Activity for GLScene
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Sergio posted a comment on discussion Open Discussion
OK
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Hi and thanks Pavel. Easy after we know how. Know I know. This weekend I will sit down through the code. Just after I will write you. I think mre ahead I will give suggestionsWrite you soon
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Pavel Vassiliev posted a comment on discussion Open Discussion
sf don't want to change the new image with the same name.
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Hi Sergio, you can simply clone the git repository https://gitverse.ru/glscene/AstrobloQ to your comp, e.g. in the d:\AstrobloQ.git folder, but make changes in another working folder d:\AstrobloQ. Then use BeyondCompare 4 to make patches. You can work on different projects separately without need to make branches, that only complicates the development. Add autogeneration of habitat, relief, seas, climate and weather depending on the type and parameters of exoplanets (change flora and fauna, the NASA...
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Hi Sergio, you can simply clone the git repository https://gitverse.ru/glscene/AstrobloQ to your comp, e.g. in the d:\AstrobloQ.git folder, but make changes in another working folder d:\AstrobloQ. Then use BeyondCompare 4 to make patches. You can work on different projects separately without need to make branches, that only complicates the development. Add autogeneration of habitat, relief, seas, climate and weather depending on the type and parameters of exoplanets (change flora and fauna, the NASA...
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Hi Sergio, you can simply clone the git repository https://gitverse.ru/glscene/AstrobloQ to your comp, e.g. in the d:\AstrobloQ.git folder, but make changes in another working folder d:\AstrobloQ. Then use BeyondCompare 4 to make patches. You can work on different projects separately without need to make branches, that only complicates the development. Add autogeneration of habitat, relief, seas, climate and weather depending on the type and parameters of exoplanets (change flora and fauna, the NASA...
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Hi Pavel. I will download and install . I am ready to collaborate. I am trying to find the GREEN BUTTON <> to download the complet stuff in the link in Russian . Even with Google translator I did not find. Which button is ? About the code to simulate waves, I do not have any. In that my code I am trying to use someone which is ready to use; The one Omar showed is great but not GLscene.. I need something that I can use inside my GLScene code
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Hi Pavel. I will download and install . I am ready to collaborate. I am trying to find the button to download the comple stuff in the link (in Russian) . Even with Google translator I did not find. Which button is ? About the code to simulate waves, I do not have any. In that my code I am trying to use someone which is ready to use; The one Omar showed is great but not GLscene.. I need something that I can use inside my GLScene code
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Sergio, do you have a code to simulate sea waves on a sphere, the surface of an exoplanet, with a sailboat and other ships navigation? I am looking for delphi programmers to further development of the Biosphere and be included in the GalaxyMW team - https://gitverse.ru/glscene/AstrobloQ , the simulator of galaxy habitability and communications.
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Omar, I remember you had a good app called Funny Planet. Does it have waves and a sailboat floating on the surface of the planet? I have an app in development called Biosphere, based on an old version of Dave Kerr's AI Planet, it really needs sea waves on the surface of a free form planet with sailboats and other ships. A fleet in the technosphere of terrestrial exoplanet. Portuguese language support can be added to the ..AstrobloQ\locale\pt\ LC_MESSAGES\galaktika.mo file for Brazilian users. But...
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Hello Omar. Very useful information. I am studying the possibilities. In this moment I think the best for me will be to try to do what I need inside GLScene, even not so well as in your demo. Actualy in my case the "wind forces " are not the key. I think I will be able to do what I need . Will post something in the near future. I understood well your explanation. I do not want to go using CFD. It is more powerful than I need. By this reason I developed my simpler engineering software SwitchgearDesign...
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omar modified a comment on discussion Open Discussion
note that SailboatDemo is not a GLScene app. It uses Firemonkey 3D platform. On fmx 3d there is no dedicated UI interface for the 3d scene. 3D objects are part of form components ( 3d viewport childs). FMX 3d platform dev seems to be slow. A few projects use it, from what I see. One exception is GBE3D by Grégory Bersegeay, a set of components including dynamic grids like the wave surface. On the sail model on OPYC app, I used formulas similar to "thin airfoil theory" to calculate each sail segment...
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note that SailboatDemo is not a GLScene app. It uses Firemonkey 3D platform. On fmx 3d there is no dedicated UI interface for the 3d scene. 3D objects are part of form components ( 3d viewport childs). FMX 3d platform dev seems to be slow. A few projects use it, from what I see. One exception is GBE3D by Grégory Bersegeay, a set of components including dynamic grids like the wave surface. On the sail model on OPYC app, I used formulas similar to "thin airfoil theory" to calculate each sail segment...
