Ellipse Node
Description
Generates an ellipse shape based on input UV at the size specified by inputs Width and Height. The generated shape can be offset or tiled by connecting a Tiling And Offset Node. Note that in order to preserve the ability to offset the shape within the UV space the shape will not automatically repeat if tiled. To achieve a repeating dot effect first connect your input through a Fraction Node.
NOTE: This Node can only be used in the Fragment Shader Stage.
Ports
Name |
Direction |
Type |
Binding |
Description |
UV |
Input |
Vector 2 |
UV |
Input UV value |
Width |
Input |
Vector 1 |
None |
Ellipse width |
Height |
Input |
Vector 1 |
None |
Ellipse height |
Out |
Output |
Vector 1 |
None |
Output value |
Generated Code Example
The following example code represents one possible outcome of this node.
void Unity_Ellipse_float(float2 UV, float Width, float Height, out float4 Out)
{
float d = length((UV * 2 - 1) / float2(Width, Height));
Out = saturate((1 - d) / fwidth(d));
}
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