新建文本文档.txt

1设置当前颜色 这是一个家族性质的函数集合

glColor

设置当前颜色
这是一个家族性质的函数集合，并没有glColor()这个函数。其包含的函数如下：

void glColor3b(GLbyte red , GLbyte green , GLbyte blue)
void glColor3d(GLdouble red , GLdouble green , GLdouble blue)
void glColor3f(GLfloat red , GLfloat green , GLfloat blue)
void glColor3i(GLint red , GLint green , GLint blue)
void glColor3s(GLshort red , GLshort green , GLshort blue)
void glColor3ub(GLubyte red , GLubyte green , GLubyte blue)
void glColor3ui(GLuint red , GLuint green , GLuint blue)
void glColor3us(GLushort red , GLushort green , GLushort blue)

void glColor4b(GLbyte red , GLbyte green , GLbyte blue , GLbyte alpha)
void glColor4d(GLdouble red , GLdouble green , GLdouble blue , GLdouble alpha)
void glColor4f(GLfloat red , GLfloat green , GLfloat blue , GLfloat alpha)
void glColor4i(GLint red , GLint green , GLint blue , GLint alpha)
void glColor4s(GLshort red , GLshort green , GLshort blue , GLshort alpha)
void glColor4ub(GLubyte red , GLubyte green , GLubyte blue , GLubyte alpha)
void glColor4ui(GLuint red , GLuint green , GLuint blue , GLuint alpha)
void glColor4us(GLushort red , GLushort green , GLushort blue , GLbyte alpha)

参数：red , green , blue 指定当前新的红、绿、蓝的颜色值
alpha 透明度，指明当前新的 alpha 颜色值 ，只有在 glColor4 函数中带4个变量时才会指定此参数。