Написал программу на C# (квадрат из 8 точек, повороты, масштабирование, сброс). Теперь
нужно переделать её под DirectX, о котором я вообще ничего не знаю... Я даже не знаю
как его подключать, могли бы вы посоветовать очень простую лекцию для выполнения этого
простого задания...
Ответы
Ответ 1
Подключить DX функции для создания графики можно установив пакет DirectX SDK который
можно скачать с оффсайта Microsoft. А переделать под него - означает использовать в
качестве функции рисования API DX'а(DirectDraw), самый банальный способ на мой взгляд
и простой это написать ту же программу юзая Microsoft Visual C++, там вывод графики
осуществляется по средствам DirectDraw.
Это довольно обширная тема чтобы описать все этапы тут, ведь нам потребуется написать
процедуру вызова окна, инициализации палитры и много чего другого, поэтому поделюсь
ссылкой на ресурс который помог мне в этом разобраться.
http://www.helloworld.ru/texts/comp/games/directx/ddraw/directx.htm
Ответ 2
раз на С# то может надо переделать на Direct2D, а не DirectX?
вот библиотека
а если все таки на DirectX, то есть смысл скачать себе XNA Game Studio, там все можно
сделать в 10 строчек
Ответ 3
На С# есть замечательная библиотека SharpDX
Основной код(Код шейдера ниже)
// Copyright (c) 2010-2013 SharpDX - Alexandre Mutel
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Diagnostics;
using System.Windows.Forms;
using SharpDX;
using SharpDX.D3DCompiler;
using SharpDX.Direct3D;
using SharpDX.Direct3D11;
using SharpDX.DXGI;
using SharpDX.Windows;
using Buffer = SharpDX.Direct3D11.Buffer;
using Device = SharpDX.Direct3D11.Device;
namespace MiniCube
{
///
/// SharpDX MiniCube Direct3D 11 Sample
///
internal static class Program
{
// [STAThread]
private static void Main()
{
var form = new RenderForm("SharpDX - MiniCube Direct3D11 Sample");
// SwapChain description
var desc = new SwapChainDescription()
{
BufferCount = 1,
ModeDescription =
new ModeDescription(form.ClientSize.Width, form.ClientSize.Height,
new Rational(60, 1), Format.R8G8B8A8_UNorm),
IsWindowed = true,
OutputHandle = form.Handle,
SampleDescription = new SampleDescription(1, 0),
SwapEffect = SwapEffect.Discard,
Usage = Usage.RenderTargetOutput
};
// Used for debugging dispose object references
// Configuration.EnableObjectTracking = true;
// Disable throws on shader compilation errors
//Configuration.ThrowOnShaderCompileError = false;
// Create Device and SwapChain
Device device;
SwapChain swapChain;
Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.None,
desc, out device, out swapChain);
var context = device.ImmediateContext;
// Ignore all windows events
var factory = swapChain.GetParent();
factory.MakeWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAll);
// Compile Vertex and Pixel shaders
var vertexShaderByteCode = ShaderBytecode.CompileFromFile("MiniCube.fx",
"VS", "vs_4_0");
var vertexShader = new VertexShader(device, vertexShaderByteCode);
var pixelShaderByteCode = ShaderBytecode.CompileFromFile("MiniCube.fx",
"PS", "ps_4_0");
var pixelShader = new PixelShader(device, pixelShaderByteCode);
var signature = ShaderSignature.GetInputSignature(vertexShaderByteCode);
// Layout from VertexShader input signature
var layout = new InputLayout(device, signature, new[]
{
new InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
new InputElement("COLOR", 0, Format.R32G32B32A32_Float, 16, 0)
});
// Instantiate Vertex buiffer from vertex data
var vertices = Buffer.Create(device, BindFlags.VertexBuffer, new[]
{
new Vector4(-1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 0.0f, 1.0f), // Front
new Vector4(-1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 0.0f, 1.0f),
new Vector4( 1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 0.0f, 1.0f),
new Vector4(-1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 0.0f, 1.0f),
new Vector4( 1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 0.0f, 1.0f),
new Vector4( 1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 0.0f, 1.0f),
new Vector4(-1.0f, -1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 0.0f, 1.0f), // BACK
new Vector4( 1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-1.0f, -1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 0.0f, 1.0f),
new Vector4( 1.0f, -1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 0.0f, 1.0f),
new Vector4( 1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(0.0f, 0.0f, 1.0f, 1.0f), // Top
new Vector4(-1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 0.0f, 1.0f, 1.0f),
new Vector4( 1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 0.0f, 1.0f, 1.0f),
new Vector4(-1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(0.0f, 0.0f, 1.0f, 1.0f),
new Vector4( 1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 0.0f, 1.0f, 1.0f),
new Vector4( 1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(0.0f, 0.0f, 1.0f, 1.0f),
new Vector4(-1.0f,-1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 1.0f, 0.0f, 1.0f), // Bottom
new Vector4( 1.0f,-1.0f, 1.0f, 1.0f), new
Vector4(1.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-1.0f,-1.0f, 1.0f, 1.0f), new
Vector4(1.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-1.0f,-1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 1.0f, 0.0f, 1.0f),
new Vector4( 1.0f,-1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 1.0f, 0.0f, 1.0f),
