Thank you for the everything! @ vade! now works much better but slow. It is graphic problem but I don't have to animate it. thnks
@ Achim. True! My idea is to make a floor, so turn 90ยบ and -.5 Y position because I wanted to move the camera and so the floor. but I could just fake the animation by not using Z coordinates or prespective depth and fake that effect by just syncronise it with the camera movement I am thinking to use Fog as well... :) Thank you !!! Best! On Sat, Aug 21, 2010 at 10:21, Achim Breidenbach <[email protected]> wrote: > Hi Oscar, > > In this case I think you approach to create a very big circle texture to > draw only a small section of it as a bend horizontal line. > > The better way would be not to make the image bigger, but to fiddle around > with the coordinates and values that places the circle in the image. > > I would make the "Image Crop" the same size of the QC view (with a "Render > Dimension" patch). Then move the center of the circle in the image by adding > some value to this line in the CI kernel: > > float x = samplerCoord(image).x - diameter/2.; > float y = samplerCoord(image).y - diameter/2. + moveDown; > > Now you can put in big numbers for the "diameter" an the "moveDown" > parameter without having to have a big texture. > > See attachment: > > > > (also changed the sprite to a billboard, because everything is 2D) > > Best, > > Achim Breidenbach > Boinx Software > > > On 20.08.2010, at 21:56, Oscar 'offonoll' wrote: > > True, it may be big but I wanted to create a 'floor' with 10 unit size or > 'infinite dim' so I could see a nice horizontal line with a small curve. But > I could use a fixed size... true! but this CI has a open edge that when it > is open I see big pixel squares. > I understand your explanation, it's very reasonable. > Noise Industries also have a circle but it doesn't happen this error. > > Thank you for the explanation! > > On Fri, Aug 20, 2010 at 21:39, Achim Breidenbach <[email protected]> wrote: > >> Hi Oscar, >> >> to me it seems that you uses way to big textures. Looking at the "Crop >> Width" and "Crop Height " parameter of the "Image Crop" Patch, you are >> generating images bigger than the "maximum texture size" usable in the >> graphics card. If so, QC has to "tile" the image into multiple textures >> which then will cause those things because your core image filter is running >> on each texture separately. >> >> Interesting question is, why you are using those big textures? Some how >> your "Sprite" patch is drawing the sprite at z=-10 which means far far away >> in the back of your computer screen. Then to see at least some pixels of >> your image, the image has to be very big. But changing the z parameter of >> the sprite patch to 0, you can enter a reasonable "End Value" in the >> "Interpolation" patch, e.g. 0.7 >> >> Best, >> >> Achim Breidenbach >> Boinx Software >> >> >> On 20.08.2010, at 19:23, Oscar 'offonoll' wrote: >> >> > Hello everyone! >> > I got a wired reaction in Rendering a CoreImage Circle that I tweak a >> bit from Christopher. I put a diameter viariable to get a better real size >> but depending on the size, It flips half of the image. >> > >> > Do you know what is the reason? >> > >> > Thank you! >> > >> > Oscar. >> > <CoreImage circle size.qtz> >> _______________________________________________ >> > Do not post admin requests to the list. They will be ignored. >> > Quartzcomposer-dev mailing list ( >> [email protected]) >> > Help/Unsubscribe/Update your Subscription: >> > >> http://lists.apple.com/mailman/options/quartzcomposer-dev/achim%40boinx.com >> > >> > This email sent to [email protected] >> >> > > >
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