http://bugs.freedesktop.org/show_bug.cgi?id=20626
--- Comment #1 from raoxianhong <raoxianh...@163.net> 2009-03-12 07:49:39 PST
---
the code list here:
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,texid);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
glEnable(GL_TEXTURE_GEN_R);
glEnable(GL_TEXTURE_GEN_Q);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvf (GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_REPLACE);
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
p[0] = 0.25f;
p[1] = 0.0f;
p[2] = 0.0f;
p[3] = 0.25f;
glTexGenfv(GL_S, GL_OBJECT_PLANE, p);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
p[0] = 0.0f;
p[1] = 1.0f;
p[2] = 0.0f;
p[3] = 0.0f;
glTexGenfv(GL_T, GL_OBJECT_PLANE, p);
glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
p[0] = 0.0f;
p[1] = 0.0f;
p[2] = 0.0f;
p[3] = 1.0f;
glTexGenfv(GL_R, GL_OBJECT_PLANE, p);
glTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
p[0] = 0.0f;
p[1] = 0.0f;
p[2] = 0.0f;
p[3] = 1.0f;
glTexGenfv(GL_Q, GL_OBJECT_PLANE, p);
glBegin( GL_QUADS );
glVertex4f( 2.0f, 0.0f, 0.0f, 2.0f);
glVertex4f( 2.0f, 2.0f, 0.0f, 2.0f);
glVertex4f( 0.0f, 2.0f, 0.0f, 2.0f);
glVertex4f( 0.0f, 0.0f, 0.0f, 1.0f);
glEnd();
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