#3606: m.nviz.image produces a screenshot
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Reporter: epifanio | Owner: grass-dev@…
Type: defect | Status: new
Priority: major | Milestone:
Component: Display | Version: svn-trunk
Resolution: | Keywords:
CPU: x86-64 | Platform: Linux
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Comment (by hcho):
Replying to [comment:17 hcho]:
> Replying to [comment:14 cmbarton]:
> > When this is at a point where it seems to be working on Windows, let
me know and I'll recompile it for the Mac and test some more.
>
> r72997 works on Windows at least for me, but no changes to the Mac code.
Check this code from https://www.panda3d.org/reference/1.7.2/cxx/osxGraphicsBuffer.cxx_source.php
{{{
if (_pbuffer == NULL) {
GLenum target = GL_TEXTURE_RECTANGLE_ARB;
if (_x_size == Texture::up_to_power_2(_x_size) &&
_y_size == Texture::up_to_power_2(_x_size)) {
// It's a power-of-two size, so we can use GL_TEXTURE_2D as the
// target. Dunno, but maybe this will be more likely to work on
// some hardware.
target = GL_TEXTURE_2D;
}
if (!aglCreatePBuffer(_x_size, _y_size, target, GL_RGBA, 0,
&_pbuffer)) {
report_agl_error("aglCreatePBuffer");
close_buffer();
return false;
}
}}}
They use GL_TEXTURE_RECTANGLE_ARB for non-powers of 2 size and
GL_TEXTURE_2D for powers of 2. Probably, you can try
GL_TEXTURE_RECTANGLE_ARB in line 146 in lib/nviz/render.c. Wish I had a
Mac.
In [changeset:"73006" 73006]:
{{{
#!CommitTicketReference repository="" revision="73006"
nviz, ogsf: Use framebuffer objects for off-screen GL rendering; Use Core
OpenGL (CGL) for the MacOS instead of deprecated 32-bit only AGL (Fix #3600, #2114, #3606)
}}}
