Final Project Proposal: LeeHendrickson, RyanSmith

Illustrative Pictures

lava1 lava2

Project Goals

Our goal is to render a lava flow or a molten material such as steel. These materials exhibit black-body radiative characteristics that cause their surfaces to be emmissive. Furthermore, the particular features of such a surface have a somewhat chaotic/irregular look to them that lends itself to be modeled through procedural methods. These two concepts are intrinsically related, as the surface of the material changes (due to cooling over time, or structural deformation due to flow) so does its emmissive characteristics - we wish to model the system so as to gainfully exploit this relationship.

Motivation

Visually, an active lava flow or a stream of molten steel is very compelling, as it is both dramatic and unique. This is not something a person has everyday exposure to, and as such a certain sense of excitement/wonderment is produced in the viewer by these phenomenon.

On a technical side, PBRT currently only supports "traditional" light sources such as a point light, an area light, or an environment map. Adding support for black body radiators opens the door to many other interesting light sources such as fires.

We would also like to enrich PBRT's procedural generation algorithms with one having some distinctive physical basis. Since the temperature of a molten material has some direct relationship with time (as it flows and possibly cools), parameterizing the generating algorithms with a time factor could lead to the production of some eye-catching animations.

Key Technical Challenges

  1. Black body radiation.
    1. Computing (physically) correct emissive characteristics of material (based on temperature).
    2. Varying between the emissiveness of the black body at high temperatures and a possibly more traditional BRDF at low temperatures in a continuous and plausible fashion.
    3. Actually lighting the environment according to the calculated emissiveness of the black body (photon mapping?)
  2. Procedural generation of surface features.
    1. Designing a procedural algorithm to generate a visually appealing and plausible surface temperature (and thus emissive characteristic) for the flow. This algorithm should be parameterized such that other information (such as temperature of the area directly below the surface) can be taken into account to give rise to a more physically correct surface.
    2. Possibly in later stages using a procedural algorithm to generate the geometry of the material itself rather than a fixed model.
    3. The procedurally generated surface features should be able to be fed to the black body radiation algorithm such that emissiveness is directly related to those surface features.
  3. Modeling an appropriate environment.
    1. To be able to visually recognize that the flow is a black body radiator there must be at least some objects in the environment that can realistically reflect the emitted light.
    2. However, given the time frame of the project this must be balanced with the need to otherwise keep the scene as simple as possible.

Outline of Approach

Given the different components of the project there is a natural delineation of work across technical challenges 1 and 2 above. The focus will be on rapidly prototyping each component in PBRT, with Ryan concentrating on black body radiation, Lee on procedural generation methods, and both on modeling (most likely the geometry of the scene will be created in 3dsmax or Maya). Once these proof-of-concepts are completed a more full fledged implementation will begin that integrates the two subsystems into one cohesive unit to create the final rendered image.

