My thought was, "why don't you show us exactly HOW you draw these lines?"
I do take note of your point about some of the lines having endpoints near the edge of the range. Edge cases are more likely to demonstrate bugs. So assuming you aren't doing something confused, you may have some good test cases to offer -- but you'd need to actually offer the reproducible test case, and not just a description of the symptoms. And you'll get a lot more useful responses. On Aug 1, 11:47 pm, Indicator Veritatis <mej1...@yahoo.com> wrote: > I have run several OpenGL programs on both emulator and G1, yet I have > never seen any of the effects you mention. > > I cannot explain why you see them and I do not. I can think to ask: do > you see them when you run the OpenGL programs in APIDemo? > > On Aug 1, 7:31 pm, SChaser <crotalistig...@gmail.com> wrote: > > > > > After a frustrating day of having the Emulator render lines strangely, > > and then discovering that my G1 renders them exactly as I expect, I am > > left to wonder how to test OpenGL (using GLSurfaceView). > > > Is the emulator sufficient to test code for correctness? I ask because > > I experienced the following on the emulator, but not on the G1, all > > using Ortho projection. > > > 1) Line width depending on length! I drew a series of lines, most > > fairly short but several with endpoints close to the edge of the fixed- > > point number range. The long lines were rendered as wide. The short > > lines were rendered as 1 pixel wide. > > > 2) Lines exploding to fill the whole screen when not appropriate to > > the scale (double the scale, line goes from 1/10th screen width to > > filling screen (or more). > > > 3) Lines not appearing at all if horizontal. > > > Is the emulator a correct openGL implementation? If I see problems on > > the emulator, am I likely to see them on some hardware platforms? > > > Can I use my G1 as a reference platform? > > > Or do I need a whole slew of phones to verify that an openGl app > > (scientific graphics, not animated) works across all platforms? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
