.Write(kQuadVertices[1].Uv.X); vboWriter.Write(kQuadVertices[1].Uv.Y); vboWriter.Write(kQuadVertices[2].Position.X); vboWriter.Write(kQuadVertices[2].Position.Y); vboWriter.Write(kQuadVertices[2].Position.Z); vboWriter.Write(kQuadVertices[2].Uv.X); vboWriter.Write(kQuadVertices[2].Uv.Y); vboWriter.Write(kQuadVertices[3].Position.X); vboWriter.Write(kQuadVertices[3].Position.Y); vboWriter.Write(kQuadVertices[3].Position.Z); vboWriter.Write(kQuadVertices[3].Uv.X); vboWriter.Write(kQuadVertices[3].Uv.Y); // Create quad vertex buffer. quadVb = VertexBufferBuilder.Create() .WithVertexCount(4) .WithBufferCount(1) .WithAttribute(VertexAttribute.Position, 0, ElementType.Float3, 0, 20) .WithAttribute(VertexAttribute.Uv0, 0, ElementType.Float2, 12, 20) .Build(engine); quadVb.SetBufferAt(engine, 0, vbo); // Create quad index buffer. var kQuadIndices = new ushort[] { 0, 1, 2, 3, 2, 1 }; quadIb = IndexBufferBuilder.Create() .WithIndexCount(6) .WithBufferType(IndexType.UShort) .Build(engine); quadIb.SetBuffer(engine, kQuadIndices); // Create quad material and renderable. quadMaterial = MaterialBuilder.Create() .WithPackage(resourceData.LoadMirror()) .Build(engine); quadMatInstance = quadMaterial.CreateInstance(); var sampler = new TextureSampler(SamplerMinFilter.Linear, SamplerMagFilter.Linear); quadMatInstance.SetParameter("albedo", offscreenColorTexture, sampler); quadEntity = EntityManager.Create(); RenderableBuilder.Create() .WithBoundingBox( new Box( new Vector3(-1, -1, -1), new Vector3(1, 1, 1) ) ) .WithMaterial(0, quadMatInstance) .WithGeometry(0, PrimitiveType.Triangles, quadVb, quadIb, 0, 6) .WithCulling(false) .WithReceiveShadows(false) .WithCastShadows(false) .Build(engine, quadEntity); scene.AddEntity(quadEntity); // Instantiate mesh material. meshMaterial = MaterialBuilder.Create() .WithPackage(resourceData.LoadAiDefaultMat()) .Build(engine); var mi = meshMatInstance = meshMaterial.CreateInstance(); mi.SetParameter("baseColor", RgbType.Linear, new Color(0.8f, 1.0f, 1.0f)); mi.SetParameter("metallic", 0.0f); mi.SetParameter("roughness", 0.4f); mi.SetParameter("reflectance", 0.5f); // Add monkey into the scene. monkeyMesh = MeshReader.LoadFromBuffer(engine, monkeyData.LoadSuzanne(), mi); var ti = tcm.GetInstance(monkeyMesh.Renderable); transform = Matrix4x4.CreateTranslation(0, 0, -4) * tcm.GetWorldTransform(ti); rcm.SetCastShadows(rcm.GetInstance(monkeyMesh.Renderable), false); scene.AddEntity(monkeyMesh.Renderable); // Create a reflected monkey, which is used only for ReflectionMode::RENDERABLES. reflectedMonkey = EntityManager.Create(); RenderableBuilder.Create() .WithBoundingBox( new Box( new Vector3(-2, -2, -2), new Vector3(2, 2, 2) ) ) .WithMaterial(0, mi) .WithGeometry(0, PrimitiveType.Triangles, monkeyMesh.VertexBuffer, monkeyMesh.IndexBuffer) .WithReceiveShadows(true) .WithCastShadows(false) .Build(engine, reflectedMonkey); mode = SetReflectionMode(offscreenScene, offscreenView, reflectedMonkey, monkeyMesh, ReflectionMode.Camera); // Add light source to both scenes. // NOTE: this is slightly wrong when the reflection mode is RENDERABLES. lightEntity = EntityManager.Create(); LightBuilder.Create(LightType.Sun) .WithColor(Color.ToLinearAccurate(new sRGBColor(0.98f, 0.92f, 0.89f))) .WithIntensity(110000) .WithDirection(new Vector3(0.7f, -1, -0.8f)) .WithSunAngularRadius(1.9f) .WithCastShadows(false) .Build(engine, lightEntity); scene.AddEntity(lightEntity); offscreenScene.AddEntity(lightEntity); };
static void Main(string[] args) { Material material = null; MaterialInstance materialInstance = null; Texture normal = null; Texture albedo = null; Texture ao = null; Texture metallic = null; Texture roughness = null; Mesh mesh = null; Matrix4x4 transform; var app = new Application( new WindowConfig() { Title = "suzanne", }, new ApplicationConfig() { IblDirectory = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), IBL_FOLDER) } ); app.Setup = (engine, view, scene) => { var tcm = engine.TransformManager; var rcm = engine.RenderableManager; var monkeyData = new MonkeyDataLoader(); // Create textures. The KTX bundles are freed by KtxUtility. var albedoBundle = new KtxBundle(monkeyData.LoadAlbedoS3tc()); var aoBundle = new KtxBundle(monkeyData.LoadAo()); var metallicBundle = new KtxBundle(monkeyData.LoadMetallic()); var roughnessBundle = new KtxBundle(monkeyData.LoadRougness()); albedo = KtxUtility.CreateTexture(engine, albedoBundle, true); ao = KtxUtility.CreateTexture(engine, aoBundle, false); metallic = KtxUtility.CreateTexture(engine, metallicBundle, false); roughness = KtxUtility.CreateTexture(engine, roughnessBundle, false); normal = LoadNormalMap(engine, monkeyData.LoadNormal()); var resourceData = new SampleDataLoader(); var sampler = new TextureSampler(SamplerMinFilter.LinearMipmapLinear, SamplerMagFilter.Linear); // Instantiate material. material = MaterialBuilder.Create() .WithPackage(resourceData.LoadTexturedLit()) .Build(engine); materialInstance = material.CreateInstance(); materialInstance.SetParameter("albedo", albedo, sampler); materialInstance.SetParameter("ao", ao, sampler); materialInstance.SetParameter("metallic", metallic, sampler); materialInstance.SetParameter("normal", normal, sampler); materialInstance.SetParameter("roughness", roughness, sampler); var indirectLight = app.Ibl.IndirectLight; indirectLight.Intensity = 100000; indirectLight.Rotation = Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, 0.5f); // Add geometry into the scene. mesh = MeshReader.LoadFromBuffer(engine, monkeyData.LoadSuzanne(), materialInstance); var ti = tcm.GetInstance(mesh.Renderable); transform = tcm.GetWorldTransform(ti) * Matrix4x4.CreateTranslation(0, 0, -4); rcm.SetCastShadows(rcm.GetInstance(mesh.Renderable), false); scene.AddEntity(mesh.Renderable); tcm.SetTransform(ti, transform); }; app.Cleanup = (engine, view, scene) => { engine.Destroy(materialInstance); engine.Destroy(mesh.Renderable); engine.Destroy(material); engine.Destroy(albedo); engine.Destroy(normal); engine.Destroy(roughness); engine.Destroy(metallic); engine.Destroy(ao); }; app.Run(); }