References

http://en.wikipedia.org/wiki/Blackbody_radiation

http://www-imagis.imag.fr/LAVA/

http://galileo.phys.virginia.edu/classes/252/black_body_radiation.html

http://mrl.nyu.edu/projects/texture/

http://freespace.virgin.net/hugo.elias/models/m_perlin.htm

http://www.24-7casino.info/

famous_trailersfree_bizar_fisting http://adult_sex_enertainment_media.in-my-pussy.info adult_sex_enertainment_media http://daily_porn_video_samle.in-my-pussy.info daily_porn_video_samle http://sexy_breast_xxx_picteres.in-my-pussy.info sexy_breast_xxx_picteres http://sexrussin_modlesrussin_naked_girls.in-my-pussy.info sexrussin_modlesrussin_naked_girls http://nude_boys_photographypooping_pronopregnet.in-my-pussy.info nude_boys_photographypooping_pronopregnet http://shemale_movie_posts_free.in-my-pussy.info shemale_movie_posts_free http://gay_wallpapers_free_xxx.in-my-pussy.info gay_wallpapers_free_xxx http://sailormoon_cartoonporno_free_pantyhose.in-my-pussy.info sailormoon_cartoonporno_free_pantyhose http://thumbs_misty_sexs_life.in-my-pussy.info thumbs_misty_sexs_life http://sexvideo_arabiantiny_free_wearing.in-my-pussy.info sexvideo_arabiantiny_free_wearing http://pictures_fucks_little_no.in-my-pussy.info pictures_fucks_little_no http://entertainment_tits_squirting_mature.in-my-pussy.info entertainment_tits_squirting_mature http://bondagegangrape_bondagegangrape_bondage_sick.in-my-pussy.info bondagegangrape_bondagegangrape_bondage_sick http://chat_sex_images_nude.in-my-pussy.info chat_sex_images_nude http://girls_fingering_themselves_free.in-my-pussy.info girls_fingering_themselves_free http://asses_lolita_teenager_panty.in-my-pussy.info asses_lolita_teenager_panty http://ads_menseniors_older_women.in-my-pussy.info ads_menseniors_older_women http://porn_clickheretofind_shemale_video.in-my-pussy.info porn_clickheretofind_shemale_video http://explicit_material252__sexually.in-my-pussy.info explicit_material252sexually http://amater_girls_nude_gallerys.in-my-pussy.info amater_girls_nude_gallerys http://saver_school_gilrs_pictures.in-my-pussy.info saver_school_gilrs_pictures http://sex_tumbnailsfeer_fuck_photos.in-my-pussy.info sex_tumbnailsfeer_fuck_photos http://underground_pornstar_bambi_woods.in-my-pussy.info underground_pornstar_bambi_woods http://serie_gallery_aanal_sexfree.in-my-pussy.info serie_gallery_aanal_sexfree http://saving_private_ryan_mpg.in-my-pussy.info saving_private_ryan_mpg http://movieshugh_dicks_womens_asses.in-my-pussy.info movieshugh_dicks_womens_asses http://nude_sex_images_hairy.in-my-pussy.info nude_sex_images_hairy http://free_sex_pictures_amaturesteen.in-my-pussy.info free_sex_pictures_amaturesteen http://french_free_teen_pornnude.in-my-pussy.info french_free_teen_pornnude http://only_magazines_videosteen_only.in-my-pussy.info only_magazines_videosteen_only http://photosblack_nigger_flic_mpeg.in-my-pussy.info photosblack_nigger_flic_mpeg http://olderwomen_sex_pic_sexey.in-my-pussy.info olderwomen_sex_pic_sexey http://teenagers_pcturessex_sexty_comics.in-my-pussy.info teenagers_pcturessex_sexty_comics http://loadable_movies_mpegxxx_leonxxx.in-my-pussy.info loadable_movies_mpegxxx_leonxxx http://littel_angels_girl_photo.in-my-pussy.info littel_angels_girl_photo http://fucked_son_japanies_naked.in-my-pussy.info fucked_son_japanies_naked http://nude_year_old_japanes.in-my-pussy.info nude_year_old_japanes http://nacked_pics_nakedmodellpictures_fat.in-my-pussy.info nacked_pics_nakedmodellpictures_fat http://indian_bigbreast_sexy_hot.in-my-pussy.info indian_bigbreast_sexy_hot http://streaming_video_pornjenny_macarthy.in-my-pussy.info streaming_video_pornjenny_macarthy http://pics_erica_boyer_women.in-my-pussy.info pics_erica_boyer_women http://bitchsgirls_nude_brazilian_girls.in-my-pussy.info bitchsgirls_nude_brazilian_girls http://porno_blackwomen_free_download.in-my-pussy.info porno_blackwomen_free_download http://pictures_bbw_walk_orgasam.in-my-pussy.info pictures_bbw_walk_orgasam http://japenese_bukkake_gallerieshenati_video.in-my-pussy.info japenese_bukkake_gallerieshenati_video http://videos_downloads_fuck_suck.in-my-pussy.info videos_downloads_fuck_suck http://woman_gallery_puusywebinfosearch_headhunter.in-my-pussy.info woman_gallery_puusywebinfosearch_headhunter http://mpeg_download_tit_press.in-my-pussy.info mpeg_download_tit_press http://adult_lollita_alias_jrmq.in-my-pussy.info adult_lollita_alias_jrmq http://free_sex_porn_photoess.in-my-pussy.info free_sex_porn_photoess http://mpeg_porn_anita_blonde.in-my-pussy.info mpeg_porn_anita_blonde http://school_boys_nude_juniorfucking.in-my-pussy.info school_boys_nude_juniorfucking http://teen_pornage_girls_sexy.in-my-pussy.info teen_pornage_girls_sexy http://girls_bathsexsy_ladies_pussy.in-my-pussy.info


CategoryHomepage