public static void Main(string[] args)
{
WindowCreateInfo windowCI = new WindowCreateInfo()
{
X = 100, Y = 100,
WindowWidth = 960, WindowHeight = 540,
WindowTitle = "Veldrid TinyDemo",
};
RenderContextCreateInfo contextCI = new RenderContextCreateInfo();
VeldridStartup.CreateWindowAndRenderContext(ref windowCI, ref contextCI, out var window, out RenderContext rc);
VertexBuffer vb = rc.ResourceFactory.CreateVertexBuffer(Cube.Vertices, new VertexDescriptor(VertexPositionColor.SizeInBytes, 2), false);
IndexBuffer ib = rc.ResourceFactory.CreateIndexBuffer(Cube.Indices, false);
string folder = rc.BackendType == GraphicsBackend.Direct3D11 ? "HLSL" : "GLSL";
string extension = rc.BackendType == GraphicsBackend.Direct3D11 ? "hlsl" : "glsl";
VertexInputLayout inputLayout = rc.ResourceFactory.CreateInputLayout(new VertexInputDescription[]
{
new VertexInputDescription(
new VertexInputElement("Position", VertexSemanticType.Position, VertexElementFormat.Float3),
new VertexInputElement("Color", VertexSemanticType.Color, VertexElementFormat.Float4))
});
string vsPath = Path.Combine(AppContext.BaseDirectory, folder, $"vertex.{extension}");
string fsPath = Path.Combine(AppContext.BaseDirectory, folder, $"fragment.{extension}");
Shader vs = rc.ResourceFactory.CreateShader(ShaderStages.Vertex, File.ReadAllText(vsPath));
Shader fs = rc.ResourceFactory.CreateShader(ShaderStages.Fragment, File.ReadAllText(fsPath));
ShaderSet shaderSet = rc.ResourceFactory.CreateShaderSet(inputLayout, vs, fs);
ShaderResourceBindingSlots bindingSlots = rc.ResourceFactory.CreateShaderResourceBindingSlots(
shaderSet,
new ShaderResourceDescription("ViewProjectionMatrix", ShaderConstantType.Matrix4x4));
ConstantBuffer viewProjectionBuffer = rc.ResourceFactory.CreateConstantBuffer(ShaderConstantType.Matrix4x4);
while (window.Exists)
{
InputSnapshot snapshot = window.PumpEvents();
rc.ClearBuffer();
rc.SetViewport(0, 0, window.Width, window.Height);
float timeFactor = Environment.TickCount / 1000f;
viewProjectionBuffer.SetData(
Matrix4x4.CreateLookAt(
new Vector3(2 * (float)Math.Sin(timeFactor), (float)Math.Sin(timeFactor), 2 * (float)Math.Cos(timeFactor)),
Vector3.Zero,
Vector3.UnitY)
* Matrix4x4.CreatePerspectiveFieldOfView(1.05f, (float)window.Width / window.Height, .5f, 10f));
rc.SetVertexBuffer(0, vb);
rc.IndexBuffer = ib;
rc.ShaderSet = shaderSet;
rc.ShaderResourceBindingSlots = bindingSlots;
rc.SetConstantBuffer(0, viewProjectionBuffer);
rc.DrawIndexedPrimitives(Cube.Indices.Length);
rc.SwapBuffers();
}
}
private void ChangeRenderContext(GraphicsBackend backend)
{
_sc.DestroyDeviceObjects();
_scene.DestroyAllDeviceObjects();
CommonMaterials.DestroyAllDeviceObjects();
_rc.Dispose();
if (_recreateWindow)
{
WindowCreateInfo windowCI = new WindowCreateInfo
{
X = _window.X,
Y = _window.Y,
WindowWidth = _window.Width,
WindowHeight = _window.Height,
WindowInitialState = _window.WindowState,
WindowTitle = "Veldrid NeoDemo"
};
_window.Close();
_window = VeldridStartup.CreateWindow(ref windowCI);
_window.Resized += () => _windowResized = true;
}
RenderContextCreateInfo rcCI = new RenderContextCreateInfo
{
Backend = backend
};
_rc = VeldridStartup.CreateRenderContext(ref rcCI, _window);
_sc.CreateDeviceObjects(_rc);
_scene.CreateAllDeviceObjects(_rc);
CommonMaterials.CreateAllDeviceObjects(_rc);
}
public NeoDemo()
{
WindowCreateInfo windowCI = new WindowCreateInfo
{
X = 50,
Y = 50,
WindowWidth = 960,
WindowHeight = 540,
WindowInitialState = WindowState.Normal,
WindowTitle = "Veldrid NeoDemo"
};
RenderContextCreateInfo rcCI = new RenderContextCreateInfo();
rcCI.DebugContext = RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
VeldridStartup.CreateWindowAndRenderContext(ref windowCI, ref rcCI, out _window, out _rc);
_window.Resized += () => _windowResized = true;
_sc.CreateDeviceObjects(_rc);
CommonMaterials.CreateAllDeviceObjects(_rc);
_scene = new Scene(_window.Width, _window.Height);
_sc.SetCurrentScene(_scene);
_igRenderable = new ImGuiRenderable(_window.Width, _window.Height);
_resizeHandled += (w, h) => _igRenderable.WindowResized(w, h);
_igRenderable.CreateDeviceObjects(_rc);
_scene.AddRenderable(_igRenderable);
_scene.AddUpdateable(_igRenderable);
InfiniteGrid grid = new InfiniteGrid();
grid.CreateDeviceObjects(_rc);
_scene.AddRenderable(grid);
Skybox skybox = Skybox.LoadDefaultSkybox();
skybox.CreateDeviceObjects(_rc);
_scene.AddRenderable(skybox);
AddTexturedMesh(
"Textures/spnza_bricks_a_diff.png",
PrimitiveShapes.Box(10, 10, 10, 10),
new Vector3(0, 0, -5),
Quaternion.Identity,
Vector3.One);
AddTexturedMesh(
"Textures/spnza_bricks_a_diff.png",
PrimitiveShapes.Box(5, 5, 5, 5f),
new Vector3(-3, -9, 2),
Quaternion.Identity,
Vector3.One);
AddTexturedMesh(
"Textures/spnza_bricks_a_diff.png",
PrimitiveShapes.Box(27, 3, 27, 27f),
new Vector3(-5, -16, 5),
Quaternion.Identity,
Vector3.One);
AddTexturedMesh(
"Textures/spnza_bricks_a_diff.png",
PrimitiveShapes.Plane(100, 100, 5),
new Vector3(0, -20, 0),
Quaternion.Identity,
Vector3.One);
ShadowmapDrawer texDrawer = new ShadowmapDrawer(_window, () => _sc.NearShadowMapBinding);
texDrawer.CreateDeviceObjects(_rc);
texDrawer.Position = new Vector2(10, 25);
_scene.AddRenderable(texDrawer);
texDrawer = new ShadowmapDrawer(_window, () => _sc.MidShadowMapBinding);
texDrawer.CreateDeviceObjects(_rc);
texDrawer.Position = new Vector2(20 + texDrawer.Size.X, 25);
_scene.AddRenderable(texDrawer);
texDrawer = new ShadowmapDrawer(_window, () => _sc.FarShadowMapBinding);
texDrawer.CreateDeviceObjects(_rc);
texDrawer.Position = new Vector2(30 + (texDrawer.Size.X * 2), 25);
_scene.AddRenderable(texDrawer);
}
