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dxSetShaderValue

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Server-side
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This sets a named parameter for a shader element

Important

It's enough to set the texture only once if it's a render target

OOP Syntax Help! I don't understand this!

  • Method: shader:setValue(...)

Syntax

bool dxSetShaderValue ( element theShader, string parameterName, mixed value )
Required Arguments
  • theShader: The shader element whose parameter is to be changed
  • parameterName: The name of parameter
  • value: The value to set, which can be a texture , a bool, a number or a list of numbers( max 16 floats(numbers) )

Returns

  • bool: value

Returns true if the shader element's parameter was successfully changed, false otherwise.

Code Examples

shared 
myShader = dxCreateShader( "hello.fx" )
myTexture = dxCreateTexture( "man.png" )
dxSetShaderValue( myShader, "texture0", myTexture )                -- Set a texture
dxSetShaderValue( myShader, "bShowThing", true )                  -- Set a bool
dxSetShaderValue( myShader, "speed", 2.4 )                        -- Set a float
dxSetShaderValue( myShader, "positionOfCheese", 100, 200, 300 )   -- Set a list of numbers, with max 16 numbers. Btw, this is a float: 3.4. This can be used to fill an array in HLSL.

See Also

Drawing Functions
Drawing Elements
Reference