Hi Ying,
This is not possible directly. The vertex shader processes one vertex
per run.
You could check gl_VertexId [1] if you need to know which vertex is
being processed in the current run.
Another option is to store the distortion information inside an vertex
attribute per vertex.
Since you didn't explain what the source of your distortion information
is we can only guess what you really want here ;-)
Cheers
Sebastian
[1] https://www.opengl.org/sdk/docs/man/html/gl_VertexID.xhtml
Hello,
Would someone tell me how to access all the vertexes of a 3d model in the
vertex shader?
I want to render a distorted model by chaning the positions of the 3d model's
vertexes. I tried to use 'gl_Vertex' to access the vertexes, but seems that it
didn't work.
Hope someone could help me on this.
Thank you!
Cheers,
ying
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=59915#59915
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