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0027735: Visualization, OpenGl_ShaderManager - fix clipping state management

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OpenGl_CappingAlgo::RenderCapping() now updates clipping state in Shader Manager.
OpenGl_View::render() clipping state setup has been moved to OpenGl_View::renderScene().

OpenGl_ShaderManager now converts position to homogeneous coordinates within clipping code GLSL.
This fixes capping plane rendering with clipping planes applied.

Fixed possible Clipping planes misconfiguration when FFP is used;
error-prone OpenGl_Clipping::AddWorldLazy() method has been dropped.
This commit is contained in:
kgv
2016-08-05 20:58:13 +03:00
committed by bugmaster
parent c58b1b6257
commit deb02f8655
7 changed files with 31 additions and 49 deletions
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src/OpenGl/OpenGl_ShaderManager.cxx
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@@ -228,7 +228,7 @@ const char THE_FRAG_CLIP_PLANES[] =
EOL" int aClipSpace = occClipPlaneSpaces[aPlaneIter];"
EOL" if (aClipSpace == OccEquationCoords_World)"
EOL" {"
EOL" if (dot (aClipEquation.xyz, PositionWorld.xyz) + aClipEquation.w < 0.0)"
EOL" if (dot (aClipEquation.xyz, PositionWorld.xyz / PositionWorld.w) + aClipEquation.w < 0.0)"
EOL" {"
EOL" discard;"
EOL" }"