https://sourceforge.net/p/blendlink/wiki/Home/Recent changes to HomeenTue, 04 Jun 2019 20:26:41 -0000https://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v69 +++ v70 @@ -55,7 +55,7 @@ We devised a re-meshing facility in BlenderLink so that it is possible to specify some conditions about precision of the approximating surface. In this re-meshing process, our algorithm builds, adaptively, an appropriate triangulation where some approximation creterium is met. One implemented option is to ask that no edge is longer than a specified maximum length. Another option is to ask for a surface is within a certain tolerance from the theoretical surface. We call this re-meshing process the* Refinement Process* (RP). Parameters that control the RP are organized into two lists. One listi is made up made up of integers that we will call SWITCHes. The other list is made up of floating numbers. We will call them PARAMs. SWITCH list has four elements PARAM has three. -The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. +The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. PipBlender is another addon working with BlendBridge. **If you want to try PipBlender with Sverchok to install scipy follow the web presentation** [here ](https://pipblender.sourceforge.io/Pip Blender/HTML5/). To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose **Refine** switch is checked, is executed. Another couple of parameters can control the refinement process. They are available in another addon nodes developed in the **MeshServices** project available [here](https://meshservices-for-blendlink.sourceforge.io). Using MeshServices node called **MeshConnector** you can control the number of refinement steps to be executed before delivering a refined mesh. In this case the algorithm stops even if the defined stopping criteria are not met. This is particularly handy since the RP tend to be rather CPU consuming. The second parameter available in the**MeshConnector** node implements a Feedback facility. Using this we can ask the RP to re-start refining from the last, most refined, delivered mesh. </pre> </div>TWINGSISTERTue, 04 Jun 2019 20:26:41 -0000https://sourceforge.net7a31255e9e3ebdeae1609a76ecef0f7ff5db5ffbhttps://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v68 +++ v69 @@ -14,6 +14,7 @@ # Fifth step: install BlendLink and test it If you have reached this you now must be able to install an addon form the TWINGSISTER collection. So please download and install the addon contained in the BlendLink.zip file [Here](https://sourceforge.net/projects/blendlink/files/BlendLink.zip). **For Sverchock users** +You can find [here ](https://blendlink.sourceforge.io/BlendLink/) **a web tutorial for this **(works only with Blender 2.80). If you are using Swerchok you can download the .json file [Here](http://sourceforge.net/projects/blendlink/files/Examples/s1-sample-torus-with-u-v-map/). Import this as you have learnt in the previous steps. During this import some error messages will come up. They simply say that a definition for the surface is missing and that no color/texture definition is given. That's true, simply skip this errors clicking on it and then on the screen. **For Animation Nodes users** Animation Nodes users need to build a node tree around the BlendLink node to display its output and, when the node tree is ready, they must click into the Execute Node Tree button in the Animation Nodes panel. An exa The procedure is similar to the one lister [here](https://sourceforge.net/p/color-quadrics/wiki/Home/). In Particular we have simply to adapt what is in this figure  </pre> </div>TWINGSISTERSun, 02 Jun 2019 07:55:51 -0000https://sourceforge.net8e4ca890b8be416ae793278971b016edb9ec72fahttps://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v67 +++ v68 @@ -55,7 +55,7 @@ some approximation creterium is met. One implemented option is to ask that no edge is longer than a specified maximum length. Another option is to ask for a surface is within a certain tolerance from the theoretical surface. We call this re-meshing process the* Refinement Process* (RP). Parameters that control the RP are organized into two lists. One listi is made up made up of integers that we will call SWITCHes. The other list is made up of floating numbers. We will call them PARAMs. SWITCH list has four elements PARAM has three. The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. -To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose **Refine** switch is checked, is executed. Another couple of parameters can control the refinement process. They are available in another addon nodes developed in the **MeshServices** project available here. Using MeshServices node called **MeshConnector** you can control the number of refinement steps to be executed before delivering a refined mesh. In this case the algorithm stops even if the defined stopping criteria are not met. This is particularly handy since the RP tend to be rather CPU consuming. The second parameter available in the**MeshConnector** node implements a Feedback facility. +To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose **Refine** switch is checked, is executed. Another couple of parameters can control the refinement process. They are available in another addon nodes developed in the **MeshServices** project available [here](https://meshservices-for-blendlink.sourceforge.io). Using MeshServices node called **MeshConnector** you can control the number of refinement steps to be executed before delivering a refined mesh. In this case the algorithm stops even if the defined stopping criteria are not met. This is particularly handy since the RP tend to be rather CPU consuming. The second parameter available in the**MeshConnector** node implements a Feedback facility. Using this we can ask the RP to re-start refining from the last, most refined, delivered mesh. Execution and stopping condition are controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, </pre> </div>TWINGSISTERFri, 01 Jun 2018 06:13:26 -0000https://sourceforge.netfc9a61b0227e7972e3254c73280cbd1f44a96392https://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v66 +++ v67 @@ -55,8 +55,10 @@ some approximation creterium is met. One implemented option is to ask that no edge is longer than a specified maximum length. Another option is to ask for a surface is within a certain tolerance from the theoretical surface. We call this re-meshing process the* Refinement Process* (RP). Parameters that control the RP are organized into two lists. One listi is made up made up of integers that we will call SWITCHes. The other list is made up of floating numbers. We will call them PARAMs. SWITCH list has four elements PARAM has three. The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. -To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose Refine switch is checked, is executed. -Execution is controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, +To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose **Refine** switch is checked, is executed. Another couple of parameters can control the refinement process. They are available in another addon nodes developed in the **MeshServices** project available here. Using MeshServices node called **MeshConnector** you can control the number of refinement steps to be executed before delivering a refined mesh. In this case the algorithm stops even if the defined stopping criteria are not met. This is particularly handy since the RP tend to be rather CPU consuming. The second parameter available in the**MeshConnector** node implements a Feedback facility. +Using this we can ask the RP to re-start refining from the last, most refined, delivered mesh. + +Execution and stopping condition are controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. Our solution introduce more triangle when the surface curvature increases. Figure below shows this behaviour compared with a uniform triangulation  On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. Figure below shows a particular of a refined surface where triangles in the plane portion of the surface (on the left) are not not refined at all  A more detailed discussion of the RP implemented in BlendLink is discussed in this report. </pre> </div>TWINGSISTERFri, 01 Jun 2018 05:58:04 -0000https://sourceforge.net360a7a08dd556e033af0e03e3eb65976e17d2612https://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v65 +++ v66 @@ -58,7 +58,7 @@ To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose Refine switch is checked, is executed. Execution is controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. Our solution introduce more triangle when the surface curvature increases. Figure below shows this behaviour compared with a uniform triangulation  -On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. Figure below shows a particular of a refined surface where triangles in the plane portion of the surface (on the left) are not not refined at all  A more detailed discussion of the possible solutions implemented in BlendLink is discussed in this report. +On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. Figure below shows a particular of a refined surface where triangles in the plane portion of the surface (on the left) are not not refined at all  A more detailed discussion of the RP implemented in BlendLink is discussed in this report. The wiki uses [Markdown](/p/color-quadrics/wiki/markdown_syntax/) syntax. [[members limit=20]] </pre> </div>TWINGSISTERFri, 18 May 2018 20:10:49 -0000https://sourceforge.netff95572e7781f696ddad48080e2b030a6e29526ahttps://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v64 +++ v65 @@ -57,7 +57,8 @@ The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose Refine switch is checked, is executed. Execution is controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, -The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. Our solution introduce more triangle when the surface curvature increases. Figure below shows this behaviour compared with a uniform triangulation  On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. Figure below shows a particular of a refined surface where triangles in the plane portion of the surface are not not refined at all . A more detailed discussion of the possible solutions implemented in BlendLink is discussed in this report. +The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. Our solution introduce more triangle when the surface curvature increases. Figure below shows this behaviour compared with a uniform triangulation  +On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. Figure below shows a particular of a refined surface where triangles in the plane portion of the surface (on the left) are not not refined at all  A more detailed discussion of the possible solutions implemented in BlendLink is discussed in this report. The wiki uses [Markdown](/p/color-quadrics/wiki/markdown_syntax/) syntax. [[members limit=20]] </pre> </div>TWINGSISTERFri, 18 May 2018 20:09:41 -0000https://sourceforge.netb05aba8b5f3db75d5945f5d10a1f9fa733f4ca4bhttps://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v63 +++ v64 @@ -57,7 +57,7 @@ The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose Refine switch is checked, is executed. Execution is controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, -The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. A more detailed discussion of the possible solutions implemented in BlendLink is discussed in this report. +The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. Our solution introduce more triangle when