x*n
发帖数: 305 | 1 volumetric rendering function in opengl,
谁用过？ | v*******n
发帖数: 15 | 2
glTexImage3D just load 3D textures. It can be used for fast volume rendering,
but a little bit troublesome, i.e. you need generate polygons and their
corresponding texture coordinates.
If you just want 3D texture hardware to accelerate volume rendering, use
OpenGL Volumizer
【在 x*n 的大作中提到】
: volumetric rendering function in opengl,
: 谁用过？
| x*n
发帖数: 305 | 3
visualman? interesting, One of my former labmate's nickname is hapticman.
Yes this is exactly what we need know, how to get the texture coordinates
after polygonization.
An indian labmate asked me about this. I said polygonization is needed for
using that function, he said maybe not.
I think there should be some red book examples for him to check out.
Is it another function or a toolkit?
【在 v*******n 的大作中提到】
:
: glTexImage3D just load 3D textures. It can be used for fast volume rendering,
: but a little bit troublesome, i.e. you need generate polygons and their
: corresponding texture coordinates.
: If you just want 3D texture hardware to accelerate volume rendering, use
: OpenGL Volumizer
| v*******n
发帖数: 15 | 4
Thanks
rendering,
Align the volume(object) coordinates with the texture coordinates
World coodinates -> object coordinates -> texture coordiantes
I do not think so. But there are some papers about this in Siggraph in 1990's
http://www.sgi.com/software/volumizer/
【在 x*n 的大作中提到】
:
: visualman? interesting, One of my former labmate's nickname is hapticman.
: Yes this is exactly what we need know, how to get the texture coordinates
: after polygonization.
: An indian labmate asked me about this. I said polygonization is needed for
: using that function, he said maybe not.
: I think there should be some red book examples for him to check out.
: Is it another function or a toolkit?
| x*n
发帖数: 305 | 5
http://www.opengl.org/discussion_boards/ubb/Forum3/HTML/000246.html
siggraph '99 - vol3dtex, I went to sig99 but the code is not there.
anyone know how to get this or other opengl 3dtexture mapping example?
this is something new to me, thanks~
【在 v*******n 的大作中提到】
:
: Thanks
: rendering,
: Align the volume(object) coordinates with the texture coordinates
: World coodinates -> object coordinates -> texture coordiantes
: I do not think so. But there are some papers about this in Siggraph in 1990's
: http://www.sgi.com/software/volumizer/
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