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11-20-2006, 21:31 cclad Joined on 02-01-2006 Posts 125 dark softedge (edgeblending) I've tried on several setups of softedge function in Remote Shape tool and I found, that grandients of softedge isn't right, because in places where image is overlayed are dark strips (about 15% darker, most in the middle). it seems that gradient haven't right value, coresponding to other side. can you repair it? feature request::: can you make gradient contorable by two point bezier curve?    Report

11-22-2006, 8:36 Christian Schmidt Joined on 05-16-2005 Dubai, U.A.E. Posts 289 Re: dark softedge (edgeblending) Attachment: ShapeAlphaAdjust.vza hi cclad, we could recreate your problem. The gradients calculated depend on size and tesselation of the softedge. In some cases the gradient works as it should in others the alpha values are not matching up. Three are two solutions for the problem. First, you can immediately use the technique used in the attached scene (It requires Professional Edition R3.7). It uses as second texture to adjust the alpha values of the softedge gradient on a pixel basis. You can decrease the softedge alpha with that. The other solution is implemented in the upcoming Release 3.8. We added two additional controls for each softedge in the Remote Shape Tool. You can adjust the minimum and maximum alpha values for each softedge gradient with it. A two-point bezier curve is not planned at the moment. Both techniques used together will offer you a lot of possibilities to adjust the softedging. Chris    Report

01-31-2007, 11:20 cclad Joined on 02-01-2006 Posts 125 Re: dark softedge (edgeblending) both of this solutions aren't useful because it affects alpha of all object inside each screen. and result is never seamless, it have hard edge in lower gradient. please make something with that immadietly, edgeblending was one of the most important feature when we was buying ventuz and now we see it's still not usable... edgeblending it's fake feature in ventuz now. sorry...    Report

01-31-2007, 14:42 Christian Schmidt Joined on 05-16-2005 Dubai, U.A.E. Posts 289 Re: dark softedge (edgeblending) Attachment: screenShapeAlpha.zip Hi cclad, we are sorry you are still not getting the results you expect. Screen Shaping by the way does not affect the alpha values of elements in your scene, it only changes the alpha value of the Shape Surface. Here are some more tips to help you adjust the EdgeBlending. The graphic "screenShapeAlpha.jpg" showing various ways you can adjust the alpha values. You can either adjust the alpha values of the Shape geoemtry in the Remote Shape Tool and by tweaking the alpha values of the Texture used on the Shape geometry. Depending on which SoftEdge size and tesselation you enter in the Remote Shape Tool you might not have to adjust the Texture Alpha at all. It seems that in your case you have to. There are now two thing you can do to get a good SoftEdge. Adjust the Texture alpha value or adjust the Content itself. First lets start by adjusting the Texture alpha. In the example scene I posted before, the Constant Alpha was added to the base alpha value defined by the Remote Shape Tool. This is like increasing the gain of the alpha and will result in a hard edge at the "lower gradient" (as you call it). To avoid the hard edge you have at this "lower gradient" do not increase the overall gain, but use a AddMultiply setting. Multiplying the alpha value will keep the lower gradient at zero. Take a look at the scene "edgeBlendingAdjust.vza" I attached to this post and adjust the value of the "AddMultiplyAlphaAdjustR" node. You can also adjust the content to get the desired edge/blending. First, define the SoftEdge in the Remote Shape Tool. Then move the projection on top of the other one until you have a constant alpha. Then move the content by adjusting the mapping coordinates of the Render Target Texture until the images matches up again. Take another look at the scene I attached. In the annotation it is explained how this works. The three images "screenShapeMapping01.jpg", "screenShapeMapping02.jpg" and "screenShapeMapping03.jpg" explain how this works. You can of course use combinations of all these methods to get a correct EdgeBlend. Let me know if you have additional questions. By the way, you need Ventuz R4.1 in order to open the scene. Chris    Report

11-18-2007, 18:16 cclad Joined on 02-01-2006 Posts 125 Re: dark softedge (edgeblending) Hello ventuz, we are doing lots of presentations with edgeblending and our customers are almost always not satisfied with Ventuz edgeblending. I have to always say its almost perfect, but I cannot do more. I need to set gradient of edgeblending different way - not linear. I dont know where is problem, why you cant implement there more tools for it. gradient is made on part of rectangle with tessalation (I use 10). Why is not possible to set on every tessalation column different alpha to make my own, nonlinear gradient? setting of this thrue bezier line its only user friendly... I've seen this on different edgeblending solutions and i know its possible to make perfect invisible edgeblending... please, try to understand us and implement it there, its lots of things possible to do with ventuz and its very bad when final output for customers isn't perfect. bye clad    Report

11-20-2007, 9:30 chriss0212 Joined on 03-21-2006 Düsseldorf/ Germany Posts 297 Re: dark softedge (edgeblending) hi clad, i vote for the bezier curve like the dataton watchout solution. greetz chriss ...........and don't give up :-)    Report

11-20-2007, 11:06 cclad Joined on 02-01-2006 Posts 125 Re: dark softedge (edgeblending) thank you, I thought I'm alone in this... I saw it on Analogway Deventix. bye clad    Report

11-20-2007, 23:38 chriss0212 Joined on 03-21-2006 Düsseldorf/ Germany Posts 297 Re: dark softedge (edgeblending) hi clad, no you are not alone :-)........but as an encore operator i have to say with this blue machines you are alone :-) greetz chriss ...........and don't give up :-)    Report

11-23-2007, 12:04 cclad Joined on 02-01-2006 Posts 125 Re: dark softedge (edgeblending) we are celebrating ONE YEAR of BAD EDGEBLENDING in Ventuz. sorry guys, but you cant ignore this problem.    Report

11-24-2007, 0:44 chriss0212 Joined on 03-21-2006 Düsseldorf/ Germany Posts 297 Re: dark softedge (edgeblending) hi clad i agree that this feature is important and especialy if ventuz offers this feature official, but as long this is not working perfect: i use if i dont warp mostly the blending of the projectors ore the folsom encore and if i need to warp i use the folsom screen shaper or the new Christie CINE-IPM2K-TWIST which supports full hd in the inputs that means hat i think that the warping is also not perfect because it is no possible to ad points later in the adjustment greetz chriss ...........and don't give up :-)    Report