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Hi Pavel. Thank you very much. So easy to read the comtents with the debugger. I did not think on this. In the past I learned to create meshes in the code like the attached but never study properly how to go from 3D models in Blender or Freecad and convert them to meshes to import from GLScene (more or less like in IntensityMesh demo). Now I will go deep to do this . Soon I will post a demo and ask more questions.
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Sergio, you can look at the data in the debugger and make sure there are no Japanese symbols. You can re-save this data there to a text CSV file. Again, this is like an isosurface (2D to 3D), and the real volumetric 3D data are voxels, which are usually processed to build isosurfaces using the marching cubes algorithm. Perhaps in your case it will be enough to use only a model of a thin-walled ship structure, but usually, for an accurate calculation of stresses and strength, a volumetric model with...
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JPH posted a comment on discussion Open Discussion
Thanks
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I never understood well the use of .data files to use in the MeshObjects. Now I am trying to learn about. My IntensityMesh demo is working correctly, I tried to read what is inside the IntensityMesh.data file using notepad. I imagine that we have there a cloud of points with the coordinates, colours, etc. It took some time and after I could read a text with Japanese symbols. I remember that in the past I could see the data inside this same file in understandable letters. FIRST QUESTION: is there...
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I never understood well the use of .data files to use in the MeshObjects. Now I am trying to learn about. My IntensityMesh demo is working correctly, I tried to read what is inside the IntensityMesh.data file using notepad. I imagine that we have there a cloud of points with the coordinates, colours, etc. It took some time and after I could read a text with Japanese symbols. I remember that in the past I could see the data inside this same file in understandable letters. FIRST QUESTION: is there...
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2D or 3D: If you have a 3D equation like XX+ YY + ZZ=1 if you wish to draw it 3D you can plot based on Z=sqrt (1 - XX - Y*Y )
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Great material Pavel, thanks. I will go through it and the Plot3D code. I will write you next week. I see that what I need is here. The "superformula" for quadrics can be used with the righrt parameters to generate many-many forms. This article here is interesting https://github.com/bmlklwx/EMS-superquadric_fitting
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There is Maple Plot3D, but also actually 2.5D for f(x,y) not f(x,y,z) functions. f(x,y)
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Oh, no it's examples from Plot2D.exe with f(xy) functions and Plot3D having f(xyz) not implemented yet, only in plans. Look at explanation pdf in attachment. Plot2D.exe
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Oh, no it's examples from Plot2D.exe (https://sourceforge.net/p/glscene/code/HEAD/tree/branches/Examples/MathApps/Plot2D/ with f(xy) functions and Plot3D having f(xyz) not implemented yet, only in plans. Look at explanation pdf in attachment.
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In GLScene by default it has sphere equation and then you can change parameters in properties
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Fixed layout and data
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and this "boat" one about the so called manetohydrodynamics
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I can not send all in just one message
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Hi Pavel ... Thaks for the great info. I went through some older material and found great things including the Plot3D. I updated the code and is working . Now I will understand it beter. It is really great this and other codes by Eric Hardinger . I will go deep in this Plot3D and other demos I saw in the MathApps . Rare things there for engineering. Check attachments . I will write soon. Just by curiosity is Eric an engineer ? .... More ahead I will explain the figure "like a boat"
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Hi Sergio, Yes, you are on the right track. The superellipsoid must be described by formulas. The object was originally developed by Eric Hardinger more than 10 years ago, and I built it into the GLScene component. We have a Plot1D/Plot 2D application from him in branche/examples and I suggested making a Plot 3D, but Eric Hardinger said that he is retired, being eighty years old, and he cannot sit and program for long. It would be nice to have a set of programs f(x), f(x,y) and then Plot3D for f(x,y,z)...
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This is a hardware problem, not OpenGl
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I have a display problem with the screen of my Acer Inspire A317-51 when I place a TGLScene component (see attached screenshot). This does not happen on other computers. I'm using Delphi 12 and Windows 10
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the attached code
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Hi friends ..... In the working code attached there is a modification of the demo for the use of the TGLsuperellipsoid component. I added some few details. With this and the original demo it is possible to understand what each parameter do. I need to do the following. After changing the any or several trackbars and getting a figure, Ineed to write in the yellow panel the parameters of the superellipsoid equation which appears in the screen. This is the classic equation and very possibly what was...
