This is the shell of an abalone, which inhabit the California coast, as well as various other parts of the world. I think that this is a pink abalone, but am not 100% sure. You can’t tell from the model, but the inside of the shell is quite iridescent - pink, blue, and green. Here’s the CA Fish & Wildlife abalone ID page: https://www.wildlife.ca.gov/Conservation/Marine/Invertebrates/Abalone/Abalone-ID
“The shells of abalones have a low, open spiral structure, and are characterized by several open respiratory pores in a row near the shell’s outer edge. The thick inner layer of the shell is composed of nacre (mother-of-pearl), which in many species is highly iridescent, giving rise to a range of strong, changeable colors, which make the shells attractive to humans as decorative objects, jewelry, and as a source of colorful mother-of-pearl.” (https://en.wikipedia.org/wiki/Abalone)
12 comments
Thanks, @710597447!
nice
@xiezhong I used 103 photos. Importing masks from background is something that was recommended to me by @kirkbear. It is super useful for merging chunks that have the same background. Basically, you get each chunk to the mesh stage and then go to tools>import>import masks and choose "from model". This automatically applies masks to your images so that when you merge the chunks (or if you just want to move all the photos in one chunk), any background similarities are disregarded and only the object's points are used to create the complete model.
I have had mixed experience with masks. The more complex an object is the more useful I find masks to be. They're also very handy during the texturing phase of model creation.
great!
I guess i need 48+48+12=108 photos if I do the same work.How many do you?
As you said:""- if I had set up the shoot a bit more cleverly I could have imported masks from background, "",what does it mean?Do you mean that there is a feature in agisoft allowing you importing masks directly from photos? I beg your teaching.
In fact,according to my many experiments,I do not think "mask" is useful or necessary.I never use "mask" to make an integral model.Maybe I do not know how to use "mask" correctly? It really cost much much time.
I would appretiate if you give me any advice.
Thanks, @3DU !
wow Abbey so good!
I had a feeling alot of masking would be involved!
A very nice result non the less, well done :)
Thanks, @corbusiancrunch , @archaeologysouthwest , and @shekov !
@dazx , I processed the inside and outside photos each in their own chunks and then aligned and merged the chunks. I had to do a fair amount of masking - if I had set up the shoot a bit more cleverly I could have imported masks from background, which likely would have saved me a great deal of time.
How do you tie the inside and outside together ? Presuming you photograph it on a flat surface then turn it over.
nice work!
The interior iridescence is handled particularly well. Bravo. I need to try for some spondylus soon.
very cool!