文章 "DirectX 教程（第一部分）：绘制第一个三角形"

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新文章 DirectX 教程（第一部分）：绘制第一个三角形已发布：

这是一篇关于 DirectX 的介绍性文章，介绍了使用 API 进行操作的细节。 它应有助于理解其组件的初始化顺序。 本文包含一个如何编写 MQL5 脚本的示例，该脚本使用 DirectX 渲染一个三角形。

渲染图元是图形 API 的主要目的。 现代显卡适用于快速渲染大量三角形。 实际上，在计算机图形学的当前发展阶段，绘制 3D 对象最有效的方法是以多边形创建曲面。 曲面可由三个指定的点来定义。 3D 建模软件通常使用矩形，但图形卡仍会强制把多边形转换成三角形。

三角形网格

作者：Rorschach

[Tong Shi Yang]

MetaQuotes:

新文章 DirectX 教程（第一部分）：绘制第一个三角形已发布：

作者：Rorschach

[okwh]

not run ?

2023.05.05 15:03:12.927 DXTutorial (EURUSD,M1) Error: failed to create graphics context: 5151

[Rorschach]

okwh #:

not run ?

2023.05.05 15:03:12.927 DXTutorial (EURUSD,M1) Error: failed to create graphics context: 5151

.

[okwh]

Rorschach #:

.

Sir：

Your this DX.mq5 issame as DXTutorial.mq5, and received same error  :  Ошибка, не удалось создать графический контекст: 5151

I checked code and fond that  DXContextCreate function fail !   all samples at https://www.mql5.com/en/articles/7708  gave same error.

When I change code as

   Print("Before DXContextCreate");
   m_dx_context = DXContextCreate(m_width, m_height);
   if(m_dx_context == INVALID_HANDLE)
     {
      Print("Ошибка, не удалось создать графический контекст: ", GetLastError());
      return(false);
     }
   Print("After DXContextCreate");

received that  

2023.05.09 18:32:21.723 DX (EURUSD,H1) Before DXContextCreate

2023.05.09 18:32:21.727 DX (EURUSD,H1) Ошибка, не удалось создать графический контекст: 5151

I can not debug it , my OS is windows server 2019 and display adapter is   Nivida Quadro FX 1700, and DXdiag  told that it support DirectX12

请使用手机"扫一扫" x

[Rorschach]

okwh #:
Quadro FX 1700

The Quadro FX 1700 was an enthusiast-class professional graphics card by NVIDIA, launched on September 12th, 2007. Built on the 80 nm process, and based on the G84 graphics processor, in its G84-875-A2 variant, the card supports DirectX 11.1. Even though it supports DirectX 11, the feature level is only 10_0, which can be problematic with many DirectX 11 & DirectX 12 titles.

Try this.

[okwh]

Rorschach #:
problematic

Thanks!

yes, I find it,   FX 1700's  DirectX-feature-level only support to 10.0,  it is an old  diaplay adapter .

DXDiag:  DirectX Version: DirectX 12,    Chip type: Quadro FX 1700    Driver Date/Size: 2016-10-18 8:00:00, 17559200 bytes

              DDI Version: 11.1          Feature Levels: 10_0,9_3,9_2,9_1           Driver Model: WDDM 1.2

I will try it,   otherwise I maybe change my diaplay adapter at this server PC. 

I test the code at my notepad PC with windows 11 OS, all run OK.

[okwh]

Rorschach #:

The Quadro FX 1700 was an enthusiast-class professional graphics card by NVIDIA, launched on September 12th, 2007. Built on the 80 nm process, and based on the G84 graphics processor, in its G84-875-A2 variant, the card supports DirectX 11.1. Even though it supports DirectX 11, the feature level is only 10_0, which can be problematic with many DirectX 11 & DirectX 12 titles.

Try this.

Thanks again !

 When set   Force WARP   for MT, run OK !

[Rorschach]

okwh #:

Thanks again !

 When set   Force WARP   for MT, run OK !

My pleasure!