[jitter] Re: Re: erase_color with half transparancy works on one videocard, not on another

Hi Wesley, 

Done some more research, it has something to do with the fsaa flag. When I enable it on the Radeon X1900, the erase_color trails disappear.


Here's a patch:

#P newex 45 58 48 196617 loadbang;
#P toggle 45 223 15 0;
#P newex 45 241 67 196617 prepend fsaa;
#P newex 272 164 104 196617 pak position 0. 0. -2.;
#P message 303 127 67 196617 -1. \, 1. 1000;
#P newex 303 145 40 196617 line 0.;
#P newex 45 261 227 196617 jit.window test @depthbuffer 1 @doublebuffer 1;
#P newex 45 160 50 196617 t b erase;
#P toggle 45 121 15 0;
#P newex 45 140 57 196617 qmetro 30;
#P newex 272 183 161 196617 jit.gl.gridshape test @shape plane;
#P newex 45 185 205 196617 jit.gl.render test @erase_color 0. 0. 0. 0.2;
#P comment 65 223 219 196617 enable fsaa and erase_color trails disappear;
#P connect 7 0 9 1;
#P connect 8 0 7 0;
#P connect 12 0 4 0;
#P connect 12 0 8 0;
#P connect 7 1 8 0;
#P connect 9 0 2 0;
#P connect 10 0 6 0;
#P connect 11 0 10 0;
#P connect 5 1 1 0;
#P connect 5 0 1 0;
#P connect 3 0 5 0;
#P connect 4 0 3 0;

Thanks,
Mattijs

Quote: Mattijs wrote on Thu, 27 September 2007 22:21
----------------------------------------------------
> Thanks for confirming Evan.
> 
> Hi Wesley, I have the Radeon X1900, not X1600, but it sounds like they behave the same way. 
> 
> I can send you a patch tomorrow if you like. But it should be noticable by simply rendering one plane and moving it around with a handle while erase_color is set to x x x 0.2 with all other render settings left default. On the geforce this results in trails, on the radeon it doesn't. 
> 
> Thanks for checking,
> Mattijs

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SmadSteck - http://www.smadsteck.nl
Hard- and software for interactive audiovisual sampling