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The attachment
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Hi Pavel and Omar. Thank you very much for your comments. Sorry for the long text below. Let me give some more details about what I am trying to do. After a long time, I am now going back to GLScene. I am trying to conclude some unfinished engineering works. GLScene is the only 3D library I know and use for many years. The 3D figures in this 2015 report use GLScene inside an engineering software developed by me. https://www.cognitor.com.br/TR074ENGValidationTempRise.pdf YOUR COMMENTS ARE WELCOME...
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In OPYC app, sails are modeled as a chain of interconnected line segments on a box2d scene. The wind on the segments generates forces, which along the forces on the keel, hull and rudder, power the boat in some direction. So the 3D sail is actually 2D polyline, repeated vertically with different chords. A popular way to simulate sailboat performance is to use polar charts (speed x twa). These are available for most sailboats. btw I'm in São Paulo
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In OPYC app, sails are modeled as a chain of interconnected line segments on a box2d scene. The wind on the segments generates forces, which along the forces the keel, hull and rudder, power the boat in some direction. So 3D sails are actually 2D polylines, repeated vertically with a different chord. A popular way to simulate sailboat performance is to use polar charts (speed x twa). These are available for most sailboats. btw I'm in São Paulo
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In OPYC app, sails are modeled as a chain of interconnected line segments on a box2d scene. The wind on the segments generates forces, which along the forces the keel, hull and rudder, power the boat in some direction. So 3D sails are actually 2D polylines, repeated vertically with a different chord. A popular way to simulate sailboat performance is to use polar charts (speed x twa). These are available for most sailboats
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In OPYC app, sails are modeled as a chain of interconnected line segments on a box2d scene. The wind on the segments generates forces, which along the forces the keel, hull and rudder, power the boat in some direction. So 3D sails are actually 2D lines, repeated vertically only with a different chord. A popular way to simulate sailboat performance is to use polar charts. These are available for most sailboats
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In OPYC app, sails are modeled as a chain of interconnected line segments on a box2d scene. The wind on the segments generates forces, which along the forces the keel, hull and rudder, power the boat in some direction. A popular way to simulate sailboat performance is to use polar charts.
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Sergio, For greater realism, each sail should be made on the physic basis of fabric with the verlet integration, as is done for the actress cape on the wind. More complex model with red sails. Pavel
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Sergio, For greater realism, each sail should be made on the physic basis of fabric with the verlet integration, as is done for the actress cape on the wind. More complex model with red sails. Pavel
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Added GuideGLS.pdf
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Hi Omar and Pavel. After a long time I finally got time to go back to developments using GLScene and now GBE3D. I restarted though the great Omar SailboatDemo. Really very good. I am exploring it and learning. Runs very well and the concepts behind are very useful. What I am trying to do is to mix it with engineering calculations I do in a simulation software I developed. I am doing some calculations that, at the end, will generate the “speed” of your tblboatspeed . More ahead when my calculations...
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Hi Omar and pavel. After a long time I finally got time to go back to developments using GLScene and now GBE3D. I restarted though the great Omar SailboatDemo. Really very good. I am exploring it and learning. Runs very well and the concepts behind are very useful. What I am trying to do is to mix it with engineering calculations I do in a simulation software I developed. I am doing some calculations that, at the end, will generate the “speed” of your tblboatspeed . More ahead when my calculations...
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Nathan Madutujuh modified a comment on discussion Open Discussion
Is there any manual to explain more about the capabilities of GLScene Compute module support for CUDA Double precision vector and matrix math ? Thx I just want to do a simple vector multiplication in parallel using CUDA facilities of GLScene. C = A x B Where A,B,C is a large vector of double precision number. Is that possible ? Thx
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I have managed to installed the GLScene for Windows 10 64 bit and Delphi Community XE 10.3. This is my first time to use GLScene with Windows 64 bit. Apparently we must rebuild all when installing for Windows 64 bit. (The tutorial says : Compile all from here) Change the target to Windows 64 bit Rebuild all from here For each DT, do installation Finished The 64 bit version runs fine and looks faster (I have not done any speed measurement yet). Thank you for the GLScene Developer Team.
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I have managed to installed the GLScene for Windows 10 64 bit. This is my first time to use GLScene with Windows 64 bit. Apparently we must rebuild all when installing for Windows 64 bit. (The tutorial says : Compile all from here) Change the target to Windows 64 bit Rebuild all from here For each DT, do installation Finished The 64 bit version runs fine and looks faster (I have not done any speed measurement yet). Thank you for the GLScene Developer Team.
