An approximate representation, on a flat surface, of an image as it is seen by the eye.

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56 views

Selecting the closest point in perspective view mode

I'm trying to improve my algorithm for selecting points in perspective view mode (OpenGL/Qt/C++). The current implementation works as follows. The user clicks on a certain (x,y) position (in Window ...
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219 views

Java OpenGL Perspective matrix not working

I'm trying to render a simple triangle with OpenGL in Java using LWJGL3. Everything is working great, but the projection matrix (perspective) is not working. In C++ I just used to apply the glm::...
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54 views

I get weird perspective using GLM where the depth is flipped. Please help

The depth is rendered wrong and I can't figure out why. using namespace std; using namespace glm; int width = 640; int height = 480; float aspect = (float)width/height; int fps = 60; void start(){ ...
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43 views

Perspective division by zero yields unexpected results

Usually, this is how a shape in clip space is defined: [0.25, 0.25, 0.0, 1.0] [0.25, 0.75, 0.0, 1.0] [0.75, 0.75, 0.0, 1.0] [0.75, 0.25, 0.0, 1.0] After perspective division to NDC space the result ...
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258 views

How can I mimic an isometric perspective using square tiles?

Can an isometric perspective be mimicked with traditional square tiles? Can't the effects of the 45-degree overhead view simply be "drawn in" to the square? How would this work? Picture this: the ...
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38 views

Perspective correct interpolation of normal values

I'm currently writing a software rasterizer and I'm at the point where I can draw arbitrary triangles with vertex colors and perspective correct texture mapping. I do point and directional lighting by ...
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0answers
38 views

Construction of perspective matrix

Is it possible to Construct a perspective matrix by multiplying a perspective transformation with a parallel projection ? I want a perspective projection in 2D space which is calculated by ...
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0answers
112 views

Matching the 3ds max camera view in my game 1:1

I want to match 1:1 the 3ds max camera render with my 3d engine (DirectX 11, C++). I believe that my mesh exporter (coded with MaxScript) works fine, I see the right shapes. But something about the ...
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110 views

Faking Perspective/Depth using 3D images converted to 2D sprites - Can't work it out!

after a lot of searching/reading/viewing old school game videos I am still unable to work out how to achieve the effect I am after. I am currently working on a 2D "overhead view" sci-fi RPG, using a ...
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58 views

Perspective projection

I'm studying Perspective projection in a computer graphics course and i'm really confused about a detail. The study material says there are 3 cases: Case 1: View plane parallel to the xy plane and ...
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205 views

Tunnels in pseudo 3D racing game

How would one go about doing tunnels in a pseudo 3D racing game ? The main problem I have at the moment is perspective - I cant think of a way, beyond having to Z sort the sprites and tunnel ...