Render primitive only in wireframe

[nestumkiller]

Hi!

I'm creating a bunch of primitives (GU_PrimPoly, GEO_PrimSphere, etc...), but I would like for them to be rendered only in wireframe (like a control SOP) independently of the current Shading Mode. Is there any flag I can set to render them like that?

Thanks

[sibarrick]

Isn't it just a case of not closing the primitives?

[nestumkiller]

Isn't it just a case of not closing the primitives?

In some cases yes, like drawing a line or a plane (just repeating the last point). But in the particular case of a GU_PrimSphere doesn't seem to work. I'm building a sphere like this:

        GU_PrimSphereParms params;
	params.gdp 		= gdp;
	params.xform 		= UT_DMatrix4::getIdentityMatrix();
	params.ppt = ppt;
	params.type = GEO_PATCH_ROWCOL;

	//
	// Represent the joint simply as a geo sphere
	//
	GEO_Primitive* prim = GU_PrimSphere::build( params );

On the params.type I've tried all cases but {GEO_PATCH_TRIANGLE, GEO_PATCH_QUADS}. There doesn't seem to be an option for "open". It makes sense since there is no such thing as an open sphere. When I toggle to wireframe mode I get 2 circles and a cross, which I would like to have all the time.

Any clues? I guess it's one of those Houdini "hidden" functions...

[edward]

Don't create primitive spheres then?

[sibarrick]

Don't create primitive spheres then?

Yeah, draw your spheres as 2 open poly circles

[nestumkiller]

Yeah, draw your spheres as 2 open poly circles

Thanks Just did it. I thought the actual primitives could have some render mode depending on the houdini shading... oh well... just had to lose a bit more time drawing circles.