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Is there any manual to explain more about the capabilities of GLScene Compute module support for CUDA Double precision vector and matrix math ? Thx
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Is there any command to export GLScene model to BIM IFC File ?
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Carlos Monteserin posted a comment on discussion Help
Dear Pavel, Thanks for your replay. when you ask to redefine the orientation of the polygons, I guess that would be equivalent to change the sign of the mesh.normals, no? should they be redefined for each triangle so they point towards the camera position? or does the position of the lights play a role on the problem? could you please elaborate on the appropriate camera settings to achieve the desired transparency effect. I will be trying several things on my own, will let you know if I reach any...
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Carlos, It seems that the issue here is not about transparency, not about the alpha channel. Perhaps it is necessary to change the bypass of some polygons not clockwise, but counterclockwise. And reconfigure the camera settings. Pavel
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Dear Pavel, Thanks for your help! First thing is that I kind of solved my problem with the interior objects disappearing behid the room walls in transparent mode. The problem was related with the objects in the scene been separated in different TGLDummyCubes each of them corresponding to a different category (say Furniture, Sources, Receivers,... ) which was handy for accessing the items in the code but turned out to be problematic for the rendering (as illustrated in my previous email). In fig1...
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Dear Pavel, Thanks for your help! First thing is that I kind of solved my problem with the interior objects disappearing behid the room walls in transparent mode. The problem was related with the objects in the scene been separated in different TGLDummyCubes each of them corresponding to a different category (say Furniture, Sources, Receivers,... ) which was handy for accessing the items in the code but turned out to be problematic for the rendering (as illustrated in my previous email). In fig1...
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Dear Pavel, Thanks for your help! First thing is that I kind of solved my problem with the interior objects disappearing behid the room walls in transparent mode. The problem was related with the objects in the scene been separated in different TGLDummyCubes each of them corresponding to a different category (say Furniture, Sources, Receivers,... ) which was handy for accessing the items in the code but turned out to be problematic for the rendering (as illustrated in my previous email). In fig1...
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glsviewer updated
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Added getpo and fixed gls.filestl for binaries
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Carlos, Maybe, but I don't see the code. We have a GLSViewer in Advdemos , thus I included landscape and room in the menu View. Please, add your objects there and we'll see what's going on. Leave a comment there. .. procedure TFormGLSViewer.acRoomExecute(Sender: TObject); begin // Room end; Pavel
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Updated advdemos
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Hello, I am implementing a GLScene application to visualize rooms containing objects. In the application the eye point is exterior to the room and always pointing towards the center of the room, the user can rotate the eyepoint around the center with the mouse changing the view. Room surfaces are introduced in the scene as a TGLFreeForm while the objects inside the room are inserted in a TGLDummyCube using the AddNewChild method, they are mainly spheres, cylinders and cones. In order to visualize...
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Lars, You wrote - I am also having problems with obj files. Note, that .obj of c/c++ compiled files and .obj format of models coincide, so may be you deleted your files using _cleanexamples.cmd occasionally . There is del *.obj /s line. Rem it for you. Pavel
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lnebel posted a comment on discussion Open Discussion
Pavel, The demos seem work, so it is not a general problem. Thanks
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Updated advdemos
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Hm, I don't assume why you need your view exactly with mouse, but for camera views there is an example at https://sourceforge.net/p/glscene/code/HEAD/tree/branches/Examples/Editors/Viewer4Win/ Try there.
