Simple Bulge Effect

Quite simple... Just add an equation before projecting the vertex position.

OUT.Position = IN.Position + ScaleFactor*0.5*(sin(IN.Position.y*Frequency*Time)+1) * IN.Normal.xyz;

The effect result is so so, but it's really interesting.

Another two animation effects in Cg Tutorial requires host application support, so I don't wanna study it now.

Refer to Cg Tutorial Chapter 7

Get Source Code Here.

Lighting Effect (Phong Model)

My implematation of Phong Lighting Model, refer to  Cg Tutorial Chapter 5, composed in FxComposer.

Below three pictures are captured in FxComposer. The Light is located at left-front-below position from the elephant, Light's direction to directly toward the elephant.

1. Point Light, No Light Decay.
   
   
2. Point Light, with Light Decay. The plane behind elephant is darker than front ones , as the Light is affected by distance between Light position and Vertex position. Refer to "Distance Attenuation" section of the tutorial.
   
   
3. Spot Light, with Light Decay. Refer to "Adding a SpotLight Effect" section. This effect is more interesting than above two :)
   
   

Refer to Cg Tutorial Chapter 5, HLSL lit() function, 3D变换中法向量变换矩阵的推导, FxComposer Phone Sample.

Get Source Code Here.

Double Vision Effect

Just to congradulate my baby step of nVidia.Cg Effect composed in FX Composer.

No Effect -

Double Vision -

Refer to Cg Tutorial Chapter 3, Using SAS in FX.

Get Source Code Here, this cgfx require Quad.cgh.

Mosaic Effect

Develop with RenderMonkey, refer to Someone's blog:

    

Get Source Code Here. (Not understand how to make RenderTarget work in FX Composor, so I just provide RenderMonkey project file here).

 

Blur and some Effects

Develop with RenderMonkey, refer to <Shaders for Game Programmers and Artists>:

  

 

Blur - Get Source Code Here.

EdgeDetection - Get Source Code Here.

Sharpening - Get Source Code Here.

Animated Texture - Get Source Code Here.

Motion Blur - Get Source Code Here. (not passed FX Composer Test, require fixing)

Grayscale Effect

Develop with RenderMonkey, refer to <Shaders for Game Programmers and Artists>:

 

Get source code here.

Some matrix will be helpful: