Re: [osg-users] Limit rendering a texture up to a given pixel

2017-06-30 Thread Bruno Oliveira
Yes I implemented something like that! Thanks ! 2017-06-29 19:45 GMT+01:00 Christian Buchner : > > A uniform specific to each tile that defines the dimensions for the valid > part of the tile? The shader would get the gl_FragCoord, compare it against > the threshold and return a transparent color

Re: [osg-users] Limit rendering a texture up to a given pixel

2017-06-29 Thread Christian Buchner
A uniform specific to each tile that defines the dimensions for the valid part of the tile? The shader would get the gl_FragCoord, compare it against the threshold and return a transparent color for pixels outside the valid bounds. Christian 2017-06-29 11:28 GMT+02:00 Bruno Oliveira : > Hello,

[osg-users] Limit rendering a texture up to a given pixel

2017-06-29 Thread Bruno Oliveira
Hello, I have a big image to be rendered (100k pixels each side), hence I am partitioning that image in Image Tiles. Each tile has 256 x 256 pixels. Each tile consists of a osg::Geometry quad, with a texture bound to it. I put all those tiles in an osg::Group. I use a fragment shader that is glo