diff options
| -rw-r--r-- | o3d/plugin/idl/state.idl | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/o3d/plugin/idl/state.idl b/o3d/plugin/idl/state.idl index 9386208..af58559 100644 --- a/o3d/plugin/idl/state.idl +++ b/o3d/plugin/idl/state.idl @@ -190,8 +190,9 @@ namespace o3d { <tr><td>o3d.PointSpriteEnable</td><td>ParamBoolean</td> <td>default = false</td></tr> <tr><td>o3d.PointSize</td><td>ParamFloat</td><td>TBD</td></tr> - <tr><td>o3d.PolygonOffset1</td><td>ParamFloat<td>TBD</td></tr> - <tr><td>o3d.PolygonOffset2</td><td>ParamFloat<td>TBD</td></tr> + <tr><td>o3d.PolygonOffset1</td><td>ParamFloat, polygon offset slope factor<td>0</td></tr> + <tr><td>o3d.PolygonOffset2</td><td>ParamFloat, polygon offset bias (in + resolvable units)<td>0</td></tr> <tr><td>o3d.FillMode</td><td>ParamInteger, State.Fill</td> <td>default = State.SOLID</td></tr> <tr><td>o3d.ZEnable</td><td>ParamBoolean</td> @@ -262,6 +263,15 @@ namespace o3d { <td>default = State.BLEND_ADD</td></tr> </table> + Note: Polygon offset is computed with the following formula: + \code + totalOffset = PolygonOffset1 * slope + PolygonOffset2 * r + \endcode + Slope is the maximum difference in depth between 2 adjacent pixels of the + polygon. r is the smallest value that would fail the NOTEQUAL test against + 0. + Typical useful values to layer a polygon on top of another one are -1.0 for + each of PolygonOffset1 and PolygonOffset2. %] [nocpp, userglue] Param? GetStateParam(String state_name); |