The projection tag has no wiki summary.
2
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41 views
uniform z slices in clip-space
1) Context
I'm using a regular OpenGL perspective projection matrix created with GLM (glm::perspective) and taking the inverse (glm::inverse) to transform clip-space back into view space (and world ...
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480 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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89 views
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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52 views
Uses for vector projection?
My previous question was solved by vector projection. Thus I spent some time studying it (Few helpful links: Interactive projection, short video and a longer video.).
There were plenty of sites that ...
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90 views
Drawing Projected Vertices/Faces In Order
I recently created a 3d engine, and have gotten to what is (as I've found) the hardest part so far. I need to sort the objects and then draw them. I've looked at sorting algorithms, but my case is ...
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91 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 ...
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168 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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215 views
Map 3D space to 2D screen space?
Could some one help me to understand this code and explain it?
It's about converting from 3D space to 2D position, so that I can use it in another Effects (.fx) files, but I am a bit confused.
float ...
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94 views
What is the connection between an isometric angle and scale
I am trying to work out an isometric projection matrix for a custom angle.
In the engine I'm using there's a projection matrix defined like so:
projection.rotate(45 * (Math.PI / 180) );
scale = ...
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795 views
Setting up perspective projection on Opengl ES 2.0 makes objects disappear
I'm working on a project using opengl-es 2.0, and I'm having some trouble setting up perspective projection.
If I don't set up the perspective projection and simply multiply the object-to-world ...
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236 views
Dynamic enviroment map using pincushion Curvilinear Perspective Projection possible?
I'm wondering if it is possible to generate a dynamic spherical environment map using a single frame render using a pincushion Curvilinear Perspective Projection Matrix (phew that's a mouthful).
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