CustomMaterial
==============

### CustomMaterial is a StandardMaterial with some customizable Options 
1- manage part of current shader
> CustomMaterial put some part of shader in special part of current shader and make new shader in ShaderStore 
 > shaders struct  :
 >
 >   [ Begin ]
 >
 >   . // includes  extensions  varyng uniforms attributes  special functions 
 >  
 >   [ Definations ]
 >
 >   void main(){
 >   
 >       [ Main Begin ]  
 >  
 >       .
 >       .
 >       .
 >  
 >       [  ]
 >   
 >   }  



method : SelectVersion(ver:string) 
> Custom material for now Supported just ver 3.0.0 of BabylonJs and this is default of currentVersion for now
> Add other old version in Progress %
  
  
method : AddUniform(name:string,kind:string,param:any):CustomMaterial 
> for append dynamic setting and manage </br>
> this method Add Unforn in bouth of shaders(Fragment and Vertex) </br>
> usage : new CustomMaterial(...).AddUniform('time','float') </br>
>       : new CustomMaterial(...).AddUniform('direction','vec3',new BABYLON.Vector3(0.,0.,0.)) </br>
>       : new CustomMaterial(...).AddUniform('txt1','sampler2D', new BABYLON.Texture("path",scene))  


method : Fragment_Begin(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append in start of main function in fragment shader </br>
> usage :  new CustomMaterial(...).Fragment_Begin('vec3 direction = vec3(0.);') 


method : Fragment_Definations(shaderPart:string):CustomMaterial
> shaderPart is Shader Structure append in befor of the main function in fragment shader </br>
> you can define your varyng and functions from this  </br>
> usage :  new CustomMaterial(...).Fragment_Definations('float func1(vec4 param1){ return param1.x;}')  </br>
> * dont try use uniform with this function because uniforms need to add buffers


method : Fragment_MainBegin(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append in start place of the main function in fragment shader 


method : Fragment_Custom_Diffuse(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append after diffuseColor is defined of the main function in fragment shader </br>
> usage : new CustomMaterial(...).Fragment_Custom_Diffuse('diffuseColor = vec3(sin(vPositionW.x));')  </br>
>       : new CustomMaterial(...).Fragment_Custom_Diffuse('result = vec3(sin(vPositionW.x));')  </br>
> * diffuseColor is vec3 variable </br>
> * you can use result (vec3) too that replaced by diffuseColor


method : Fragment_Custom_Alpha(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append when material need a alpha parameter in fragment shader </br>


method : Fragment_Before_FragColor(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append before gl_FragColor wanna be set in fragment shader </br>
> * color is vec4 parameter be set in last part to gl_fragcolor
> * you can use result (vec4) too
> * this part your last chance for change the frag color


method : Vertex_Begin(shaderPart:string):CustomMaterial
> shaderPart is Shader Structure append in start of main function in vertex shader </br>
> usage :  new CustomMaterial(...).Vertex_Begin('vec3 direction = vec3(0.);') 


method : Vertex_Definations(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append in befor of the main function in vertex shader </br>
> you can define your varyng and functions from this  </br>
> usage :  new CustomMaterial(...).Vertex_Definations('float func1(vec4 param1){ return param1.x;}')  </br>
> * dont try use uniform with this function because uniforms need to add buffers </br>
> * for connect any information between vertex and fragment part in shader you can define varying you need make that in both of definition part


method :  Vertex_MainBegin(shaderPart:string):CustomMaterial 
> shaderPart is Shader Structure append in start place of the main function in vertex shader 


method : Vertex_Befor_PositionUpdated(shaderPart:string):CustomMaterial{        
> shaderPart is Shader Structure append after positionUpdated is defined of the main function in vertex shader </br>
> usage : new CustomMaterial(...).Vertex_Befor_PositionUpdated('positionUpdated = positionUpdated;')  </br>
>       : new CustomMaterial(...).Vertex_Befor_PositionUpdated('result = positionUpdated * 1.5 ;')  </br>
> * positionUpdated is vec3 variable </br>
> * you can use result (vec3) too that replaced by positionUpdated
> * you can use 'normal' attribute in this part too
 
method : Vertex_Befor_NormalUpdated(shaderPart:string):CustomMaterial
> shaderPart is Shader Structure append after normalUpdated is defined of the main function in vertex shader </br>
> usage : new CustomMaterial(...).Vertex_Befor_NormalUpdated('normalUpdated = normalUpdated;')  </br>
>       : new CustomMaterial(...).Vertex_Befor_NormalUpdated('result = normalUpdated   ;')  </br>
> * normalUpdated is vec3 variable </br>
> * you can use result (vec3) too that replaced by normalUpdated
> * you can use positionUpdated too in this part