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oTakhi Platform: Volumetric Lighting


mfdesigner
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We are happy to report that we have added Volumetric lighting as part of spotlight option.  Unlike post-processing derived Godrays effect where rays disappears when light source is located outside the view frustum, this approach is based on the method of slice-based volume rendering inspired by the work of Jason Mitchelle in "Light Shafts: Rendering Shadows in Participating Media" and works no matter where light source is located.

 

Here are three examples:

 

(1) Statue in light:  slow moving air particles are made from scrolling a noise map with additive blending.  The rate of movement is controllable.

 

 

statue.jpg

 

 

See it in Petri-Dish

 

 

(2) Gothic Window:  Spotlight gel is used to modulate light shafts' color.

 

gothic-window.jpg

 

 

See it in Petri-Dish

 

 

(3) Space Ship:  Uses spotlight diffuse color to control the color of it's probe light without noise.

 

 

spaceship.jpg

 

 

 

Many cool effects are now possible using volumetric lighting.

 

A video tutorial is forthcoming

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