[Radiance-general] falsecolor's isolux on observer's luminance.

[loscotec at libero.it]

Thank you Thomas!

I thought too something like that, but it does not fit my needs. 

I would like to generate the isolux via script .

And your technique could also be quite unprecise, 'couse it doesn't actually calculate rays from the observer eye, in a 'radial' way but from a plane placed in the observer position with parallel rays ...

If I'm wrong, please tell it to me! ;-)

Thank you anyway for your suggestion !

now I'll try the suggestions from Greg, and then I'll let you know !

Lucio

.
.On 4 Feb 2008, at 15:10, loscotec@@libero..it wrote:
.
.> Good day to everybody!
.>
.> I need yuor help!
.>
.> I would like to know if it is possible to do what I'm going to  
.> explain and how could I obtain such result.
.>
.> So.. what I need is to have in the end an orthogonal view from  
.> above a street which shows isolux lines of luminance from a  
.> determined poin of view.
.
.Alternative to Greg's proposal:
.
.Render a first image as a parallel projection with view point and  
.direction of
.the observer. Create a falsecolor image from this rendering. Then use  
.the
.generated image as a texture to colour your street. The texture  
.rotation would be
.the view direction of your observer. Render the street from above  
.just for the
.texture effect (no second falsecolor).
.
.Again the first image should be large to provide more details. The  
.second rendering
.could be done in any 3D modeller with sufficient control for texture  
.mapping (Blender
.for example).
.
.Thomas
.
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