Started by rcallicotte, January 04, 2008, 08:01:51 pm
Quote from: zionner on January 04, 2008, 08:37:32 pmNoobier Question: What are Bill-Board amd Instances when your talking about TG 2
Quote from: cyphyr on January 04, 2008, 08:23:15 pmSurely they are already supported, billboards just an object after all.Richard
Quote from: Oshyan on January 05, 2008, 01:48:27 pmThis is little different from the Plane object, which is already available. You can even make populations of planes. The camera-facing functionality is probably the major lacking feature.- Oshyan
Quote from: calico on January 05, 2008, 11:40:12 pmOshyan, does this mean it's possible to create our own billboards utilizing the Plane object? If so, I'm beginning to assume how it would be accomplished. I might need to ask questions, if I get lost.Quote from: Oshyan on January 05, 2008, 01:48:27 pmThis is little different from the Plane object, which is already available. You can even make populations of planes. The camera-facing functionality is probably the major lacking feature.- Oshyan
Quote from: Oshyan on January 05, 2008, 02:52:06 amBillboards are 2D images, usually loaded from pre-computed textures or photos, which are used in place of 3D models for faster rendering. They are usually used at a distance where their lower realism is less noticeable. They usually have to be set to always face the camera as seeing them side-on would betray their 2D nature. Billboards are considered a form of "sprite", a basic graphics primitive. A quote from Wikipedia:"More often sprite now refers to a partially transparent two dimensional animation that is mapped onto a special plane in a 3D scene. Unlike a texture map, the sprite plane is always perpendicular to the axis emanating from the camera. The image can be scaled to simulate perspective, rotated two dimensionally, overlapped with other objects, and be occluded, but it can only be viewed from the same angle. This rendering method is also referred to as billboarding."http://en.wikipedia.org/wiki/Sprite_(computer_graphics)- Oshyan
Quote from: RealUser on January 06, 2008, 06:15:47 amIf billboards will be implemented in the future, it would be perfect if they work in the following way:1. use billboards from a certain distance to the camera2. color, size and image variations3. face to camera (that has been mentioned here already I know)4. pre-rendered animations for movements and other changes (spring to autumn) in the distant trees5. is it useful to have images from different angles for the trees? (birds-view, front-view ect) or is that not necessary for distant trees?