//?Two-Dimensional?Sierpinski?Gasket???????
//?Generated?using?randomly?selected?vertices?and?bisection

#include?“Angel.h“

const?int?NumPoints?=?5000;

//----------------------------------------------------------------------------

void
init（?void?）
{
????vec2?points[NumPoints];

????//?Specifiy?the?vertices?for?a?triangle
????vec2?vertices[3]?=?{
????????vec2（?-1.0?-1.0?）?vec2（?0.0?1.0?）?vec2（?1.0?-1.0?）
????};

????//?Select?an?arbitrary?initial?point?inside?of?the?triangle
????points[0]?=?vec2（?0.25?0.50?）;

????//?compute?and?store?N-1?new?points
????for?（?int?i?=?1;?i?????????int?j?=?rand（）?%?3;???//?pick?a?vertex?at?random

????????//?Compute?the?point?halfway?between?the?selected?vertex
????????//???and?the?previous?point
????????points[i]?=?（?points[i?-?1]?+?vertices[j]?）?/?2.0;
????}

????//?Create?a?vertex?array?object
????GLuint?vao;
????glGenVertexArrays（?1?&vao?）;
????glBindVertexArray（?vao?）;

????//?Create?and?initialize?a?buffer?object
????GLuint?buffer;
????glGenBuffers（?1?&buffer?）;
????glBindBuffer（?GL_ARRAY_BUFFER?buffer?）;
????glBufferData（?GL_ARRAY_BUFFER?sizeof（points）?points?GL_STATIC_DRAW?）;

????//?Load?shaders?and?use?the?resulting?shader?program
????GLuint?program?=?InitShader（?“vshader21.glsl“?“fshader21.glsl“?）;
????glUseProgram（?program?）;

????//?Initialize?the?vertex?position?attribute?from?the?vertex?shader
????GLuint?loc?=?glGetAttribLocation（?program?“vPosition“?）;
????glEnableVertexAttribArray（?loc?）;
????glVertexAttribPointer（?loc?2?GL_FLOAT?GL_FALSE?0
???????????????????????????BUFFER_OFFSET（0）?）;

????glClearColor（?1.0?1.0?1.0?1.0?）;?//?white?background
}

//----------------------------------------------------------------------------

void
display（?void?）
{
????glClear（?GL_COLOR_BUFFER_BIT?）;?????//?clear?the?window
????glDrawArrays（?GL_POINTS?0?NumPoints?）;????//?draw?the?points
????glFlush（）;
}

//----------------------------------------------------------------------------

void
keyboard（?unsigned?char?key?int?x?int?y?）
{
????switch?（?key?）?{
????case?033:
????????exit（?EXIT_SUCCESS?）;
????????break;
????}
}

//----------------------------------------------------------------------------

int
main（?int?argc?char?**argv?）
{
????glutInit（?&argc?argv?）;
????glutInitDisplayMode（?GLUT_RGBA?）;
????glutInitWindowSize（?512?512?）;

????//?If?you?are?using?freeglut?the?next?two?lines?will?check?if?
????//?the?code?is?truly?3.2.?Otherwise?comment?them?out
????
????glutInitContextVersion（?3?2?）;
????glutInitContextProfile（?GLUT_CORE_PROFILE?）;

????glutCreateWindow（?“Sierpinski?Gasket“?）;

????glewInit（）;

????init（）;

????glutDisplayFunc（?display?）;
????glutKeyboardFunc（?keyboard?）;

????glutMainLoop（）;
????return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????971??2011-04-13?08:54??begin.html
?????文件???????34381??2015-09-22?09:13??CHAPTER02_CODE.zip
?????目錄???????????0??2017-05-18?09:45??CHAPTER02_CODE\
?????文件????????2752??2010-11-16?06:20??CHAPTER02_CODE\example1.cpp
?????文件????????3112??2010-11-16?06:20??CHAPTER02_CODE\example2.cpp
?????文件????????2618??2010-11-16?06:20??CHAPTER02_CODE\example3.cpp
?????文件????????5188??2010-11-16?06:20??CHAPTER02_CODE\example4.cpp
?????文件????????3886??2010-11-16?06:20??CHAPTER02_CODE\example4b.cpp
?????文件????????8128??2011-03-20?20:53??CHAPTER02_CODE\example5.cpp
?????文件??????????90??2010-11-10?14:14??CHAPTER02_CODE\fshader21.glsl
?????文件??????????89??2010-11-10?14:14??CHAPTER02_CODE\fshader22.glsl
?????文件??????????86??2010-11-10?14:14??CHAPTER02_CODE\fshader23.glsl
?????文件??????????84??2010-11-10?14:14??CHAPTER02_CODE\fshader24.glsl
?????文件??????????84??2010-11-10?14:14??CHAPTER02_CODE\fshader24b.glsl
?????文件??????????90??2010-11-10?14:14??CHAPTER02_CODE\fshader25.glsl
?????目錄???????????0??2017-05-18?09:45??CHAPTER02_CODE\MAC_VERSIONS\
?????文件???????18732??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\example1
?????文件????????2528??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\example1.cpp
?????文件???????18844??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\example2
?????文件????????3020??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\example2.cpp
?????文件???????26320??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\example5
?????文件????????8036??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\example5.cpp
?????文件??????????64??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\fshader21.glsl
?????文件??????????63??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\fshader22.glsl
?????文件??????????63??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\fshader25.glsl
?????文件?????????197??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\Makefile
?????文件??????????72??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\vshader21.glsl
?????文件??????????72??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\vshader22.glsl
?????文件?????????101??2011-03-21?19:05??CHAPTER02_CODE\MAC_VERSIONS\vshader25.glsl
?????文件????????1020??2010-11-07?19:23??CHAPTER02_CODE\Makefile
?????文件?????????716??2011-03-01?17:15??CHAPTER02_CODE\READEME
............此處省略150個文件信息