Anyone? a|x
--- On Fri, 21/11/08, Alex Drinkwater <[EMAIL PROTECTED]> wrote: > From: Alex Drinkwater <[EMAIL PROTECTED]> > Subject: Re: Render In Image and GLSL noise() > To: [email protected] > Date: Friday, 21 November, 2008, 3:37 PM > I've been doing a few more tests, and it seems to be > related to the GLSL noise3() function. If I rewrite the > Fragment Shader so it outputs > > gl_FragColor = vec4(gl_TexCoord[0].xyz,1.0); > > I don't get the glitch. With the noise function in > place, however, I get a blank (alpha 0) triangle at the left > edge. When any of the parameters associated with the > noise3() function are altered, the triangle changes size. > Also, if the Width and Height of the Render In Image's > output are changed, the blank triangle changes size. > > I've attached a screenshot of the glitch. > > Any advice on what might be causing this much appreciated. > > It will be very annoying if this isn't fixable, > especially since the noise function is disabled in the > CIFilter language. > > a|x > http://machinesdontcare.wordpress.com > > > > > --- On Fri, 21/11/08, Alex Drinkwater > <[EMAIL PROTECTED]> wrote: > > > From: Alex Drinkwater <[EMAIL PROTECTED]> > > Subject: Render In Image and GLSL noise() > > To: [email protected] > > Date: Friday, 21 November, 2008, 2:17 PM > > I'm trying to make a simple perlin-noise macro > using the > > GLSL noise3() function, driven by fragment X/Y > position. The > > shader works fine when rendering directly, but not > when > > placed inside a Render In Image patch an connected to > a > > Billboard (I get glitching along the left-hand edge of > the > > output image). > > > > I need to be able to pipe the result of the shader to > other > > patches. > > > > Anyone any thoughts on what, if anything, I can do to > fix > > this? > > > > I've attached the QTZ below. > > > > I'm on a 1st-generation MacBook Pro > > ATI X1600 256MB GPU > > MacOS 10.5.5 > > QuickTime 7.5.5 > > > > Cheers, > > > > a|x > > http://machinesdontcare.wordpress.com > > > > > > > > > > > > _______________________________________________ > > 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/the_voder%40yahoo.co.uk > > > > This email sent to [EMAIL PROTECTED] > > > _______________________________________________ > 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/the_voder%40yahoo.co.uk > > This email sent to [EMAIL PROTECTED] _______________________________________________ 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/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
