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Houdini. 2D to 3D extraction software. 3D printers. QUIDAM. Video to 3D minipulation. Animating Water Using Flow Maps. Last week I attended SIGGRAPH 2010, and among the many good presentations, Valve game a talk on the simple water shader they implemented for Left For Dead 2 and Portal 2. So on the plane ride back from LA, I whipped up this little sample from what I could remember of the talk. Edit: You can find the talk here: The standard technique for animated water is scrolling normal maps, as I’ve previously written about. The problem with this is that it looks unnatural as water does not uniformly move in one direction.
So Valve came up with the idea of using flow maps ( based on a flow viz paper from the mid 90s ). The basic idea of flow maps is that you create a 2D texture that you will map to your water. And this map will contain the flow directions that you want the water to flow, with each pixel in the flow map representing a flow vector. The Flow Map First we need to create a flow map. Using The Flow Map And that’s pretty much it. Top 15 Applications for 3D Artists. Free great 3d drawing program.
3DS Max. Game development. SketchUp 3D Google. 3D forums. Maya, 3dsmax, XSI, Zbrush, Mudbox, Cinema 4D, Motion Builder, Softimage, Alias, Renderman, and free 3d resource tips, tricks, tutorials, Mel Scripts, plugins, shaders, tools Б─⌠ CGHUB.com Scripts. CG Social. Thanks for 2012! Here Is One Thing I've Learned About Improving Your Artwork. Maya. RenderMan. 3D Perspective. How to correctly position subjects in an image. There is a very simple rule that applies in every image and it can make your subjects really appear like they were originally in the shot.
[tweetmeme]In movies the best special effects are the ones you can’t detect. In photomontage applies the same. How many times we look at a montage and instinctively we detect there something wrong; the subject clearly looks superimposed. Rule of Horizon 1. It doesn’t matter if you are sitting, or standing, when you look straight ahead you see the horizon. 2. 3. With this simple rule now you can correctly position and scale different subjects in a composition Here is a practical example.
Step 1 Set the Horizon In your background image draw z-axis lines to show the image perspective The point where all the z-lines cross is the vanishing point. This is the horizon Step 2 Place your subjects For this example we will use the same subject so you can better appreciate the effect. Place you subject and scale it. Tags: Design Basics, Quick Tip About The Author. Cinema 4D.
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