RenderMan & RISpec, Using the Reyes Rendering Pipeline

comp.graphics.rendering.renderman - RenderMan interface & shading language.


RenderMan & RISpec >> Using the Reyes Rendering Pipeline

by Philip Fennell » Wed, 20 Aug 2008 23:16:30 GMT

Earlier this year I wrote a short article for XML.com called "XSLT and
Image Rendering" <http://www.oreillynet.com/xml/blog/2008/06/
xslt_and_image_rendering.html> introducing the idea of rendering SVG
graphics using XSLT 2.0 and outputting the result as a TIFF image. The
render makes use of a 'partial' XSLT implementation of the Reyes
Rendering Pipeline.

If you've got an idle five minutes you might want to amuse yourself
with a quick look.
Top

RenderMan & RISpec >> Using the Reyes Rendering Pipeline

by Philip Fennell » Wed, 20 Aug 2008 23:16:35 GMT


Earlier this year I wrote a short article for XML.com called "XSLT and
Image Rendering" < http://www.oreillynet.com/xml/blog/2008/06/
xslt_and_image_rendering.html> introducing the idea of rendering SVG
graphics using XSLT 2.0 and outputting the result as a TIFF image. The
render makes use of a 'partial' XSLT implementation of the Reyes
Rendering Pipeline.

If you've got an idle five minutes you might want to amuse yourself
with a quick look.
Top
Similar Threads

1. Rendering with XSLT and the Reyes Pipeline

2. Is 1 tflop enough for realtime REYES rendering? - RenderMan & RISpec

3. Alpha implementation using Reyes-like architecture

4. can fixed pipeline cooperate with programmable pipeline?

5. Separate Rendering on Fixed Pipeline 

Hello all.

I have 2 textures with color and some alpha  chanel data.
And i must to blend it in next way

some factor;

result.color = tex1.color * (factor) + tex2.color * (1-
factor)

result.alpha = tex1.alpha * (factor) + tex2.alpha * (1-
factor)

Anybody know, can I did it on fixed pipeline?

Thanks in advanse!
Andriy Sorich  XXXX@XXXXX.COM   ICQ: 241823198

6. Rendering to texture and flushing the pipeline

7. using specular maps in fixed function pipeline 

I have a question about using specular maps in the fixed function pipeline.  
I'm using similar code to what is in the SDK documentation under Specular 
Light Maps (Direct3D 9).....

// Set the base texture.
d3dDevice->SetTexture(0, lptexBaseTexture );

// Set the base texture operation and arguments.
d3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE );
d3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
d3dDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );

// Set the specular light map.
d3dDevice->SetTexture(1, lptexSpecLightMap);

// Set the specular light map operation and args.
d3dDevice->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_ADD );
d3dDevice->SetTextureStageState(1, D3DTSS_COLORARG1, D3DTA_TEXTURE );
d3dDevice->SetTextureStageState(1, D3DTSS_COLORARG2, D3DTA_CURRENT );

// Set the RGB light map.
d3dDevice->SetTexture(2, lptexLightMap);

// Set the RGB light map operation and arguments.
d3dDevice->SetTextureStageState(2,D3DTSS_COLOROP, D3DTOP_MODULATE);
d3dDevice->SetTextureStageState(2,D3DTSS_COLORARG1, D3DTA_TEXTURE );
d3dDevice->SetTextureStageState(2,D3DTSS_COLORARG2, D3DTA_CURRENT );


What I see in game is not exactly what I expect.  The specular values do get 
added into the texture and the light map is applied over it, but it doesn't 
appear that the specular highlights are changing as the camera / object moves 
in relation to the light.  What I'm looking for is a way to add different 
areas of specularity on the same piece of geometry using the specular map.

My guess is that this sample is intended to be a static specular map, as it 
doesn't really know about the camera or light because it's just a texture 
added over the diffuse texture.

Does anyone know if there is a way to do a specular map using the fixed 
function pipeline, or is this something that can only be done using shaders.

Thanks
-- 
-Rick

8. I'm looking for simple REYES implementation. - RenderMan & RISpec