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0029519: Visualization, TKOpenGl - fallback to Graphic3d_TOSM_FACET from Gouraud/Phong when nodal normals are undefined

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kgv
2018-02-20 08:00:01 +03:00
committed by bugmaster
parent dc89236fee
commit db5d29de1c
3 changed files with 55 additions and 14 deletions
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dox/dev_guides/upgrade/upgrade.md
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@@ -1521,6 +1521,15 @@ Multiple changes have been applied to lights management within TKV3d and TKOpenG
Dedicated classes only hides visibility of unrelated light properties depending on its type.
* Calling V3d_Viewer::UpdateLights() is no more required after modifying light sources properties (color, position, etc.).
@subsection upgrade_730_shadingmodels Shading Models
*Graphic3d_AspectFillArea3d* has been extended by a new property ::ShadingModel(), which previously has been defined globally for entire View.
Previously, triangle array without normal vertex attributes was implicitly considered as unshaded,
but now such array will be shaded using *Graphic3d_TOSM_FACET* model (e.g. by computing per-triangle normals).
Therefore, *Graphic3d_TOSM_UNLIT* should be explicitly specified for disabling shading or triangles array.
Alternatively, material without reflectance properties can be used for disabling shading as before.
@subsection upgrade_730_tkopengl Custom low-level OpenGL elements
The following API changes should be considered while porting custom OpenGl_Element objects: