Ammonia Fountain EXP Modelling

Gokul & I, alongwith learning the python tutorials decided to start the modelling of the selected experiment. We decided to model the glass flask, the glass jet and the rubber cork without the appropriate textures for the day. We finished the modelling and thought we should try baking a scene where the water goes through the glass jet and comes out into the glass flask. After several hours of trying the same, we did not manage to do so. We are experiencing the same problem we faced last sem. The problem is the water does not pass through the small glass jet. It either does not bake or does not obey laws of physics. If anyone has a solution please PLEASE let us know as we intend on finishing the modelling soon and wish to start the animation.

The following are the pictures of our work today.

Water falling in a glass bowl (revisited)

I remember doing my 1st blender fluid simulation of a water sphere falling inside a water mug. its been a long time since then and i have decided to go back to basics for the ammonia experiment. I just realised that i can use single walled meshes for my flasks and trough instead of the agonizingly complex double walled mesh we are used to creating as blender isnt able to calculate the necessary fluid simulation co-ordinates when fluid is to flow inside or outside the object. But if the init shell option is turned on for an object acting as an obstacle then this difficulty can be overcome. That is what i have done in the following simulation. i made a simple uv sphere , cut it open in half and let it remain a single walled semi circular shapped flask. then i poured fluid into it. the uv sphere acts as obstacle with init shell option turned on. the domain is as usual a big cube. the following picture shows the mesh :
the result is as shown in the video :

this is an interesting development i believe , because if we manage to work with single walled meshes , then our work is reduced to half. its like suppose the project was to one has to count all the leaves in a given tree , then i guess this discovery is analogous to that of finding out that the tree is perfectly symmetrical along one of the axis which efectively reduces the work by half.

regards gokul

Spiral pipes

so finally done with spiral pipes all credit goes to bhairav....it was his idea and he actually made it but i made it again with thickness....for this take a normal cylinder and circle then extrude the circle along the cylinder for this use rotation and grab method but after completing one round just copy and joint.....

nitin

While editing...

while editing some pipes in model made by bhairav unknowingly i deleted one little surface but after doing some editing in the model i resaved that file than i looked once i found that i deleted one surface so now i have to make it again for that i tried shift+F method but i didnt get the surface way i wanted than i did it with exrude and grab method than coinciding each vertex and than remove by pressing W and REMOVE DOUBLES method but it is very much time consuming so people if u find some other and better way than please let me know...

and to make anything spherical or a set of vertices forming a loop into circle shape there is tool called TO SPHERE is available for that we need to select the loop of vertices after that make the CURSOR->SELECTION by doing this 3d cursor will come at the center of the selected loop of vertices and after that press TO SPHERE tool in MESH TOOLS...it will form a circular shape and the 3d cursor will act as a center for that circle..

Nitin

To Remove Unwanted Edges

on first look it appears there is some edge is there than after we thought its because of some bug in blender...than we left this problem but its not a bug in blender its actually something else which even i dont know but we can remove it by increasing subsurf level or there is another method which i got from video tutorial thanks karan for that..so for that select the object in edit mode than press Ctrl+N and than say OK for RECALCULATE NORMAL OUTSIDE after doing this those unwanted edges will disappear take a look at this pictures now


Nitin

Bhairav's Sketch Edited

Alright..cheers to Bhairav for the amazing sketch of the apparatus..When Nitin got the .blend file over to my place we realized some of the pipes were flat and others were cuboidal..here's the final product after we ironed out, or rather spherical-ized the pipes..





Few mistakes still need to be fixed though..
-Nitin and Chirag.

Next Assignment

The next assignment we have is to learn and understand the importing of jpegs into blender so that it can be traced. It needs to be done so that the while making beakers and others apparatus, the proportion is proper. Anyone who works on this, should upload the results.

Thanks

Kaeyur

Making glass Pipes In 5 minutes

i came across this technique by chance , i was playing around with the bazier curve and suddenly i saw the option of bavel...well it basically spins the curve across the baveld object. So i spun a bazier curve along a bazier circle and Voila ! i got a pipe. By applying the material effects for glass in 2 minutes i had made a glass pipe. By using the Extrude option i could change the size and shape of the pipe. i am posting the image of the rendered file. I shall post the .blend file on yahoo groups once i make a better one.

here is the image

posted by Gokul

regards

Pipe

We tried making a pipe, but were not able to make the surface to join the two concentric sides.. Anyone has any tips??



Thanks

Kaeyur

Water in a Glass Tank

Adding to the posts by karan...this is the final product of all the hours of labouring today. i have added the rapidshare download link to all those who cannot access youtube. the rendered image

the video :

posted by gokul

Water problem SOLVED!

