GL_QUADS plays jerky in 2d...
Author
for rendering text i wanna use a GL_QUAD with the right texture. the texture is ok and correctly loaded (it renders in 3d on a quad without problem). now if i use the same quad in 2d mode suddenly the quad plays dull and jerky. it renders one triangle correct with texture and the other triangle is a complete mess.
anybody knows what stupid glEnable/Disable the GL_QUAD relies on? i''ve had no chance getting this to run so far and it drives me nuts.
entering 2d mode makes this with me:
OGL_CHECK( glDisable(GL_TEXTURE_2D) );
OGL_CHECK( glDisable(GL_DEPTH_TEST) );
OGL_CHECK( glDisable(GL_CULL_FACE) );
OGL_CHECK( glDisable(GL_LIGHTING) );
OGL_CHECK( glDisable(GL_BLEND) );
OGL_CHECK( glEnable(GL_LINE_SMOOTH) );
OGL_CHECK( glEnable(GL_POINT_SMOOTH) );
OGL_CHECK( glEnable(GL_POLYGON_SMOOTH) );
Author
yeah... i found out myself last night. i somehow managed to mix up the order of the glVertex and glTexCoord commands. st00pid myself. it works now with rendering the quad.
only problem the aliasing is awefull. i tried to read the manual but i somehow am not sure if i get it right.
if I do glEnable(GL_POLYGON_SMOOTH), does this now disable or enable anti-aliasing of the polygon? i think glEnable disables anti-aliasing but i still get completly vashed letters on the screen making it damn hard to read the text.
only problem the aliasing is awefull. i tried to read the manual but i somehow am not sure if i get it right.
if I do glEnable(GL_POLYGON_SMOOTH), does this now disable or enable anti-aliasing of the polygon? i think glEnable disables anti-aliasing but i still get completly vashed letters on the screen making it damn hard to read the text.
GL_POLYGON_SMOOTH smoothes the edges of the polygons, which if I understand isn''t what you want.
I think you want to use glTexParameter to set the texture min/mag filtering. You probably want GL_LINEAR if you''re drawing the text bigger or smaller than the actual size or GL_NEAREST if you''re drawing it exactly the right size and don''t want it to seem blurred.
eg:
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
I think you want to use glTexParameter to set the texture min/mag filtering. You probably want GL_LINEAR if you''re drawing the text bigger or smaller than the actual size or GL_NEAREST if you''re drawing it exactly the right size and don''t want it to seem blurred.
eg:
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
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