How to creating a old comic book effect for your photos.

Retro Comic Book Effect

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A very cool linear light halftone dot effect in less than 2 minutes.

Halftone Dots and Linear Light

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Learn how to make the model in this tutorial more suggestive with awesome curves.

Make Photos More Suggestive

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How to easily add a realistic water reflection to any photo.

Realistic Water Reflection

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How to use a variety of filters and techniques to produce an image in an experimental style.

Displacement effects

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Photoshop effect : How to create a crazy explosion, like a mix of Magneto’s ability with Peter Petrelli’s power.

Mental Wave Explosion Effect

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this script converts all scene VRay materials to max’s standard material.
it keeps diffuse color and diffuse map. right now it works with multi sub-object materials if you guys found it useful .

Script

for o in geometry do
(
if classof o.material == VRayMtl do
 (

  tt = Standardmaterial ()
  tt.diffusemap = o.material.texmap_diffuse
  
tt.diffuse = o.material.diffuse
  o.material = tt
 )
if classof o.material == Multimaterial then
 for m = 1 to o.material.numsubs do
 (
  if classof o.material [m] == VRayMtl do
  (

  tt = Standardmaterial ()
  tt.diffusemap = o.material[m].texmap_diffuse
  
tt.diffuse = o.material[m].diffuse
  o.material [m] = tt
  )
 )
 
)
actionMan.executeAction 0 “40807″

cedit :  Afshin Karimi

http://www.scriptspot.com/3ds-max/vray-material-to-standard-material

Motivation

Ambient occlusion is a lighting technique used to give models a global illumination-like effect, as if it were lit from the entire hemisphere (rather than a point light). A set of visibility samples are collected from the hemisphere above a point, and a scalar “ambient occlusion” value is computed based on the percentage of unoccluded samples. For a nice overview of ambient occlusion, check out Steve Hill’s article in Gamastura. Some other very good ambient occlusion tutorials have been written by Zhang Jian, Bob Moyer, and Andrew Whitehurst.

Approaches

There are two basic approaches for computing ambient occlusion. The first is ray tracing; simply shoot out rays in uniform pattern across the hemisphere. The percentage of rays that hit geometry is divided by the total number of rays to get a scalar value. This could also be done with hardware rendering by placing a camera at every triangle and counting the percentage of the hemisphere that is visible. Since this requires computing occlusion at every triangle, this approach is in general O(N^2), although with efficiency structures (such as bounding volume hierarchies) it can be reduced to O(NlogN).

The second approach is an “outside-looking-in” approach. The model is rendered from a set of M random points on the sphere surrounding the model. The occlusion information is stored for each viewpoint, and averaged. The complexity of this approach is O(N*M), or O(MlogN) with efficiency structures. Since M is generally much smaller than N, this makes it interesting for realtime work. Since this is the approach I am interested in, let me explain the algorithm in more detail.

goto full Assorted Notes :

http://www.cs.unc.edu/~coombe/research/ao/

Global illumination is a very popular method for lighting three dimensional scenes. Unfortunately, most of the methods are very slow and requires lots of ressources. Ambient Occlusion is a method for simulating global illumination, while keeping a respectable ratio between results and computing times.

As well as anything related to raytracing with Blender, because of the supplementary computing time required by your computer, raytracing is only an option that you should feel free to activate and deactivate. This is done by the mean of the Scene menu (F10 key). The Render tab shows a button labeled Ray you will have to activate in order to use raytracing in your pictures.

goto Tutorial :

http://feeblemind.tuxfamily.org/dotclear/index.php/2005/01/16/10-didacticiel-locclusion-ambiante—tutorial-ambient-occlusion