drawobject to exact size

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Mischa Spelt asked Oct 26 2016 at 1:27 PM Phil BoBo edited Oct 26 2016 at 5:48 PM

drawobject to exact size

Hi @phil.bobo and others,

I'd like to draw an object at an exact location with an exact size. Currently my code looks more or less like this:

drawtomodelscale( current );
fglPushMatrix();
fglTranslate( xPos, yPos, zPos );
fglScale( xSize, ySize, zSize );
fglRotate( 90, 1, 0, 0 );
drawobject( view, shapeIndex, textureIndex );
fglPopMatrix();

This works fine for a box, but as soon as I pass in, for example, the shape index of fs3d\FlowItem\Tote.3ds, things go horribly wrong. The reason seems to be that the dimension of the 3DS object is not 1 x 1 x 1. Is there a way to get drawobject to draw something that is exactly of dimensions xSize x ySize x zSize, either by telling drawobject to scale it to unit dimensions, or by getting the dimensions of the shape and scaling accordingly?

Thanks!

opengl 3ds drawobject

Answer 1 · 2016-10-26T16:46:00Z

Phil BoBo answered Oct 26 2016 at 4:46 PM Phil BoBo edited Oct 26 2016 at 5:48 PM

You can use the applyshapefactors() command to have the Engine set the offset nodes on an object, which you can use to size the object the way you want:

See the attached example model. (I didn't test a shape with offset rotations, but I think the code that is there should handle it correctly.)

shapefactors-example.fsm

shapefactors-example.png (258.7 KiB)

shapefactors-example.fsm (15.5 KiB)

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