Print at Dec 22, 2025, 12:36:20 PM

Posted by sree.arun.kr at Jun 17, 2014, 10:31:50 AM
love struck   Sunflow Renderer
Hello, SweetHome3D.
I would like to discuss a feature available in Sunflow called glow/self-illumination for the future usage in SH3D. blushing
Here some sample pictures and scenes in sunflow

Sunflow v0.07.2 Render output in 52 sec(above).

3dsMax v2011 MetalRay Render outputin 12 sec(above).

SweetHome3D v4.4 Render output in 1 min.2 sec(above).
Method Used for green ball which gives glow:

shader {
name "Self_illum_Color"
type constant
0.168627 0.898039 0.152941
}
object {
shader "Self_illum_Color"
type sphere
name "Sphere001"
c 34.3575 56.9843 9.33377
r 9.33377
}

Scene Details:(below)

Here is an another image which is tweaked sunflow example scene(below).


Working with this setting I found a one more feature in sunflow that is called mesh light(example phong003)(below)

Sphere is used as a light which have 760 triangular polygon faces. So the scene consist of 760 lights. The scene took 1Hr 20Mins for rendering in sunflow. I think this technique can be used instead of "add ceiling light". By choosing a rectangular plane(2 triangle face) or a hexagon plane(6 triangle face) on top of ceiling to produce light.Feature of this light is it does not burn(/over bright) the ceiling ,light with different shape and shadows are smooth.
Its script is
light {
type meshlight
name "meshlight"
emit 1 1 1
radiance 15
samples 16
points 4
0.999999940395 -1.40001678467 2.67206859589
0.999999940395 -2.93210554123 1.38649308681
-1 -2.93210530281 1.38649332523
-0.999999642372 -1.40001630783 2.6720688343
triangles 2
0 1 2
0 2 3
}


light {
type meshlight %light type like piont
name "meshlight" %name of object which gives light
emit 1 1 1 %light intencity
radiance 15 %light radius
samples 16 %shadow strength/bias
points 4 %Light shape used vertex(plane)
0.999999940395 -1.40001678467 2.67206859589 %1st vertex xyz loction
0.999999940395 -2.93210554123 1.38649308681 %2nd vertex xyz loction
-1 -2.93210530281 1.38649332523 %3rd vertex xyz loction
-0.999999642372 -1.40001630783 2.6720688343 %4th vertex xyz loction
triangles 2 %Light shape used polygon /faces
0 1 2 %1st Polygon arrangement
0 2 3 % 2nd Polygon arrangement
}
Here is my work Files.(you can drag and drop the .sc files in notepad++, save changes and then renderit in sunflow)
Some scenes are created in 3dsmax2011. hugs shhh
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