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Lars, Give some example in demos where a texture with 3DS models are not loaded for you Pavel
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Hi all, I have upgraded to Delphi 12.1, and now textures are not loaded for 3ds files. I am also having problems with obj files. I have tried to roll back GLScene to a version before I upgraded Delphi, but the problem is the same so I suspect some change in Delphi. Am I the only one experiencing those problems? Lars Nebel
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Fixed cpp examples
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Updated assets
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Fixed and updated demos
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Fixed sources
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Updated help
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GLScene released /GLScene/GLScene v.2.4/Readme.txt
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Jur van Oerle modified a comment on discussion Help
Hi, In orthogonal view, I want to create a top view of the model (a building), so parallel walls on different floors coincide in the view. In the glsceneviewer the mouse movement is limited (always stops at a small angle, not exactly top view ). How can I get a real top view with the mouse? I suspect that a camera looking in the opposite direction of camera.up is not possible (why) ? Any suggestions? regards, Jur
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Hi, In orthogonal view, I want to create a top view of the model (a building), so parallel walls on different floors coincide in the view. In the glsceneviewer the mouse movement is limited (always stops at a small angle, not exactly top view ). How can I get a real top view with the mouse? I suspect that a camera looking in the opposite direction of camera.up is not possible ? Any suggestions? regards, Jur
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Hi, In orthogonal view, I want to create a top view of the model (a building), so parallel walls on different floors coincide in the view. In the glsceneviewer with the mouse movement is limited (always stops at a small angle, not exactly top view ). How can I get a real top view with the mouse? I suspect that a camera looking in the opposite direction of camera.up is not possible ? Any suggestions? regards, Jur
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Included SDL2.dll
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added textures
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Added TImageCollection in GLSViewer
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Included icons in assets
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Fixed glsviewer loader
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The sources of new versions will be on GitHub at
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Ergodata posted a comment on discussion Help
Thanks for the quick fix. However if you use both TGLHUDText (sprite) and TGLAbsoluteHUDText (3D object) the scale factor is needed, here is a suggestion, in TGLHUDText.RenderTextAtPosition(): if Self is TGLAbsoluteHUDText then f := 1 // fix else f := rci.renderDPI / 96; // original code
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shine world posted a comment on discussion Open Discussion
TGLCylinder and TGLAnnulus are in GLS.GeomObjects.pas
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John Ioannides posted a comment on discussion Open Discussion
Please disregard this!
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Hello, I decided to upgrade an old GLscene project to the latest version and to begin with it seems that TGLCylinder and TGLAnnulus are not there any more? Regards John.
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<REDACTED> posted a comment on discussion Physics
Hi Pavel, sorry for the very late response... I do not know, if this is still open, but unfortunately I no longer have the ability to control this for this particular project as I no longer have access to it. Regards Michael
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Updated installation.pdf
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Fixed kernel.cu for scalarproduct demo
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Thomas posted a comment on discussion Help
Hey, Any add-on information about this? or a demo example? I have the same goal. But it crashes for me after turning on the breaking on vGLFileOBJ_SplitMesh to True: line 930 (GLS.FileOBJ) AffineVector := mesh.TexCoords[TexCoordIdx]; What do i do after doing : Model.LoadFromFile('EpicModel.obj'); // more further code to make the different mesh objects available to use? Noobie could use some help :) Greetigns! Stranger
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Hai, I'm looking into how to import my 3D model. This model is going to have separated parts/layers/objects. I would like to import such a file into glscene that keeps those layers, rather than making just 1 object of it when imported with the TGLFreeForm component. I need it because i want to manipulate those layers depending on the usecase. But I cant seem to find any information about this. Is there a workaround? or anything? If not possible, any ideas what framework/dll would let me do this?...
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Extra MPL 2.0 license file deleted
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Eric Walmsley posted a comment on discussion Help
Hi Pavel, Thanks for that - I'm downloading that example now. Cheers Eric
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Hi Eric, You can find it in examples, e.g. in https://sourceforge.net/p/glscene/code/HEAD/tree/branches/Examples/Geoscience/SurferView/ See screenshot. Pavel
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Hi Eric, You can find it in examples, e.g. in https://sourceforge.net/p/glscene/code/HEAD/tree/branches/Examples/Geoscience/SurferView/ See screensgot. Pavel
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Hi, Is there a way/setting that will remove the curtains/sides from the Heightfield? I want to just see the top layer, like a cloth covering the points, rather then like the attached. Many thanks Eric
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Michael Läßig posted a comment on discussion Help
Hello, after playing around with your building i see that there are some wrong polygons. Within the code above i stupidly used the 3 first points to create a plane. Unfortunatily are some polygons where the first 3 points lay on a straight line that cannot build an plane. Michael
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Hello, I know this is an "cold case" but i faced it yesterday. Your polygon coordinates are absolute 3d coordinates. there ist currently no information about rotations and translations. You can see it if you turn polyGL.ShowAxes on. All Polygons have the same positions and angles. This ist not the way GLScene works. All Polygons should be defined in x/y plane around the centerpoint at 0/0 and then using Translation and Rotation to set it in the right places. We can determine the needed informations...
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Hi, if i define a TGLLines Object with two Nodes at position (0, 0, 0) and (1, 1, 1) i expect an BoundingBox of (0, 0, 0) (1, 0, 0) (1, 1, 0) (0, 1, 0) (0, 0, 1) (1, 0, 1) (1, 1, 1) (0, 1, 1) but i get one with (-1, -1, 0) (1, -1, 0) (1, 1, 0) (-1, 1, 0) (-1, -1, 1) (1, -1, 1) (1, 1, 1) (-1, 1, 1). is there a possibility to get my expected version? thanks Michael