76 |
virtual float nonlinearity(const ZPt &p, float radius) const ATTR((pure)) = 0; |
virtual float nonlinearity(const ZPt &p, float radius) const ATTR((pure)) = 0; |
77 |
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78 |
/** Whether this transformation can be performed by OpenGL |
/** Whether this transformation can be performed by OpenGL |
79 |
* alone. If true, calling performGL allows the caller |
* alone by using the transformation matrix. |
80 |
|
* If true, calling performGL allows the caller |
81 |
* to use plain glVertex calls to place vertices using this |
* to use plain glVertex calls to place vertices using this |
82 |
* transform. |
* transform. |
83 |
*/ |
*/ |