subtexture



unsigned char myImage[width*height];

glGenTexturesEXT ( 1, &myTex );
glBindTextureEXT ( myTex );
glTexImage2D (

GL_TEXTURE_2D,
0,
GL_RGB8_EXT,
256, 256,
0,
GL_RGB, GL_UNSIGNED_BYTE,
NULL );




glBindTextureEXT ( myTex )
glTexSubImage2DEXT (

GL_TEXTURE_2D,
0,
xoffset, yoffset,
width, height,
GL_RGB, GL_UNSIGNED_BYTE,
myImage );