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jstone-lucasfilm merged 1 commit into from
Jan 6, 2026
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Improvements to convert node tables #2740

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65 changes: 31 additions & 34 deletions documents/Specification/MaterialX.StandardNodes.md
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Expand Up @@ -2105,40 +2105,37 @@ The valid range for `index` should be clamped to $[0,N)$ in the user interface,
### `convert`
Convert a stream from one data type to another.

|Port |Description |Type |Default |
|-----|-----------------------------------------------|-------|--------|
|`in` |The input stream to convert |boolean|false |
|`out`|Output: the converted value, either 0.0 or 1.0 |float |0.0 |

|Port |Description |Type |Default |
|-----|-----------------------------------------------|-------|--------|
|`in` |The input stream to convert |integer|0 |
|`out`|Output: the converted value |float |0.0 |

|Port |Description |Type |Default |
|-----|-----------------------------------------------|-------|--------|
|`in` |The input stream to convert |boolean|false |
|`out`|Output: the converted value, either 0 or 1 |integer|0 |

|Port |Description |Type |Default |
|-----|-----------------------------------------------|-------|--------|
|`in` |The input stream to convert |integer|0 |
|`out`|Output: true for any non-zero input value |boolean|false |

|Port |Description |Type |Default |
|-----|-----------------------------------------------|--------------|--------|
|`in` |The input stream to convert |float,integer |__zero__|
|`out`|Output: copy input value to all channels |colorN,vectorN|__zero__|

|Port |Description |Type |Default |
|-----|--------------------------------------------------|--------------|--------|
|`in` |The input stream to convert |boolean |false |
|`out`|Output: 1 in all channels if `in`=true, 0 if false|colorN,vectorN|__zero__|

|Port |Description |Type |Default |
|-----|-----------------------------|--------------|--------|
|`in` |The input stream to convert |colorN,vectorN|__zero__|
|`out`|Output: see below |colorM,vectorM|__zero__|
|Port |Description |Type |Default |
|-----|---------------------------|---------------|--------|
|`in` |The input stream to convert|boolean |false |
|`out`|Output: the converted value|float, integer |__zero__|

|Port |Description |Type |Default|
|-----|-----------------------------------------|-------|-------|
|`in` |The input stream to convert |integer|0 |
|`out`|Output: true for any non-zero input value|boolean|false |

|Port |Description |Type |Default|
|-----|---------------------------|-------|-------|
|`in` |The input stream to convert|integer|0 |
|`out`|Output: the converted value|float |0.0 |

|Port |Description |Type |Default |
|-----|----------------------------------------|-----------------------|--------|
|`in` |The input stream to convert |boolean, float, integer|__zero__|
|`out`|Output: copy input value to all channels|colorN, vectorN |__zero__|

|Port |Description |Type |Default |
|-----|---------------------------|---------------|--------|
|`in` |The input stream to convert|colorN, vectorN|__zero__|
|`out`|Output: see below |colorM, vectorM|__zero__|

|Port |Description |Type |Default |
|-----|-----------------------------------------------------------------|----------------------------------------|--------|
|`in` |The input stream to convert |boolean, integer, float, colorN, vectorN|__zero__|
|`out`|Output: an unlit surface shader emitting the input value as color|surfaceshader | |

For boolean input values, all numeric output values will be either __zero__ or __one__.

For colorN/vectorN to colorM/vectorM:

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