Awesome video! Just want to clarify information around 5:20-5:40. Pretty much every consumer graphics card nowadays work explicitly with triangle meshes. This means that if any software uses mathematical representation of a curve/surface it needs to convert it eventually to triangles/discrete representation to display it on the screen. This means that you by default don't get smooth surface when zooming in/out in the viewport. Two things can happen inside of the software (depending on a software you use): (1) automatic refinement of a surface mesh when you zoom in (this is how for example Fusion 360 works), (2) you need to manually change the settings to have a smoother curve/surface (this is how Maya works).
Thank you so much for this video, I've watched many nurbs surface videos and none of them starts from the beginning of explaining the logic to creating these shapes, only the 'how tos' which is great if you know the logic already but with your video I can now think through the logic of the shapes I want to create before moving onto drawing the appropriate geometries for it. Much appreciated! 🙏🏼
Hi, Thanks very much for your videos. Very clear and informative. I do not see the 'weights' variable available to me when I select control points. I've followed your steps and can select the points but there is no weight variable between the point's location and the 'Add Vertex' button. Here's a link to what I see. I'm running VW22 on a M1 Macbook. Thanks for any help.
update! the weights where available when I did the next excercise with a circle. There must be something I did wrong when I recreated the three points with the locus tool.
I think knowing that NURBS use math can be useful to keep in the back of your mind, but for working with NURBS in Vectorworks, you don't need any actual knowledge of the math behind them. The mathematical principals that may be most useful to remember: - NURBS cures and surfaces are math-based, like vectors, so they will be smooth at any zoom level - Understand the relationship between the degree setting and how that visually affects the curve - Creating a NURBS surface, you may be asking for a calculation that is impossible, and Vectorworks won't create a surface with those particular curves and / or parameters.
I have watched all 6 of these clear, informative movies in this series. Thank you for taking the time to make them. You are helping a lot of people.
Awesome video! Just want to clarify information around 5:20-5:40. Pretty much every consumer graphics card nowadays work explicitly with triangle meshes. This means that if any software uses mathematical representation of a curve/surface it needs to convert it eventually to triangles/discrete representation to display it on the screen. This means that you by default don't get smooth surface when zooming in/out in the viewport. Two things can happen inside of the software (depending on a software you use): (1) automatic refinement of a surface mesh when you zoom in (this is how for example Fusion 360 works), (2) you need to manually change the settings to have a smoother curve/surface (this is how Maya works).
How about shading solutions like SDF? There you can define a surface mathematically and it's no longer about triangles.
Thank you so much for this video, I've watched many nurbs surface videos and none of them starts from the beginning of explaining the logic to creating these shapes, only the 'how tos' which is great if you know the logic already but with your video I can now think through the logic of the shapes I want to create before moving onto drawing the appropriate geometries for it. Much appreciated! 🙏🏼
I agree with scythian, your explanation was the best one that I've ever heard for nurbs and its parts
The NURBS of this guy, amirite?
I'm letting myself out. Thanks for the explanations regardless.
Hi, Thanks very much for your videos. Very clear and informative. I do not see the 'weights' variable available to me when I select control points. I've followed your steps and can select the points but there is no weight variable between the point's location and the 'Add Vertex' button. Here's a link to what I see. I'm running VW22 on a M1 Macbook. Thanks for any help.
update! the weights where available when I did the next excercise with a circle. There must be something I did wrong when I recreated the three points with the locus tool.
Great explanation Sir
so if i dont know any thing in math can i learn NURBS ?
I think knowing that NURBS use math can be useful to keep in the back of your mind, but for working with NURBS in Vectorworks, you don't need any actual knowledge of the math behind them.
The mathematical principals that may be most useful to remember:
- NURBS cures and surfaces are math-based, like vectors, so they will be smooth at any zoom level
- Understand the relationship between the degree setting and how that visually affects the curve
- Creating a NURBS surface, you may be asking for a calculation that is impossible, and Vectorworks won't create a surface with those particular curves and / or parameters.
@@jBenghiatLD thx