As predicted the solution to our problem of not being able to color the 'baked' water was an annoyingly simple one. It was a problem with the machine and not what we did. Gokul's and my Pc both letting us color the fluid after it is baked. So what we were doing was right. The only thing to remember is it doesnt matter what changes you make to the fluid before you bake it. After you bake, it does not retain the changes. So bake the fluid on default settings and change the color and texture after it is baked. Works like a peach.
An entire hard days of work solved in a matter of seconds at home!


karan

TEA CUP MODELLING

Hi Friends, I am Bhairavnath I made model of tea cup in Blender by using tutorial.so I want to share this modelling step by step

1) First make 4 stage window in blender then press spacebar-Add-Mesh-Cylender 16 vertices say ok


2)Press Tab for edit mode like in below image

3) Select all vertices by pressing A and after that press ctrl+R to increase edges

4) Press A for deselect and select only two faces whichever u extrude for the handel of cup


5) selected faces delete by pressing or Delete button as shown in image .


6) Select the edges whichever u deleted the faces and extrude by pressing E as shown in below image

7) Make this type of shape by using extrude and rotate R for rotate as shown in image.

8) at the end point weld the vertices by pressing Alt+M at the center.


9) Select the top one vertice and delete as shown in image.

10) Select the front view and select top edges go top view and extrude them and scale it inside S for scaling.

11) Extrude this edges iner side at down direction and at end point scale it in one point.


12) after that select all vertices by pressing A and add modifier subsurf as shown in below image
render lavel 3 and press set smooth button in wndow and check all the parameter.

14) And press F12 for render the final result .


this is the compelete modelling of tea cup.


Thanks




Bhairavnath Lahotkar

Video Technician
CSE dept IIT,Bombay

Knob

As told by sir, we have started with the small parts of the experiment. The thing we have made is a a small tap like structure in the bottom left of the experiment apparatus. The screen shot of the .blend file is as follows



The rendered image is as follows


We have not given it the glass texturing and nor have we put the top of it still..


Will keep postin..

Thanks



Kaeyur

Beaker

We edited the beaker and made changes to the spout. We put the whole thing inside the box so as to cut the reflection. It looks pretty much better than what we posted earlier`

The screenshot of the final render is as follows..



The rendered image is as follows


This is as much as we have done. Will keep updating..


Kaeyur

Pawn

Hi Friends,

This is my first experiment on blender to make Pawn.

Glass

Hi All,

This time i try with the help of tutorial to make a transparent glass, the following is the url of the tutorial

http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Model_a_Silver_Goblet

Apparatus

Hi All,

I try to make a apparatus which is easy to make with the help of Extrude and Scaling.

Beaker

We finally decided to take a concrete step towards making a beaker. Since we had already learnt to make glass, we only had to work out how to make a beaker and the main thing being that we had to add a spout to the tip of the beaker. We did try making the beaker by a L line and then spinning and also by making a cylinder. The end result did look something like this..


As we can see, we were not able to attain perfect smoothness and were not able to make it look like a beaker. We then went to an online forum called nystic.com and put this up. We did get replies and one suggestion which actually gave us directions to make the beaker. The directions were as follows!!



We then implemented at and also ad tried out some things on our own and got the following which looks very much like a beaker.

The screenshots of the .blend file are




I have posted two photos to show the beaker inside the cube. We did as we were gettin a reflection of the sky on the glass.

The rendered images are



The second image is rotated image of the beaker.


As sir had told us to do, we cannot actually say who did what as we all did everything together..

That is it for all, will keep the blog updated. As usual the .blend file is on the yahoo group.

Thanks


Kaeyur

Goblet

As i had said in the previous post that i would upload the goblet we perfected with the glass effect. We also tried to put some liquid into the goblet, but it did not work very well.

the screenshot of the .blend file is as follows


the rendered image of this wine glass is


Though the liquid does not look like it actually should, it foes look pretty decent!!.

We have also added a plane on purpose so that the glass can be seen. If it is not put, the glass will not be seen. The only Thing seen would seen would have been the sky, which would be blue im colour.

That is it for now, will keep u posted as we progress toward our goal. For the blend file, please visit the yahoo group.

Thanks

Kaeyur

One Step Further

After finishing our apparently human figure, we had a meeting with our mentor at IIT. Though he did praise us forgetting ourselves introduced to modelling (i atleast hope he did!!), he said that we should be heading our directions towards modelling scientific apparatus as our goal was to animate chemical experiments. He also suggested to us that we try make glass and try making water as they were two important materials in an experiment.

We first tried to get the glass effect for the material. On the same wikibook mentioned in the previous post, there was a tutorial to make agreen goblet. We followed that tutorial to make this goblet..


As you can see the goblet did not come out to be as expected. We did work on this later and produced a goblet(i shall post this later, maybe tomorrow or dayafter). We added the glass effect to this but it took about 2 hrs to render. Hence we made a cube and gave it the same effects and The results were as follows!!

The .blend file is


The screenshot of the rendered image is as follows..



As we can see, we acheived a breakthrough and could now give the glass effect to materials..

Will Keep u Posted on further progress.

Thanks,

Kaeyur