Re: [osg-users] Problem with Producer::Rendersurface : transparent pictures

2008-05-20 Thread Sébastien Laigre

Hi Robert,

Thank you for your help. In fact, the window size (of the RenderSurface) 
changes every frame. So I adapt the viewport (of the sceneView) size. 
The Model also changes. In fact I try to render the mesh to get a 
texture. I adapt the size of the viewport and window in function of the 
size of the model.
But I found a solution, maybe it is not the best but it works : I create 
a Producer::RenderSurface with a size 1024*1024. Its size does'nt change 
whereas the size of the sceneView changes. The pictures I got are 
correct. It may be I mistake from myself but I do not know where it came 
from.


Thank you.


Hi Sebastien,

What size is changing  Window size?  Model size? Viewport size???
The length of a piece of string?

Robert.

On Mon, May 5, 2008 at 5:27 PM, Sébastien Laigre
[EMAIL PROTECTED] wrote:
 

Hi !

 In order to do rasterization, I create a Producer::RenderSurface and a
osg::SceneView. The problem is that its size is changing very often 
(maybe

10 times/second). If I let the size constant, images are corrects but as
soon as the size changes, images are correct on the bottom-left 
corner and

the alpha channel is equal to zero else. Sizes of the RenderSurface and
SceneView are the same. Have you got any idea of where it can com 
from ? How

can I fix it ?

 Thank in advance.

 Sebastien

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Re: [osg-users] Problem with Producer::Rendersurface : transparent pictures

2008-05-20 Thread Robert Osfield
Hi Sebastien,

I'm afraid I don't really have a clue what exactly you are trying to
do and why.  You are using API's that are no longer used by the core
OSG (Producer) and also OSG API's that I do recommend the use of
(SceneView).   All in all its a recipe for almost impossible support.

I'd recommend that you use a modern version of the OSG, and use well
support classes like osgViewer::Viewer, and where possible make it
clear in your emails what you are doing and why.

Robert.

On Tue, May 20, 2008 at 4:19 PM, Sébastien Laigre
[EMAIL PROTECTED] wrote:
 Hi Robert,

 Thank you for your help. In fact, the window size (of the RenderSurface)
 changes every frame. So I adapt the viewport (of the sceneView) size. The
 Model also changes. In fact I try to render the mesh to get a texture. I
 adapt the size of the viewport and window in function of the size of the
 model.
 But I found a solution, maybe it is not the best but it works : I create a
 Producer::RenderSurface with a size 1024*1024. Its size does'nt change
 whereas the size of the sceneView changes. The pictures I got are correct.
 It may be I mistake from myself but I do not know where it came from.

 Thank you.

 Hi Sebastien,

 What size is changing  Window size?  Model size? Viewport size???
 The length of a piece of string?

 Robert.

 On Mon, May 5, 2008 at 5:27 PM, Sébastien Laigre
 [EMAIL PROTECTED] wrote:


 Hi !

  In order to do rasterization, I create a Producer::RenderSurface and a
 osg::SceneView. The problem is that its size is changing very often
 (maybe
 10 times/second). If I let the size constant, images are corrects but as
 soon as the size changes, images are correct on the bottom-left corner
 and
 the alpha channel is equal to zero else. Sizes of the RenderSurface and
 SceneView are the same. Have you got any idea of where it can com from ?
 How
 can I fix it ?

  Thank in advance.

  Sebastien

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Re: [osg-users] Problem with Producer::Rendersurface : transparent pictures

2008-05-07 Thread Robert Osfield
Hi Sebastien,

What size is changing  Window size?  Model size? Viewport size???
The length of a piece of string?

Robert.

On Mon, May 5, 2008 at 5:27 PM, Sébastien Laigre
[EMAIL PROTECTED] wrote:
 Hi !

  In order to do rasterization, I create a Producer::RenderSurface and a
 osg::SceneView. The problem is that its size is changing very often (maybe
 10 times/second). If I let the size constant, images are corrects but as
 soon as the size changes, images are correct on the bottom-left corner and
 the alpha channel is equal to zero else. Sizes of the RenderSurface and
 SceneView are the same. Have you got any idea of where it can com from ? How
 can I fix it ?

  Thank in advance.

  Sebastien

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[osg-users] Problem with Producer::Rendersurface : transparent pictures

2008-05-05 Thread Sébastien Laigre

Hi !

In order to do rasterization, I create a Producer::RenderSurface and a 
osg::SceneView. The problem is that its size is changing very often 
(maybe 10 times/second). If I let the size constant, images are corrects 
but as soon as the size changes, images are correct on the bottom-left 
corner and the alpha channel is equal to zero else. Sizes of the 
RenderSurface and SceneView are the same. Have you got any idea of where 
it can com from ? How can I fix it ?


Thank in advance.

Sebastien

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