Drawing Color Information object overlay

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On 06/09/2011 at 07:20, xxxxxxxx wrote:

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Hi there,

I am trying to write a plugin, that draws certain values (per vertex) over existing objects. I am not sure what the best way is to archive that. I could write a shader, but the information I want drawn is more a helper when modeling takes place.

The latest idea was to create a Tag similar to VertexMap or WeightMap. I am not sure, though, how to draw over the existing object with my own colors. Does anybody know, how Weight and VertexMap Tags do this? Is this actually possible from within a plugin?

Best
Timm

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 06/09/2011 at 07:35, xxxxxxxx wrote:

I'm interested in this as well.

If you choose to write a new Tag, then I guess you could draw the object yourself in the TagData->Draw() function. In this case however, you would also need to disable the drawing of the original object, and I don't know how that could be done.

Keep us updated on your progress!

Best regards
/Filip

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On 12/09/2011 at 06:08, xxxxxxxx wrote:

The vertexmap tag uses internal core functions. What you can do is to write your own scene hook and override the SceneHookData::DisplayControl, SceneHookData::InitDisplayControl SceneHookData::FreeDisplayControl functions. They allow to set object display mode and vertex colors.

cheers,
Matthias

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/09/2011 at 03:02, xxxxxxxx wrote:

Thanks, that helps a lot! For everybody else interested in this topic, I also found these two threads:

https://plugincafe.maxon.net/topic/5992/6110_drawing-color-information-object-overlay
https://plugincafe.maxon.net/topic/5636/5667_display-control

And on a similar topic: Is it also possible to override drawing altogether to allow for my own default shading algorithms? Like a chrome view mode, or Gooch?

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/09/2011 at 03:12, xxxxxxxx wrote:

Originally posted by xxxxxxxx

And on a similar topic: Is it also possible to override drawing altogether to allow for my own default shading algorithms? Like a chrome view mode, or Gooch?

Only through the EOGL library. Unfortunatly we can't provide documentation and support for the time being. If you feel brave you can take a look at the gl_test_object.cpp , gl_material.cpp , visualize_channel.cpp , VPInvertImage.cpp and vpstereo.cpp SDK examples though  🙂

The EOGL classes and structures reside within c4d_gl.h.

cheers,
Matthias