GEM-dev September 2016

gem-dev@lists.iem.at

6 participants
4 discussions

stereoscopic colour mode
by Tim Wright 17 Nov '16

17 Nov '16

Is there a way to change the anaglyphic colour mode from red/green to red/cyan? I see that a feature request was made a long time ago… Thanks, Tim. -- Dr. Tim Wright http://www.timwrightmusic.com http://www.st-karas.com

3 4

QT gone in OS X 10.12 & Xcode 8
by Dan Wilcox 27 Sep '16

27 Sep '16

FYI the QuickTime framework is gone from Xcode 8 and the upcoming macOS Sierra (10.12). I recently upgraded to Xcode 8 and see the 10.12 SDK no longer has QT, which means the QT interfaces for GEM will no longer build. -------- Dan Wilcox @danomatika <https://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

1 0

window with width < height
by Nicolas Montgermont 26 Sep '16

26 Sep '16

Hello, I have a window of 16/18 ratio (1920x2160 pixels) and a framebuffer with the same dimensions. I try to manage the perspec of the frame buffer but don't really understand how it is working. usually if i have a 16/9 ratio, I just send for example [dimen 1920 1080, rectangle 1, perspec -1.7777 1.7777 -1 1 1 20( and then I can display things fullscreen with for example [rectangle 7.11111 4]3 here if i keep height as fixed i do: [dimen 1920 2160, rectangle 1, perspec -0.8888 0.8888 -1 1 1 20( but if I try to display a [rectangle 3.55555 4] it is far wider than the window [rectangle 1.8 4] seems closer to what it should look ( I have a [translateXYZ 0 0 -4] before the frame buffer. a square is far wider than expected as well. So what perspec should I use? Thx in advance, Nicolas -- http://www.nimon.org

1 1

mipmapping and pix_snap2tex and GEMgl*
by Claude Heiland-Allen 24 Sep '16

24 Sep '16

Hi! I've got a little patch that generates a fractal using texture feedback. It looks really bad if I don't enable mipmapping (texture quality 2), but pix_snap2tex doesn't regenerate the mipmaps. I hacked my local Gem to glGenerateMipmap(GL_TEXTURE_2D) after snapping, but this has some issues: * maintaining local patches across several machines is annoy * glGenerateMipmap is wasteful if mipmaps are not being used The second issue makes me think the simplest solution would be a new object, perhaps GEMglGenerateMipmap, that I could put directly after pix_snap2tex to make it work. This would defer the problem to the patch level, an automagic system to track when mipmaps need to be regenerated would be a lot more work and probably break some bizarro use cases where mipmaps shouldn't be regenerated. Thoughts? Claude -- https://mathr.co.uk

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GEM-dev September 2016