The projection tag has no wiki summary.
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What kind of projection is used here?
Tibia is a 2d game, but it's sprites are drawn using certain kind of orthographic projection that is not the same I'm used to:
I'm trying to figure out what projection is used here. I've guessed ...
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31 views
Camera Projection back Into 3D world, offset error
I'm using XNA to simulate a robot in a 3D world and then do image analysis on what the camera sees.
I have my camera looking down in front of the direction that the robot is going, and I have the ...
2
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1answer
83 views
Coordinate spaces and transformation matrices
I'm trying to get an object from object space, into projected space using these intermediate matrices:
The first matrix (I) is the one that transforms from object space into inertial space, but since ...
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0answers
112 views
Black Screen: How to set Projection/View Matrix
I have a Windows Phone 8 C#/XAML with DirectX component project. I'm rendering some particles, but each particle is a rectangle versus a square (as I've set the vertices to be positions equally offset ...
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1answer
82 views
How to do geometric projection shadows?
I have decided that since my game world is mostly flat I don't need better shadows than geometric projections - at least for now.
The only problem is I don't even know how to do those properly - that ...
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0answers
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Numerically stable(ish) method of getting Y-intercept of mouse position?
I'm trying to unproject the mouse position to get the position on the X-Z plane of a ray cast from the mouse. The camera is fully controllable by the user. Right now, the algorithm I'm using is...
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2answers
130 views
2D camera perspective projection from 3D coordinates — HOW?
I am developing a camera for a 2D game with a top-down view that has depth.
It's almost a 3D camera. Basically, every object has a Z even though it is in 2D, and similarly to parallax layers their ...
12
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1answer
108 views
Orthographic unit translation mismatch on grid (e.g. 64 pixels translates incorrectly)
I am looking for some insight into a small problem with unit translations on a grid.
Update and Solved
I solved my own issue. See below for details. Everything in this part of the post turned out to ...
4
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2answers
520 views
If I project a sphere in 3D will it be a circle?
Assuming I have infinite vertices to represent the sphere, if I project the sphere from any position/scale in 3D to 2D, will it be a circle?
I know it will not be a circle on the screen, because of ...
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1answer
67 views
Scanline filling of polygons that share edges and vertices
In this picture (a perspective projection of an icosahedron), the scanline (red) intersects that vertex at the top. In an icosahedron each edge belongs to two triangles. From edge a, only one triangle ...
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1answer
83 views
Greiner-Hormann clipping problem
I have a set of planar polygons in 3D space defined by their vertices in counterclockwise order. Let's define the 'positive face' as being the face of the 3D polygon such as when observed, the ...
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0answers
124 views
Unity3D - Projection matrix camera frustum
I've used off centre projection to create a custom projection matrix for my camera.
When I run the game I can see the scene correctly in the game view but in the editor view the camera frustum is not ...
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1answer
89 views
Orthogonal projection and world transform
I'm reading about projection matrix. Needs of perspective projection is obvious, but I'm not sure about orthogonal projection. Because orthogonal projection effect looks possible with only world ...
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1answer
123 views
Off center projection
I'm trying to implement the code that was freely given by a very kind developer at the following link:
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2answers
311 views
Game Engine which can provide 360 degree projection for PC
I'm searching Game engine which can provide 360 degree real-time projection. I've already achieved this by using VBS2 Game Engine. (Ref.: ...
