» Tutorial Effects - Pixelshader Preparations
This site relies heavily on Javascript. You should enable it if you want the full experience. Learn more.

Tutorial Effects - Pixelshader Preparations

Italian | Spanish | Mandarin | French | Japanese

TOC: Of Effects and Shaders
Next: Manipulating Colors


For all the pixelshader examples we are using the same basic patch setup featuring a 2x2 Grid (EX9.Geometry) and a FileTexture (EX9.Texture) connected to an effect and the renderers View Transform scaled by two so that the grid fills the whole view:

Instead of the Template node in the patch we always clone us a new effect as described on the effects page. Connect your newly cloned effect as shown in the patch and open the CodeEditor via a rightclick on the node. Then take the code below and replace it with the templates code as this one is even more simplified leaving out the vertexshader portions which we don't need for now.

//texture
texture Tex <string uiname="Texture";>;
sampler Samp = sampler_state    //sampler for doing the texture-lookup
{
    Texture   = (Tex);          //apply a texture to the sampler
    MipFilter = LINEAR;         //sampler states
    MinFilter = LINEAR;
    MagFilter = LINEAR;
};
 
//the data structure: "vertexshader to pixelshader"
//used as output data with the VS function
//and as input data with the PS function
struct vs2ps
{
    float4 Pos  : POSITION;
    float2 TexCd : TEXCOORD0;
};
 
float4 PS(vs2ps In): COLOR
{
    return 1;
}
 
technique TSimpleShader
{
    pass P0
    {
        VertexShader = null;
        PixelShader  = compile ps_2_0 PS();
    }
}

Press CTRL+S to save/compile the code. No errors should show up. If you get an error at this point make sure you really copied everything and your code in the editor looks exactly as pictured above.


Next: Manipulating Colors
TOC: Of Effects and Shaders

anonymous user login

Shoutbox

~6h ago

stulloyd: @dominikKoller my little brother works for them.

~5d ago

vasilis: @readme I already did this...but when I reopen my patch and make some changes I press save all..and then the same again. It opens 2

~5d ago

readme: vasilis, Alt+R in your vvvv instance, delete it from vvvv root, save. Otherwise vvvv loads up the patch by default.

~6d ago

vasilis: And even if I go in the root patch and delete them. when i save my patch again it duplicates.

~6d ago

vasilis: Anyone know why when I save my patch and close vvvv, when I try again to reopen it, it opens two patches (two the same)?

~6d ago

david: updated the berlin meetup log. Please correct names or missing stuff. berlin meetups 2018

~6d ago

david: join us today for our Berlin vvvv meetup 2-berlin-vvvv-meetup

~7d ago

eno: Updated open positions: http://nsynk.de/jobs