Attribute Vector Math¶
Modify an attribute with a math operation.
The Attribute Vector Math Node.¶
Входы¶
- Geometry (геометрия)
Стандартный вход геометрии.
- A, B, C
The inputs to the math operations. Depending on the operation one, two, or all three of the inputs will be used. The attribute types are all vectors of three values, except for the Scale operation, where the second input uses a float type.
- Result (результат)
The name of the attribute where the computed result it stored. A new attribute with that name is added if it does not exist yet. If it does exist, the values of the existing attribute are overridden.
Свойства¶
- Операция
The math function to perform.
- Add
The sum of A and B.
- Subtract
The difference between A and B.
- Multiply
The entrywise product of A and B. \((A.x * B.x, A.y * B.y, A.z * B.z)\)
- Divide (деление)
The entrywise division of A by B. Division by zero results in zero. \((A.x / B.x, A.y / B.y, A.z / B.z)\)
- Cross Product
The cross product of A and B.
- Project
Проекция A на B.
- Reflect (отражение)
Отражение A вокруг нормали B. B не нужно нормализовать.
- Refract (преломление)
For a given incident vector A, surface normal B and ratio of indices of refraction (IOR) refract outputs the refraction vector R.
- Faceforward
Ориентирует вектор A так, чтобы он указывал от поверхности B, как определено его нормалью C. Вычисляется \((dot(B, C) < 0) ? A : -A\).
- Dot Product
The dot product of A and B.
- Distance (расстояние)
Расстояние между А и В.
- Length
The length of A.
- Scale (масштаб)
The result of multiplying A by the scalar input Scale.
- Нормализовать
The result of normalizing A.
- Wrap
Wrap.
- Snap
Результат округления A до наибольшего целого числа, кратного B, меньшего или равного A.
- Floor
The entrywise floor of A.
- Ceil
The entrywise ceiling of A.
- Modulo
The entrywise modulo of A by B.
- Fraction
The fractional part of A.
- Absolute
The entrywise absolute value of A.
- Minimum (минимум)
The entrywise minimum from A and B.
- Maximum (максимум)
The entrywise maximum from A and B.
- Sine
The entrywise Sine of A.
- Cosine
The entrywise Cosine of A.
- Tangent
The entrywise Tangent of A.
Примечание
Attributes are converted implicitly to the input data type.
- A, B, C
- Attribute
A text field to input an attribute name.
- Vector
The input is a vector of three float numbers.
Output (выход)¶
- Geometry (геометрия)
Стандартный выход геометрии.
Пример¶
Here are nodes to move points along the normals of a mesh or points from the Point Distribute node. First the normal attribute is moved to the Point domain. Then it is normalized, the length is changed, and it is added to the position. The Factor input could instead be an attribute to vary the displacement per point.
