shader-pipeline: How to append to a CVertexBuffer

[afuzzyllama]

I'm using the shader-pipeline branch and I've setup a vertex descriptor in my driver.

My descriptor looks like this:

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driver->getVertexDescriptor("custom")->addAttribute("inPosition", 3, irr::video::EVAS_POSITION, irr::video::EVAT_FLOAT);
driver->getVertexDescriptor("custom")->addAttribute("inNormal", 3, irr::video::EVAS_NORMAL, irr::video::EVAT_FLOAT);
driver->getVertexDescriptor("custom")->addAttribute("inColor", 4, irr::video::EVAS_COLOR, irr::video::EVAT_UBYTE);
driver->getVertexDescriptor("custom")->addAttribute("inTexCoord0", 2, irr::video::EVAS_TEXCOORD0, irr::video::EVAT_FLOAT);
driver->getVertexDescriptor("custom")->addAttribute("inCustom", 3, irr::video::EVAS_CUSTOM, irr::video::EVAT_FLOAT);
 

If I want to create a CVertexBuffer and append a vertex like this. There are two functions to do so:

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void addVertex(const T& vertex)
void addVertex(const void* vertex)
 

The template for me is irr::s32. I'm assuming I need to use the second function call. Is there a good example of how to do this in the code base or online?

[Nadro]

You can check how to add new vertices in loaders eg: CB3DMeshFileLoader.cpp:

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MeshBuffer->getVertexBuffer()->addVertex(&YourVertex);

Anyway you don't have to add vertex one by one. If you loaded mesh from a file, you can convert vertices format in this way:

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MeshManipulator->convertVertices<YourNewVertex>(MeshBuffer, VertexDescriptorRelatedToYourNewVertex, falseOrTrue);

When you have converted mesh you need to apply new values to new vertex attributes (at now one by one vertex).

BTW. You can't use just irr::s32 as specialisation in this case (vertex descriptor say that your vertex structure has more than one s32 value inside). Check S3DVertex.h how to define properly vertex format. In your example you should define following vertex structure:

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struct YourNewVertex
{
core::vector3df Pos; // inPosition
core::vector3df Normal; // inNormal
SColor Color; // inColor
core::vector2d<f32> TCoords; // inTexCoord0
core::vector3df Custom; // inCustom
};

[afuzzyllama]

Looking at your example, this makes sense. Thanks!