将图像绘制为三角形

问题描述

大家好，

背景::
我目前正在使用c#.Net创建3D建模引擎，而未使用任何第三方库(例如DirectX或OpenGl).到目前为止，我已经构建了一个引擎，该引擎支持创建新对象，灯光，运动和物理(考虑到限制:p，到目前为止，我认为这是非常令人印象深刻的).但是我碰到了一点迷路.我无法将图像映射到三角形.

问题::
我的引擎从数组中存储的3d三角形生成了3个屏幕点.我可以简单地在两点之间画线以生成网格，但是我希望能够将给定的纹理扭曲到该三角形的边界.给定的纹理由图像和它将作为图像源的不同三角形的3个点组成.我该怎么办?

感谢所有帮助我解决挑战的人:) :)

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Hi all,

Background::
I am currently in the process of creating a 3D modelling engine using c#.Net without the use of any 3rd party libraries like DirectX or OpenGl. So far I have built an engine that supports the creation of new objects, lights, movement and physics (which I think is pretty impressive so far considering the restrictions :p). However I have hit a bit of a stumble. I cannot map an Image to a triangle.

Question::
I have 3 screen points generated by my engine from a 3d triangle stored in an array. I can simply draw lines between the points to generate a mesh but I would like to be able to put a given texture warped to the bounds of this triangle. The given texture is made up of an Image and the 3 points of a different triangle it will source of the image. How can I accomplish this?

Thank you to all who help me solve my challenge :) :)

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Graphics Drawer;  //Graphics Object
Image TextureImage;  //Image to draw source
Point[] PointsOnImageToSource;  //triangle on source image we want drawn
Point[] PointsOnScreenToDraw;   //Triangle in 2D space where texture needs to be drawn

//TODO - Draw triangle to screen

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