Text to shader

[Gallardo9944]

Hello.

I've been searching for a while and still can't understand the way of drawing a text with an ability to rotate it left or right. Basically, the only thing I've found is that I have to use a shader for that. Unfortunately, I dunno anything particular about drawing stuff with shaders. Is there an ability to draw a text with an .fx shader? I've also read that I could use "DxDrawMaterialLine3D" for that, so if that's also possible, I'd really appriciate an example of drawing rotated texts with that.

Thanks in advance.

[arezu]

  
-- The client script. Add  in meta 
local text = "This text is going to rotate..." 
local fontScale, font = 2.0, "default-bold" 
  
local renderTarget = dxCreateRenderTarget(dxGetTextWidth(text:gsub("#%x%x%x%x%x%x", ""), fontScale, font), dxGetFontHeight(fontScale, font), true) 
local shader = dxCreateShader("textureReplace.fx") 
  
function updateRenderTarget() 
    dxSetRenderTarget(renderTarget, true) 
    dxDrawText(text, 0, 0, 0, 0, tocolor(255, 255, 255, 255), fontScale, font) 
    dxSetRenderTarget() 
    dxSetShaderValue(shader, "tex", renderTarget) 
end 
updateRenderTarget() 
  
addEventHandler("onClientRestore", root, 
function() 
     updateRenderTarget() 
end) 
  
addEventHandler("onClientRender", root, 
function() 
    dxSetShaderTransform(shader, 45, 0, 0) -- This is where the shader is rotated 
    local width, height = dxGetMaterialSize(renderTarget) 
    dxDrawImage(200, 200, width, height, shader) 
end) 
  

  
//textureReplace.fx shader file. Add this in meta as <file src="textureReplace.fx" /> 
texture tex; 
  
technique tech 
{ 
    pass p0 
    { 
        Texture[0] = tex; 
    } 
} 
  

Code not tested.

If the quality looks bad, you can take a look at

dxSetBlendMode 

Edited May 1, 2014 by Guest

[Gallardo9944]

Great thanks, Arezu. The code worked just perfectly, but you also needed to add "updateRenderTarget()" to make it actually draw the text, not a white rectangle.

[arezu]

Yeah, I forgot that ^^. Updated the code in case somebody else needs it.