Note: This series blog was translated from Nathan Vaughn's Shaders Language Tutorial and has been authorized by the author. If reprinted or reposted, please be sure to mark the original link and description in the key position of the article after ob
Note: This series blog was translated from Nathan Vaughn's Shaders Language Tutorial and has been authorized by the author. If reprinted or reposted, please be sure to mark the original link and description in the key position of the article after ob
如果应用定义的顶点不在同一个平面上,并且使用三角形把合适的顶点连接起来,就可以绘制出3D图形了. 使用OpenGL ES绘制3D图形的方法与绘制2D图形的步骤大致相同,只是绘制3D图形需要定义更多的顶点数据,而且3D图形需要绘制更多的三角形. 使用glDrawArrays(int mode , int first , int count)方法绘制3D,还需要使用glDrawElements(int mode , int count , int type , Buffer
在 HTML5 中,使用 Canvas API 绘制图形的知识,可以对绘制图形进行处理,包含使用 Canvas API 绘制渐变图形,使用 Canvas API 的坐标轴变换处理功能绘制变形图形.其中,左上方的点,为坐标轴原点(0,0). 1.绘制渐变图形 <!DOCTYPE html> <html> <head> <title></title> <script> function draw(id){ var canvas = doc