//
//?Display?a?color?cube
//
//?Colors?are?assigned?to?each?vertex?and?then?the?rasterizer?interpolates
//???those?colors?across?the?triangles.??We?us?an?orthographic?projection
//???as?the?default?projetion.

#include?“Angel.h“

typedef?Angel::vec4??color4;
typedef?Angel::vec4??point4;

const?int?NumVertices?=?36;?//（6?faces）（2?triangles/face）（3?vertices/triangle）

point4?points[NumVertices];
color4?colors[NumVertices];

//?Vertices?of?a?unit?cube?centered?at?origin?sides?aligned?with?axes
point4?vertices[8]?=?{
????point4（?-0.5?-0.5??0.5?1.0?）
????point4（?-0.5??0.5??0.5?1.0?）
????point4（??0.5??0.5??0.5?1.0?）
????point4（??0.5?-0.5??0.5?1.0?）
????point4（?-0.5?-0.5?-0.5?1.0?）
????point4（?-0.5??0.5?-0.5?1.0?）
????point4（??0.5??0.5?-0.5?1.0?）
????point4（??0.5?-0.5?-0.5?1.0?）
};

//?RGBA?olors
color4?vertex_colors[8]?=?{
????color4（?0.0?0.0?0.0?1.0?）??//?black
????color4（?1.0?0.0?0.0?1.0?）??//?red
????color4（?1.0?1.0?0.0?1.0?）??//?yellow
????color4（?0.0?1.0?0.0?1.0?）??//?green
????color4（?0.0?0.0?1.0?1.0?）??//?blue
????color4（?1.0?0.0?1.0?1.0?）??//?magenta
????color4（?1.0?1.0?1.0?1.0?）??//?white
????color4（?0.0?1.0?1.0?1.0?）???//?cyan
};

//?Array?of?rotation?angles?（in?degrees）?for?each?coordinate?axis
enum?{?Xaxis?=?0?Yaxis?=?1?Zaxis?=?2?NumAxes?=?3?};
int??????Axis?=?Xaxis;
GLfloat??theta[NumAxes]?=?{?0.0?0.0?0.0?};

GLint?matrix_loc;??//?The?location?of?the?“rotation“?shader?uniform?variable


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

//?quad?generates?two?triangles?for?each?face?and?assigns?colors
//????to?the?vertices
int?Index?=?0;
void
quad（?int?a?int?b?int?c?int?d?）
{
????colors[Index]?=?vertex_colors[a];?points[Index]?=?vertices[a];?Index++;
????colors[Index]?=?vertex_colors[b];?points[Index]?=?vertices[b];?Index++;
????colors[Index]?=?vertex_colors[c];?points[Index]?=?vertices[c];?Index++;
????colors[Index]?=?vertex_colors[a];?points[Index]?=?vertices[a];?Index++;
????colors[Index]?=?vertex_colors[c];?points[Index]?=?vertices[c];?Index++;
????colors[Index]?=?vertex_colors[d];?points[Index]?=?vertices[d];?Index++;
}

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

//?generate?12?triangles:?36?vertices?and?36?colors
void
colorcube（）
{
????quad（?1?0?3?2?）;
????quad（?2?3?7?6?）;
????quad（?3?0?4?7?）;
????quad（?6?5?1?2?）;
????quad（?4?5?6?7?）;
????quad（?5?4?0?1?）;
}

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

//?OpenGL?initialization
void
init（）
{
????colorcube（）;

????//?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（

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2079??2013-04-17?11:23??hello\hello.cpp

?????文件?????429568??2013-04-17?18:00??hello\hello.exe

?????文件?????????90??2013-03-25?00:15??hello\hello.fs

?????文件???????9265??2013-04-07?17:51??hello\hello.vcxproj

?????文件????????143??2013-03-24?21:12??hello\hello.vcxproj.user

?????文件?????????79??2010-11-07?19:23??hello\hello.vs

?????文件???????3400??2013-04-17?16:46??koch\koch.cpp

?????文件?????438784??2013-04-17?18:00??koch\koch.exe

?????文件?????????90??2013-04-07?16:57??koch\koch.fs

?????文件???????9258??2013-04-07?16:59??koch\koch.vcxproj

?????文件????????143??2013-03-24?23:39??koch\koch.vcxproj.user

?????文件?????????79??2010-11-07?19:23??koch\koch.vs

?????文件?????????94??2013-04-07?17:51??single_double\Debug\single_double.log

?????文件???????2643??2013-03-31?23:01??single_double\single_double.cpp

?????文件?????218112??2013-04-17?18:00??single_double\single_double.exe

?????文件???????9150??2013-04-07?17:51??single_double\single_double.vcxproj

?????文件????????143??2013-03-31?23:00??single_double\single_double.vcxproj.user

?????文件?????????94??2013-04-07?17:51??single_double\Template\single_double.log

?????文件????????178??2010-03-16?10:59??clean.cmd

?????文件???????5480??2013-04-14?22:06??my_example.sln

?????文件???????5800??2013-04-17?17:58??colorcube\colorcube.cpp

?????文件?????433152??2013-04-17?18:00??colorcube\colorcube.exe

?????文件?????????84??2010-11-10?14:14??colorcube\colorcube.fs

?????文件???????9293??2013-04-14?21:54??colorcube\colorcube.vcxproj

?????文件????????143??2013-04-14?21:55??colorcube\colorcube.vcxproj.user

?????文件????????182??2013-04-17?17:46??colorcube\colorcube.vs

?????文件???????2176??2013-03-24?19:18??common\include\Angel.h

?????文件???????1290??2010-11-07?19:23??common\include\CheckError.h

?????文件????????681??2003-10-21?19:41??common\include\GL\freeglut.h

?????文件???????8797??2011-09-05?03:38??common\include\GL\freeglut_ext.h

............此處省略73個文件信息