Ambiera ForumDiscussions, Help and Support. |
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Hi Niko. At First i want to report some bugs that i discovered in CL3D.Vect3d. When you use addToThis(other) or just add(other) instead of adding a number it adds a string in the Y coordinate.For example if the first vector Y = 100 and the other vector Y = 0 instead of 100 it brings up 1000.And i think that's why in my previous post the object was disappearing when i was using SelSceneNode.Pos.addToThis(yourMovementDirection); And then i discovered and something else.When an object is rotated in an angle between >0 <90 and >270 <360 then the {Vect3d} substract(other) and {Vect3d} add(other) are not working right (The final position is not right).In all the other rotations they are working right. And finally my question of the day. How can i set a transparent material with colour in a cubenode? e.g // set material texture of the cube: cubenode.getMaterial(0).Tex1 = engine.getTextureManager().getTexture("crate_wood.jpg", true); How can i change this material to be a transparent red material? Thanks. |
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Hi, if you are supplying a string instead of a number to vect3d or any javascript function, of course something like this happens. But the function itself is ok, otherwise Copperlicht wouldn't work at all, it uses vect3d heavily in all parts of the engine. About the transparency question: There is no material like this in CopperLicht (yet), if you want something like this, simply write your own shader for this (see the shader tutorial). |
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I am not supplying a string i am giving a number.Here is the code var VectorToAdd = new CL3D.Vect3d (); VectorToAdd.normalize(); VectorToAdd.set(0,0,0); var NewPosAdd = TargetBBox.getCenter().add(VectorToAdd); alert (NewPosAdd); The TargetBBox.getCenter() is (100,100,100); The alert is 100, 1000, 100 Ok later i found that the Y is always a string for example the following SomeBoundingBoxDims=SomeSceneNode.getTransformedBoundingBox().getExtent(); Now if you add to the Y a number SomeBoundingBoxDims.Y=SomeBoundingBoxDims.Y+100; It gives the right result But if you add it like this SomeBoundingBoxDims.Y=SomeBoundingBoxDims.Y+SomeSceneNode.Pos.Y; It gives a string if you replace with this SomeBoundingBoxDims.Y=SomeBoundingBoxDims.Y+parseInt(SomeSceneNode.Pos.Y); It gives the right result !!!!!! This is not happening with X and Z And my question of the day. Can you give me an example on how to use CL3D.Material.EMT_TRANSPARENT_ADD_COLOR Transparent additive material, constant for using in Material.Type, specifying the type of the material. Thanks. |
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So somehow SomeSceneNode.Pos.Y was set to a string and not a number. Any chance this didn't happen somewhere in your code? I've tested this locally and read through the code, but everything seems to be correct. Maybe you could post a _complete_ example how to reproduce this, so I can verify this? About the material type: Works simple as this: someSceneNode.getMaterial(0).Type = CL3D.Material.EMT_TRANSPARENT_ADD_COLOR; |
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Thanks i'll come back with an example |
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Dear Niko Sorry. The mistake was in my code the Pos.Y was a string.But i didn't knew that you can set a string in an Objects Position.Normally it should alert an error in debugging.Sorry again. And my today's question is: Is there any possible way to make the CL3D.Line3d renderable? (Visible). It is very important for my project !!!!!!!!!!!!! And another thing Is this code right? var Plane=new CL3D.Plane3d() var point1= new CL3D.Vect3d(0,0,0); var point2= new CL3D.Vect3d(100,0,0); var point3= new CL3D.Vect3d(100,0,100); Plane.setPlaneFrom3Points(point1, point2, point3); engine.getScene().getRootSceneNode().addChild(Plane); Because i can't see the plane.Is it renderable or it's invisible like the Line3d? Thanks. |
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There is currently no way to render a 3d line, sorry. You could do this yourself by constructing some triangles, forming a line. Same with plane: It's just a mathematical construct. You have to use triangles and scene node to do do 3d drawing. |
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