Specifying Pass Parameters (Legacy 3DS MAX)

Pass

By default, all parameters go to the default pass. But you can specify different parameters for each pass.

Not all the parameters can be specified per pass. In fact, parameters like exportHint are global for the mesh and not pass specific.

Pass details

For each pass you can set:

• szShader to change the shader.

• State to change a state

• All the other user defined parameters (AnyOtherName) can be specified per pass.

• Skip the rendering of this pass.

By default, when a pass needs a parameter but cannot find it, it uses the parameters specified in the standard pass.

Pass_id

Use the string $SetPass pass_id to change the current pass.

Use the string $SkipPass pass_id to prevent this mesh being rendered in this pass.

The valid values for pass_id are:

• standard (default)

• dofhdrb

• csm

• shadowmap

• reflection

• silhouette

Code example

In the following example, the first parameters go to the standard pass, while after $SetPass dofhdrb they go to the dofhdrb pass.

At the end, we use SkipPass reflection to skip the rendering of this mesh in reflections.

exportHint = vColor, vUV1, mTextures

szShader = EngineLib|Txt|OpaqueClipmap

MaskClipValue = 0.12

$SetPass dofhdrb

state cullMode = standard

szShader = EngineLib|Txt|Opaque

$SkipPass reflection

Code example

You can also directly specify the standard pass or set the current pass multiple times.

exportHint = vColor, vUV1, mTextures

paramTest = 0.5 0.2 // will go to the standard pass

$SetPass dofhdrb

szShader = EngineLib|Txt|Opaque

paramTest = 0.1 0.7 // will go to the dofhdrb pass

paramTestHDR = 1 2 3 // will go to the dofhdrb pass

$SetPass standard

state cullMode = standard

szShader = EngineLib|Vc|Test

$SetPass dofhdrb

state cullMode = none