radiosity + textures

prety cool examples paradox!

i wish there where more people showing off their examples!

Thank you dotblend these were quickies to test the technique. I may have some new ones up soon. Your technique and methods made radiosity so easy and effective that I’m exploring it more and more. My title picture on my home page at my site was done with radiosity but I added a shadow only light and a layer only halo for mist like effect.

I too would like to see some other examples from others. Paradox thows the gauntlet down as a challenge for others to show and tell.

Paradox

i wish there where more people showing off their examples!

I posted an image on this thread, and look at my current Weekend Challenge entry. All done with your technique.

http://mysite.iptic.com/bgdm/Trophies.jpg

BgDM

now that looks pretty cool!

i’m gonna post some more images soon!

Cool looking forward to seeing more of your radiosity pics Dotblend.
Cool image BgDM. I’ve added 2 new radiosity pics to my experimental page on my site. http://hstrial-jgray1.homestead.com/untitled1.html
At the bottom of the page.
Paradox

didn’t even think of using that nueclear waste button but now that i know its there i might give it a go :o :o :o :o

I gave this a try too, and it worked… for a while. I found that once the scene reached a certain level of complexity, it didn’t work anymore. Objects would not show up at render time. Perhaps this is a bug in Blender and has nothing to do with your technique.

Great!!!

Compliments, and thanx for sharing technique!

This should go to th CJ as feature article (Gooooosfer… wink wink)

Stefano

This is not really a bug, but more of a limit in the programming. When you run the radiosity calculation, Blender combines all the mesh data and material data into one. There is a limit to how many materials can be applied to one mesh and thus, they do not appear when you render. So you need to limit your detail and number of meshes in your scene when using radiosity, for now anyway.

At least, this is what I think is happening.

BgDM

finally :slight_smile:

:frowning: I am a Blender newbie… What I didn’t understand about dotblend’s tutorial (donwloaded the rar file, but coud not extract. Error message using Ultimate Zip) is: Did you apply your material and texture (earth map) to that sphere? What is the function of the empty? Do you put a texture to the empty? I coudn’t do this (using Blender Publisher 2.25). Did you make the empty parent to the sphere? How is this texture applied? One last thing… when you show as your mesh, there is a cube and an empty selected… so, I didn’t understand why did you put a cube, since it does not seem to appear in the rendered scene? I am sorry so many questions, but I am still learning how to work with Blender…

Thank you,
Andre

Dotblend’s tut is quite an advanced one…

You’d better start with basic texturing tutorial, logo/decal applying tutorial (To learn use an empty for textures) and basic radiosity tutorial before trying.

You can find all these in the List of tutorials in the Q&A forum

Stefano

Thanks for the advice (about looking for empties in Q&A), S68. Actually, I kept the page opened after disconnecting and suddenly I found how to do it. (today I checked in Q&A, and saw I did it correctly) I am a Blender newbie, but not soooo newbie… Anyway I could do it and I want to thank dotblend for this tutorial. It was great to see that when you change, rotate the empty, the map will change accordingly! But I have 2 last questions for now… I could follow this tutorial with no problems at all, but I just have 2 doubts… Do certain versions of Blender show empties with a box or a cube? I tried to do another experience with this… when I applied the texture, I tried to add some specularity and hardness (before calculating radiosity), but it didn’t seem to affect the final result (after radiosity). Perhaps this would be because of the “Object” settings (and the name of the empty in material buttons)? Mine didn’t appeared so… well, 3D-like. I mean, it worked, but the object was not so… three dimensional… (don’t know if I am getting clear…).

marcanth, spec and hardness are effected by light. When you do radiosity you are faking light with vertex colors. One way I get around this sometimes after I apply the radiosity solution is to add some low enegy lamps to the scene in a way to cause the spec and other texture effects to show up more. It takes some experimenting. I sometimes also add some shadow only spots to add some stronger shadows. I hope this helps.
Paradox

If you only want to add specular highlights, you don’t need to set the energy level of the lamps to a low level, just set ‘Ref’ to zero, this will only leave the specular highlights without any extra diffuse lighting.
Incidentally, one of the pictures on my IBL page was done using a similar method without using empty’s for placing the textures.

Thanks for the addition to my comment Eeshlo, I wasn’t aware of the ref trick you mentioned, you just made my life easier. :slight_smile: Learn something new every day with Blender.
Paradox

:smiley: I did it!! I did it!! I got to extract dotblend’s .rar file (really, Ulitimate Zip didn’t do it, I used Winrar) and saw that the box comes from the “Bounds” at “Draw Extra” part in Edit buttons. That clarified everything. Thanks for your help, Paradox and Eeshlo! I will try to do some tests and see how it works. As for the “non 3d” aspect of my object, well, I reduced the area with lights, I mean, there was many objects producing lights so I removed some and now it got better!! I’ve got to understand this tutorial from Dotblend!! Thank you guys!! I agree with you, Paradox. Every day we learn something new with Blender. :smiley:

wow AWESOME

works fine for me!!!