new Vector4( 1.0f,-1.0f, 1.0f, 1.0f), new
Vector4(1.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 1.0f, 1.0f), // Left
new Vector4(-1.0f, -1.0f, 1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 1.0f, 1.0f),
new Vector4(-1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 1.0f, 1.0f),
new Vector4(-1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 1.0f, 1.0f),
new Vector4(-1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 1.0f, 1.0f),
new Vector4(-1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(1.0f, 0.0f, 1.0f, 1.0f),
new Vector4( 1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 1.0f, 1.0f), // Right
new Vector4( 1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 1.0f, 1.0f),
new Vector4( 1.0f, -1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 1.0f, 1.0f),
new Vector4( 1.0f, -1.0f, -1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 1.0f, 1.0f),
new Vector4( 1.0f, 1.0f, -1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 1.0f, 1.0f),
new Vector4( 1.0f, 1.0f, 1.0f, 1.0f), new
Vector4(0.0f, 1.0f, 1.0f, 1.0f),
});
// Create Constant Buffer
var contantBuffer = new Buffer(device, Utilities.SizeOf(), ResourceUsage.Default,
BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
// Prepare All the stages
context.InputAssembler.InputLayout = layout;
context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
context.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(vertices,
Utilities.SizeOf() * 2, 0));
context.VertexShader.SetConstantBuffer(0, contantBuffer);
context.VertexShader.Set(vertexShader);
context.PixelShader.Set(pixelShader);
// Prepare matrices
var view = Matrix.LookAtLH(new Vector3(0, 0, -5), new Vector3(0, 0, 0),
Vector3.UnitY);
Matrix proj = Matrix.Identity;
// Use clock
var clock = new Stopwatch();
clock.Start();
// Declare texture for rendering
bool userResized = true;
Texture2D backBuffer = null;
RenderTargetView renderView = null;
Texture2D depthBuffer = null;
DepthStencilView depthView = null;
// Setup handler on resize form
form.UserResized += (sender, args) => userResized = true;
// Setup full screen mode change F5 (Full) F4 (Window)
form.KeyUp += (sender, args) =>
{
if (args.KeyCode == Keys.F5)
swapChain.SetFullscreenState(true, null);
else if (args.KeyCode == Keys.F4)
swapChain.SetFullscreenState(false, null);
else if (args.KeyCode == Keys.Escape)
form.Close();
};
// Main loop
RenderLoop.Run(form, () =>
{
// If Form resized
if (userResized)
{
// Dispose all previous allocated resources
Utilities.Dispose(ref backBuffer);
Utilities.Dispose(ref renderView);
Utilities.Dispose(ref depthBuffer);
Utilities.Dispose(ref depthView);
// Resize the backbuffer
swapChain.ResizeBuffers(desc.BufferCount, form.ClientSize.Width,
form.ClientSize.Height, Format.Unknown, SwapChainFlags.None);
// Get the backbuffer from the swapchain
backBuffer = Texture2D.FromSwapChain(swapChain, 0);
// Renderview on the backbuffer
renderView = new RenderTargetView(device, backBuffer);
// Create the depth buffer
depthBuffer = new Texture2D(device, new Texture2DDescription()
{
Format = Format.D32_Float_S8X24_UInt,
ArraySize = 1,
MipLevels = 1,
Width = form.ClientSize.Width,
Height = form.ClientSize.Height,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None
});
// Create the depth buffer view
depthView = new DepthStencilView(device, depthBuffer);
// Setup targets and viewport for rendering
context.Rasterizer.SetViewport(new Viewport(0, 0, form.ClientSize.Width,
form.ClientSize.Height, 0.0f, 1.0f));
context.OutputMerger.SetTargets(depthView, renderView);
// Setup new projection matrix with correct aspect ratio
proj = Matrix.PerspectiveFovLH((float)Math.PI / 4.0f, form.ClientSize.Width
/ (float)form.ClientSize.Height, 0.1f, 100.0f);
// We are done resizing
userResized = false;
}
var time = clock.ElapsedMilliseconds / 1000.0f;
var viewProj = Matrix.Multiply(view, proj);
// Clear views
context.ClearDepthStencilView(depthView, DepthStencilClearFlags.Depth,
1.0f, 0);
context.ClearRenderTargetView(renderView, Color.Black);
// Update WorldViewProj Matrix
var worldViewProj = Matrix.RotationX(time) * Matrix.RotationY(time
* 2) * Matrix.RotationZ(time * .7f) * viewProj;
worldViewProj.Transpose();
context.UpdateSubresource(ref worldViewProj, contantBuffer);
// Draw the cube
context.Draw(36, 0);
// Present!
swapChain.Present(0, PresentFlags.None);
});
// Release all resources
signature.Dispose();
vertexShaderByteCode.Dispose();
vertexShader.Dispose();
pixelShaderByteCode.Dispose();
pixelShader.Dispose();
vertices.Dispose();
layout.Dispose();
contantBuffer.Dispose();
depthBuffer.Dispose();
depthView.Dispose();
renderView.Dispose();
backBuffer.Dispose();
context.ClearState();
context.Flush();
device.Dispose();
context.Dispose();
swapChain.Dispose();
factory.Dispose();
}
}
}
Код шейдера
// Copyright (c) 2010-2013 SharpDX - Alexandre Mutel
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
struct VS_IN
{
float4 pos : POSITION;
float4 col : COLOR;
};
struct PS_IN
{
float4 pos : SV_POSITION;
float4 col : COLOR;
};
float4x4 worldViewProj;
PS_IN VS( VS_IN input )
{
PS_IN output = (PS_IN)0;
output.pos = mul(input.pos, worldViewProj);
output.col = input.col;
return output;
}
float4 PS( PS_IN input ) : SV_Target
{
return input.col;
}
SharpDX MiniCube Direct3D 11 Sample (лицензия MIT)
