<div dir="ltr"><div class="markdown-here-wrapper" style="font-family:Verdana,Arial,sans-serif;color:rgb(11,83,148)"><p style="margin:0px 0px 1.2em!important">Hi Willy,</p>
<p style="margin:0px 0px 1.2em!important">1. <span style="font-family:sans-serif">Yes, anyone can push code to VTK. Please follow the instructions here: </span><a href="https://gitlab.kitware.com/vtk/vtk/blob/master/Documentation/dev/git/develop.md" style="font-family:sans-serif">https://gitlab.kitware.com/vtk/vtk/blob/master/Documentation/dev/git/develop.md</a></p><div style="color:rgb(0,0,0);font-family:sans-serif"><font color="#0b5394">In short, all you need to do is create an account on <a href="https://gitlab.kitware.com/">https://gitlab.kitware.com/</a>, fork VTK and create a merge request.</font></div><br class="inbox-inbox-Apple-interchange-newline"><p style="margin:0px 0px 1.2em!important">2.  <span style="font-family:sans-serif">Have you looked at the streaming support within the vtkOpenGLGPUVolumeRayCastMapper. You can force by-block rendering by using SetPartitions(). Internally, it uses glTexSubImage3D as well. </span></p><div style="color:rgb(0,0,0);font-family:sans-serif"><font color="#0b5394"><br></font></div><div style="color:rgb(0,0,0);font-family:sans-serif"><font color="#0b5394">Hope that helps,</font></div><div style="color:rgb(0,0,0);font-family:sans-serif"><font color="#0b5394">Sankhesh</font></div><br class="inbox-inbox-Apple-interchange-newline">
<div title="MDH:SGkgV2lsbHksPGRpdj48YnI+PC9kaXY+PGRpdj5QbGVhc2Ugc2VlIG15IHJlcGxpZXMgaW5saW5l
LjwvZGl2Pg==" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Mar 6, 2017 at 2:55 AM Willy <<a href="mailto:Wiggerl@linhuber.info">Wiggerl@linhuber.info</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Yes i modified the source code and of course i could contribute the changes,<br class="gmail_msg">
but there are a few problems:<br class="gmail_msg">
<br class="gmail_msg">
1. i don't know how exactly i can do that. Can everybody who likes make<br class="gmail_msg">
whatever push requests to the vtk repository (i don't think so)??</blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> </blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br class="gmail_msg">
2. i think that my changes are more like a "hack". i could imagine that the<br class="gmail_msg">
correct way would be to use the pipeline to update a part of the data (maybe<br class="gmail_msg">
with updateExtent of something like that). i just added the following method<br class="gmail_msg">
to vtkOpenGLGPUVolumeRayCastMapper<br class="gmail_msg">
<br class="gmail_msg">
 void UpdateData(int xoffset, int yoffset, int zoffset, unsigned int width,<br class="gmail_msg">
unsigned int height, unsigned int depth, void *data);<br class="gmail_msg">
<br class="gmail_msg">
I don't think thats a good way do do it.<br class="gmail_msg">
<br class="gmail_msg"></blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br class="gmail_msg">
<br class="gmail_msg">
--<br class="gmail_msg">
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Sent from the VTK - Users mailing list archive at Nabble.com.<br class="gmail_msg">
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</blockquote></div></div><div dir="ltr">-- <br></div><div data-smartmail="gmail_signature"><div dir="ltr"><div class="inbox-markdown-here-wrapper" style="font-family:'proza libre',sans-serif;color:rgb(0,56,107)"><h5 id="inbox-sankhesh-jhaveri" style="margin:1.3em 0px 1em;padding:0px;font-size:1.1em;border-bottom-width:1px;border-bottom-style:solid;border-bottom-color:rgb(238,238,238);font-weight:bold;color:rgb(11,65,148)">Sankhesh Jhaveri</h5>
<h6 id="inbox--sr-research-development-engineer-kitware-http-www-kitware-com-518-881-4417" style="margin:1.3em 0px 1em;padding:0px;font-size:1em;color:rgb(11,83,148);font-family:'open sans',sans-serif;font-weight:normal"><em>Sr. Research & Development Engineer</em> | <a href="http://www.kitware.com/">Kitware</a> | (518) 881-4417</h6>
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aXY+PC9kaXY+PC9kaXY+" style="height:0px;width:0px;max-height:0px;max-width:0px;overflow:hidden;font-size:0em;padding:0px;margin:0px">​</div></div></div></div>