TITLE: The thin wall NAME: Gilles Tran COUNTRY: France EMAIL: tran@inapg.inra.fr WEBPAGE: http://www.oyonale.com TOPIC: Contrast COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. JPGFILE: gt_wall.jpg RENDERER USED: Megapov 0.6a TOOLS USED: Poser 4.03, sPatch, Spilin, 3DWin RENDER TIME: 1 week HARDWARE USED: Pentium III 733 IMAGE DESCRIPTION: The only important thing to say is that though there's a clear separation between the left and right part of the scene, they do interact: radiosity and direct lighting make the colours bleed and blend. Also, the scene of the right appears on the TV screen (as seen by a person that would be standing behind the woman's right shoulder). So that there less contrast that one could think... DESCRIPTION OF HOW THIS IMAGE WAS CREATED: ======== Notes ======== Some objects, like the toilet bowl or the VCR, were downloaded from the Internet to be used as placeholders until I modelled them properly, but I ran out of time. I'm reasonably pleased with the Poser characters, though there is a margin for improvement. The man is far too muscular and hairless. The skin of the woman is quite plastic. I tried the skin shader in Vahur Krouverk's Povman patch but it didn't work better in these settings (however it has been used to create the framed image on the wall of the TV room). The hair is not very good. It should have some reflection but the render time went up the roof during the tests. The atmosphere is not 100atisfying, with a "dollhouse" effect due to too much order and cleanliness. Fixing this by weathering the textures and adding other small objects would have required more time. The shadows are too dark, in both rooms. You'll see more detail if you change the gamma, but then the lit parts will appear washed out. This scene relies heavily on Megapov's radiosity and wouldn't have been possible without the improvements made by Nathan Kopp, and without the search for good radiosity settings carried out by various people in the Povray newsgroups. The tests were run with fast low-quality radiosity settings, changed to high-quality ones for near-final and final renders. The scene file contains various switches to turn on and off radiosity, area lights or the apparition of some elements. The whole scene file directory contains about 150 Mb of files, because of the big meshes, image maps and related files. From what I've seen in the tests, the memory use is probably in the 200-300 Mb range. I restarted the render several times, so I don't know the real figure, but stopping the rendering cleanly always caused several minutes of disk trashing. Mesh conversion was made with Thomas Baier's 3DWin. Image maps were painted or modified with Picture Publisher. UV maps were in some cases created with Steve Cox's UVMapper. ========= Object list ========= Here is a description of the objects. From left to right: --------- TV room --------- Walls: boxes textured with a image map TV: modelled in sPatch, exported to mesh2 format, and then completed with CSG (button panel and screen). The screen is actually made of two parts: one is a transparent image map that filters the area light behind and the other (visible) one is another image map with no_shadow (so it can be seen but does not contribute to the scene lighting). TV table: all CSG, coded from a real life one. VCR: downloaded from 3D Cafe, converted to mesh2. Carpet: a height field made from a noisy image. Library: (barely visible) made with my Library macro, with some changes in the cover pattern finishes. Lamp: CSG with an helix1 isosurface. Photo on the wall: CSG frame. The image itself is a render of a previous version of the female character. Cables (on the floor and ceiling): CSG using the spline function in Megapov. Couch: modelled in sPatch and directly exported to Povray as Bezier patches. Man: "Michael" figure, pants and hair model from Zygote, posed in Poser 4.03, converted to mesh2. The maps are a mixture of original maps and other found in Renderosity and various Poser sites. Glass (in the man's hand): modelled in sPatch, imported in Poser to fit the hand. Halogen lamp: CSG, modelled after a real life lamp. Magazine on couch: modelled in sPatch, directly exported to Povray. The texture is a screenshot of web pages. Beer cans (on the floor and on the couch): CSG models taken from Fabien Mosen's Fridge image from the IRTC Imaginary worlds round. Maps taken from the internet. Remote control (on the couch): downloaded from the 3D Cafe, converted to mesh2. ---------- Bathroom ---------- Coat hanger, light switch and toilet bowl shelves : CSG. Sponges (top shelf): modelled with an isosurface. Bottles on the shelf above the toilet bowl: CSG mixture of lathe objects made with Spiline and other primitives. Maps painted in Picture Publisher. Rolls of toilet paper : cylindrical isosurfaces Toilet bowl and toilet paper dispenser: downloaded from the 3D Cafe and converted to mesh2. Sink: a lath object modelled in Spilin. The lathe was cut in two and each half scaled differently. Pipes were made with CSG. All pieces of furniture: CSG, with a macro to make the front parts. A bump map was used to give a better surface for some of them. Woman: "Victoria" figure and hair (Jim Burton's Hollywood hair) from Zygote, posed in Poser 4.03, converted to mesh2. The maps are a mixture of original maps and other found in Renderosity and various Poser sites. Mirror: CSG, shelves modelled after a real life one. Bottles and cup on the shelves: CSG mixture of lathe objects made with Spiline and other primitives. Maps painted in Picture Publisher. Faucet: downloaded from the 3D Cafe and converted to mesh2. Soap, soap holder, toothbrush, brush, lipstick tubes: CSG, modelled after real life objects. Toothpaste tube: modelled in sPatch after a real one, converted to obj format and uv-mapped with UVmapper, then converted to mesh2. Photos on the wall: Bezier patches with uv mapping of real photos. A macro makes the corners rise up. Basket: a Poser prop that came with Catherine Todd's "Period dress" (brokered by Zygote), converted to mesh2. The map is the original one. Clothes: various clothes from Victoria's clothing pack, flattened and folded in Poser 4, then converted to mesh2. Carpet and towels : height fields painted with noise in Picture Publisher. Floor: CSG, assembled with a macro.