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  Anonymous
  Monday July 26 2021
  8 Replies
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Hello,
I want to know how to have a digital model with a reduced size, well the model is of a large project with a very high level of detail (Building, ELEC networks, AEP, Sanitation, roads, Plantations ...) but I think it there is surely a solution.

And even when I make a presentative video of the model in Infraworks or Lumion of only 2 mins, it is 21G !!
And that poses a problem for me during the presentation of the project.

I will be grateful if anyone can help me.
there are about 2 months
·
#16813
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Hello,

I have a question: when you indicate 21G, you speak in Gb or in GB (= GB). I ask because there is a difference of a factor 8 between these two ratings: 1 GB = 8 Gb.

Regarding the lightening of the model, there is not really a miracle method to my knowledge: if you do not have the possibility to change the Level of detail or if it represents too much work, one of the best solution is remove items that are not visible in your presentation.

For the video which is 21 Giga (bit or byte), the solutions are to play with the level of rendering and / or the resolution of the video and / or the format of the video (MP4, AVI, ...). The last two elements are the easiest and fastest to edit (when exporting your video)

I would like to remind you that a 4K video (3840x2160 pixels) is 4 times heavier than a Full HD video (1920x1080 pixels). To find the most suitable resolution, find out about the resolution of the device you will be using during your presentation.

cordialement,
Raphael
there are about 2 months
·
#16815
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Hello,

A BIM model is a model in IFC format, otherwise it is a Tekla model, or an Allplan model, or a Vectorworks model, or an Archicad model or a Revit model. For the latter, many resources are integrated into the model unlike other solutions which for an equivalent project benefit from a lighter and more responsive model.
The format is therefore essential because it conditions the size of your model. Please specify your tool in order to find the best solution. If you are talking about a working file then it will be much heavier than a deliverable which will only contain what you need. IFC meets this goal and can divide the weight of a model by 100. You can also use the FBX format for your infographic work to obtain a file dedicated to this task while minimizing its weight.
Finally, whatever the type of video file, you must specify the resolution, the number of images / second and the encoding (the codec). I recommend a 1K resolution at 24fps via H264 codec. To achieve this without going through your rendering software again, I recommend the excellent encoding software HandBrake


Christophe FORTINEAU
Consultant, trainer, AMO BIM
there are about 2 months
·
#16816
0
Votes
Cancel
Hello,

I have a question: when you indicate 21G, you speak in Gb or in GB (= GB). I ask because there is a difference of a factor 8 between these two ratings: 1 GB = 8 Gb.

Regarding the lightening of the model, there is not really a miracle method to my knowledge: if you do not have the possibility to change the Level of detail or if it represents too much work, one of the best solution is remove items that are not visible in your presentation.

For the video which is 21 Giga (bit or byte), the solutions are to play with the level of rendering and / or the resolution of the video and / or the format of the video (MP4, AVI, ...). The last two elements are the easiest and fastest to edit (when exporting your video)

I would like to remind you that a 4K video (3840x2160 pixels) is 4 times heavier than a Full HD video (1920x1080 pixels). To find the most suitable resolution, find out about the resolution of the device you will be using during your presentation.

cordialement,
Raphael




Thanks, Yes I mentioned 21 GB.
there are about 2 months
·
#16817
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Hello

I imagine it is Byte but Raphaël at a rate of 1 byte = 8 bits.
1 Byte = 1 byte = 8 bits

Regarding the size of the models, it is becoming more and more a real scourge. Many models more than they should or model elements that relate to another trade, even have their own model, hence a duplication of object.

At a minimum, you have to purge unused items and objects and delete unnecessary ones. And check the "compact" box when saving.

I never do a presentation but if you only need the 3D model maybe a backup of the 3D view of your choice: from memory.
Right-click on the 3D view of your choice, drop-down menu, choose "Save as", save the 3D view in your presentation folder. The file is suddenly reduced (by a lot) because it only contains the 3D model.
there are about 2 months
·
#16818
0
Votes
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Hello,

A BIM model is a model in IFC format, otherwise it is a Tekla model, or an Allplan model, or a Vectorworks model, or an Archicad model or a Revit model. For the latter, many resources are integrated into the model unlike other solutions which for an equivalent project benefit from a lighter and more responsive model.
The format is therefore essential because it conditions the size of your model. Please specify your tool in order to find the best solution. If you are talking about a working file then it will be much heavier than a deliverable which will only contain what you need. IFC meets this goal and can divide the weight of a model by 100. You can also use the FBX format for your infographic work to obtain a file dedicated to this task while minimizing its weight.
Finally, whatever the type of video file, you must specify the resolution, the number of images / second and the encoding (the codec). I recommend a 1K resolution at 24fps via H264 codec. To achieve this without going through your rendering software again, I recommend the excellent encoding software HandBrake


Christophe FORTINEAU
Consultant, trainer, AMO BIM



thank you,
I found some problem with the IFC format, there is always a lack of data when exporting the model from GeoMensura or Civil 3D, so I worked with the FBX format it's much better .
But again more than 50% of the data is not exported, when exporting the InfraWorks model in FBX format to present it on NavisWorks (NWD format required by the customer).
there are about 2 months
·
#16819
0
Votes
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Hello

I imagine it is Byte but Raphaël at a rate of 1 byte = 8 bits.
1 Byte = 1 byte = 8 bits

Regarding the size of the models, it is becoming more and more a real scourge. Many models more than they should or model elements that relate to another trade, even have their own model, hence a duplication of object.

At a minimum, you have to purge unused items and objects and delete unnecessary ones. And check the "compact" box when saving.

I never do a presentation but if you only need the 3D model maybe a backup of the 3D view of your choice: from memory.
Right-click on the 3D view of your choice, drop-down menu, choose "Save as", save the 3D view in your presentation folder. The file is suddenly reduced (by a lot) because it only contains the 3D model.



Thank you for this information,
Please specify the software you mentioned to save the 3D view because I could not apply this operation.
there are about 2 months
·
#16820
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I found some problem with the IFC format, there is always a lack of data when exporting the model from GeoMensura or Civil 3D, so I worked with the FBX format it's much better .


It is both true and false...
True because an IFC is not a working file but a deliverable and therefore the IFC contains what you select and nothing more: this is its very asset.
False because it is not a lack of data but a selection.
GeoMensura does not have a wide choice of IFC export options and to work on an infographic project the IFC will not dethron the FBX which has many advantages.
there are about 2 months
·
#16823
0
Votes
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I found some problem with the IFC format, there is always a lack of data when exporting the model from GeoMensura or Civil 3D, so I worked with the FBX format it's much better .


It is both true and false...
True because an IFC is not a working file but a deliverable and therefore the IFC contains what you select and nothing more: this is its very asset.
False because it is not a lack of data but a selection.
GeoMensura does not have a wide choice of IFC export options and to work on an infographic project the IFC will not dethron the FBX which has many advantages.


Okay thank you so much
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