Thanks Robert. I am currently using clutter-0.8. Will definitely try this when I migrate to clutter-1.x
Cheers, Rajith 2010/1/9 Robert Bragg <[email protected]> > Excerpts from Rajith Kalluraya's message of Thu Jan 07 19:48:36 +0000 2010: > > >Thanks Emmanuele. > > > >I tried using cairo rectangles. Antilaliasing within the area contained > by > >my drawing area of the actor is taken care of. > > > >But aliasing along the edges of my actor is still present. This happens > with > >normal Clutter Textures tilted in one of the axes too. > > Hi Rajith, > > Eventually we will expose support for multisampling (for GPUs that > support it) via the CoglFramebuffer API and this may improve the jaggies > you are seeing. Depending on how much of a performance hit you are able > to take then you can try manual supersampling to reduce aliasing by > basically rendering your scene at 4x the resolution off your screen into > an FBO and then rely on texture sampling to scale it down. > > E.g. here is an outline for how this can be achieved if running with git > master. (I'm not sure I'd try this with clutter 1.0 since the > cogl framebuffer code is was rather broken) > > /* Currently Cogl only support offscreen rendering to a texture... */ > texture = cogl_texture_new_with_size (width * 2, height * 2, > COGL_TEXTURE_NO_SLICING, > COGL_PIXEL_FORMAT_ANY); > offscreen = cogl_offscreen_new_to_texture (texture); > cogl_push_framebuffer (offscreen); > > <draw stuff here> > > cogl_pop_framebuffer (); > cogl_handle_unref (offscreen); > > material = cogl_material_new (); > cogl_material_set_layer (material, 0, texture); > cogl_material_set_layer_filters > (material, 0, > COGL_MATERIAL_FILTER_LINEAR_MIPMAP_LINEAR, > COGL_MATERIAL_FILTER_LINEAR_MIPMAP_LINEAR); > cogl_set_source (material); > cogl_rectangle (0, 0, width, height); > > cogl_handle_unref (texture); > cogl_handle_unref (material); > > kind regards, > - Robert > -- > Robert Bragg, Intel Open Source Technology Center > -- Rajith --------------------------------- www.pixelfactory.co.in
