In this second post of Post Production and Visual Effects I will be showing you my Visual Effects research.
At this moment in time I haven’t thought of a plan or story for my project. First thing I am going to be doing is researching Visual Effects that I can possibly use in my project.
Here is the research:
A Particle Simulation is a visual effect technique that is used in games physics and computer graphics. This technique uses a big amount of very small sprites to simulate certain kinds of phenomena.
Common examples of Phenomena that are replicated by using Particle Simulations are fire, explosions, and smoke, moving water, sparks, falling leaves, clouds, fog, snow, dust, meteor trails, stars and galaxies.
Cloud Simulation: https://www.youtube.com/watch?v=EGYORQU4FfI
Video example: https://www.youtube.com/watch?v=oPi6ZoAVj_4
Info from: http://en.wikipedia.org/wiki/Particle_system#Simulation_stage
Fluid Simulation is a visual effect technique that is used in computer graphics for creating realistic animations. The animations that are normally simulated with this technique are water, smoke, explosions and other related objects.
Fire Fluid Simulation: https://www.youtube.com/watch?v=ZgoDypGMV50
Smoke Fluid Simulation: https://www.youtube.com/watch?v=P9Zq-JaBLug
Info from: http://en.wikipedia.org/wiki/Fluid_simulation
3D Matte Painting
Matte Painting is a painted representation of a landscape set or distant location that enables the film makers to create an illusion environment that doesn’t exist in real life.
Example Video of 3D Matte Painting: https://www.youtube.com/watch?v=87wgUqjl_IE
Info from: http://en.wikipedia.org/wiki/Matte_painting
Digital Compositing is a visual effect technique that digitally assembles multiple images to make a final image, motion pictures or screen display.
Digital Composting example: https://www.youtube.com/watch?v=3QqUf–6f0U
Info from: http://en.wikipedia.org/wiki/Digital_compositing#Software
Chroma Keying is a visual effects technique that is used for combining two frames or images by replacing a colour or a colour range in one frame with that from another frame.
Chroma Keying is mainly used in films to replace blue or green screen background with computer-generated scenes. The advantage of Chromo Keying and why it is used so much is because it is cheaper to do this rather than shooting in expensive or inaccessible locations.
Chroma Keying Example: https://www.youtube.com/watch?v=a21_WMiTAVE
Info from: http://www.techopedia.com/definition/476/chroma-key
Roto-scoping (in animation) is a visual effects technique that enables you to make animation that mimics live action video.
A good example of this is a live actor may be filmed to do a series of actions and the animator would then have the digital character mimic the actions of the human actor for a realistic animated scene.
Info from: http://www.webopedia.com/TERM/R/rotoscoping.html
Video Example of Rotoscoping: https://www.youtube.com/watch?v=8bX3fCQPs5I
Multi Pass Compositing
Multi Pass Compositing is a visual effect technique that separates a rendered image into elements. Every element represents property of the rendered scene. So rendering into elements gives you the chance to modify these properties separately in compositing for faster combinations into the background plate.
These elements are often known as passes. This term comes from the times when each separated property of the rendering had to be rendered in a separate step (pass).
Info from: http://vfxpedia.com/index.php?title=FAQ/Combining_3D_Passes#Short_Multi-Pass_Formula
Video of Multi Pass Compositing: https://www.youtube.com/watch?v=loYIhzGkzsk
Colour Grading (also known as colour correction) is a visual effects technique that changes and enhances the colour of a motion picture, video image or still image either electronically, photo chemically or digitally.
Info from: http://en.wikipedia.org/wiki/Color_grading
Video of Colour Grading: https://www.youtube.com/watch?v=OS6Tw5UT-8s
3D Camera Projection
3D Camera Projection is a visual effects technique where you use a light to shine through a piece of footage and project the image onto any 3D layers in your scenes.
Info from: http://www.surfacedstudio.com/tutorials/after-effects-3d-projection
Video of 3D Camera Projection: https://www.youtube.com/watch?v=121LECJZ2zg
Deep Data Compositing
Deep Data Compositing is a new way of compositing and rendering digital images. In addition to the usual colour and opacity channels a notion of depth is created. This enables multiple samples in the depth of the image to make up the final resulting colour. This technique has been producing really successful quality results.
Info from: http://en.wikipedia.org/wiki/Deep_image_compositing
Camera Tracking is a visual effects technique that is mainly used in the film industry. Camera Tracking is used to allow the inserting of computer graphics into live action footage with correct position, scale, orientation and motion relative to the photographed objects in the shot.
Info from: http://en.wikipedia.org/wiki/Match_moving
Video example of Camera Tracking: https://www.youtube.com/watch?v=fx3Jp27Vq0U
Digital Doubles is the creation/re-creation of a human being in image and voice using computer-generated imagery and sound that is often different from the real actor.
Info from: http://en.wikipedia.org/wiki/Virtual_actor
Video example of Digital Double: https://www.youtube.com/watch?v=wX–qmabOqI
Camera Stabilisation is a device that is designed to hold the camera in a manner that prevents any unnecessary camera movements which is often known as camera shake.
Info from: http://en.wikipedia.org/wiki/Camera_stabilizer