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7
votes
2answers
548 views

Portal Projection

Ok ok I admit, I'm bored and toying with a portal script like the one on steam. I've figured out the following: relative positioning of the mirrored cameras render to texture for the portal (the ...
1
vote
1answer
1k views

Restoring projection matrix

I am learning to use FBOs and one of the things that I need to do when rendering something onto user defined FBO, I have to setup the projection, modelview and viewport for it. Once I am done ...
8
votes
3answers
864 views

Inverted textures

I'm trying to draw textures aligned with this physics body whose coordinate system's origin is at the center of the screen. (XNA)Spritebatch has its default origin set to top-left corner. I got the ...
1
vote
2answers
799 views

Rotate around a 3d Object (Software Renderer)

I have a simple 3d software renderer (SDL / C++) which can load a 3ds Model and render it (shaded) and rotate it around X Y Z - Axis. Now I would like to rotate / move around the object, meaning, the ...