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option to test mipmapping

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This commit is contained in:
Brian 2007-02-24 18:20:35 -07:00
parent fbc4929185
commit a127537efb
1 changed files with 19 additions and 4 deletions
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23
progs/demos/cubemap.c
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@ -47,6 +47,7 @@ static GLfloat Xrot = 0, Yrot = 0;
static GLfloat EyeDist = 10;
static GLboolean use_vertex_arrays = GL_FALSE;
static GLboolean anim = GL_TRUE;
static GLboolean Mipmap = GL_FALSE;
#define eps1 0.99
#define br 20.0 /* box radius */
@ -335,8 +336,14 @@ static void init_checkers( void )
}
}
glTexImage2D(targets[f], 0, GL_RGB, CUBE_TEX_SIZE, CUBE_TEX_SIZE, 0,
GL_RGB, GL_UNSIGNED_BYTE, image);
if (Mipmap) {
gluBuild2DMipmaps(targets[f], GL_RGB, CUBE_TEX_SIZE, CUBE_TEX_SIZE,
GL_RGB, GL_UNSIGNED_BYTE, image);
}
else {
glTexImage2D(targets[f], 0, GL_RGB, CUBE_TEX_SIZE, CUBE_TEX_SIZE, 0,
GL_RGB, GL_UNSIGNED_BYTE, image);
}
}
}
@ -427,8 +434,16 @@ static void init( GLboolean useImageFiles )
filter = GL_NEAREST;
}
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, filter);
if (Mipmap) {
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB,
GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB,
GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else {
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, filter);
}
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);