the surface curvature increases. Figure below shows this behaviour compared with a uniform triangulation  On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. Figure below shows a particular of a refined surface where triangles in the plane portion of the surface are not not refined at all . A more detailed discussion of the possible solutions implemented in BlendLink is discussed in this report. The wiki uses [Markdown](/p/color-quadrics/wiki/markdown_syntax/) syntax. [[members limit=20]] </pre> </div>TWINGSISTERFri, 18 May 2018 20:07:17 -0000https://sourceforge.netaf86640dd31e56d0d158e3904ea4e7350a9b1491https://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v62 +++ v63 @@ -57,7 +57,7 @@ The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose Refine switch is checked, is executed. Execution is controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, -The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. +The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. [This](https://sourceforge.net/projects/blendlink/files/Examples/RefinementExamples/) folder contains some examples of parametric surfaces obtained by RP. The RP can generate accurate and compact approximation of parametric surfaces. The standard genration of a parametric surface has some issues. Some mathematical formulas gives parametrizations that tend to produce non uniform meshes when points are generated by the application of the x(u,v), y(u,v), z(u,v) functions onto a uniform grid in the u,v space. On the other hand sometimes lots of triangles are used to triangulate nearly flat regions of the surface. A more detailed discussion of the possible solutions implemented in BlendLink is discussed in this report. The wiki uses [Markdown](/p/color-quadrics/wiki/markdown_syntax/) syntax. [[members limit=20]] </pre> </div>TWINGSISTERFri, 18 May 2018 18:33:23 -0000https://sourceforge.net98923bbb555550bfe913999104882f2ef19f2b2bhttps://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre>--- v61 +++ v62 @@ -51,11 +51,14 @@ Many others comes in this site. The Python code (you have to read in the BlendLink node to get them) is available [here](https://sourceforge.net/projects/blendlink/files/Examples/) for free. After you get the surface in Blender you can save them in several 3D formats. Not all formats retain texture or colors. If you simply want the see the model and are not interested in modifying it, then consider that some saved surfaces are on sale for fundraising at Turbosquid. Simply Google for Turbosquid Twingsister or put Twingsister into Turbosquid search bar to see them. # The Refinement Process -We devised a re-meshing facility in BlenderLink so thar it is possible to specify some conditions about the maximum edge size. In this re-meshing process, our algorithm builds, adaptively, an appropriate triangulation where no edge is longer than a specified maximum length. We call this process the* Refinement Process*. -Parameters that control the Refinement Proces are organized in two lists. One made up made up of integers that we will call SWITCH and another , made up of floating real numbers, that we will call PARAM. SWITCH list has four elements -The refinement process starts every time that a BlendLink node is executed in Blender when the Refine switch is checked. -Execution is controlled by the PARAM and SWITCH parameters. For these are used the lists that are present at the RefineSwitch and RefineParam inputs. -If these inputs are not connected default values are used, The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document, +We devised a re-meshing facility in BlenderLink so that it is possible to specify some conditions about precision of the approximating surface. In this re-meshing process, our algorithm builds, adaptively, an appropriate triangulation where +some approximation creterium is met. One implemented option is to ask that no edge is longer than a specified maximum length. Another option is to ask for a surface is within a certain tolerance from the theoretical surface. We call this re-meshing process the* Refinement Process* (RP). +Parameters that control the RP are organized into two lists. One listi is made up made up of integers that we will call SWITCHes. The other list is made up of floating numbers. We will call them PARAMs. SWITCH list has four elements PARAM has three. +The effect of the PARAM parameters and of the SWITCH switches are detailed in [this](https://sourceforge.net/projects/blendlink/files/parameters.docx) document. The RP uses three different algorithm that can be selected with an appropriate choice of SWITCHes. A couple of the (the ENVELOPE and NGON algorithms) works if in Blender if and only it you have installed the package scipy in Blender Python. Please Google for PipBlender to find help on how to install python packages in Blender. +To enable RP you have to check the Refine switch. The refinement process starts every time a BlendLink node, whose Refine switch is checked, is executed. +Execution is controlled by the PARAM and SWITCH parameters. The node performing a RP uses PARAMs and SWITCHes that are linked to the RefineSwitch and RefineParam inputs. If these inputs are not connected, default values are used, +The RP is implemented in Python and has received little engineering so re-meshing time, althought linear in the output size, could be rather long. + The wiki uses [Markdown](/p/color-quadrics/wiki/markdown_syntax/) syntax. [[members limit=20]] [[download_button]] </pre> </div>TWINGSISTERFri, 18 May 2018 18:18:24 -0000https://sourceforge.net821c55091ce55b5ae86fbc2b17b8558be1f60269https://sourceforge.net/p/blendlink/wiki/Home/<div class="markdown_content"><pre></pre> </div>TWINGSISTERWed, 16 May 2018 15:51:15 -0000https://sourceforge.net1476d0020b5e110caca28b01d7de14867f8d29ac