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Cleaned up formatting and clarified.

edit approved Mar 15, 2012 at 16:19

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The two thingsTwo alternatives I'd recommend would be either:

A)A) Calculate all the matrices by hand. ThisIt doesn't require any matrix4 classes or anything, just a lot of math. You'd have to calculate something like

NDC_Coordinates=PerspectiveDivide(ProjectionCameraviewModelview*Vector)

NDC_Coordinates=PerspectiveDivide(Projection*Cameraview*Modelview*Vector)

The ModelviewModelview one is optional, so it'll be the cameraviewCameraView that will probably contain all the annoying rotation and translation stuff.

B)B) Make a Doom styleDoom-style renderer. I won't elaborate much here because there are tons of resources online.

http://www.permadi.com/tutorial/raycast/index.html

http://lodev.org/cgtutor/raycasting.html

http://lodev.org/cgtutor/raycasting2.html:

http://lodev.org/cgtutor/raycasting3.html

http://www.permadi.com/tutorial/raycast/index.html

http://lodev.org/cgtutor/raycasting.html

http://lodev.org/cgtutor/raycasting2.html

http://lodev.org/cgtutor/raycasting3.html

The two things I'd recommend would be either:

A) Calculate all the matrices by hand. This doesn't require any matrix4 classes or anything, just a lot of math. You'd have to calculate something like

NDC_Coordinates=PerspectiveDivide(ProjectionCameraviewModelview*Vector)

The Modelview one is optional, so it'll be the cameraview that will probably contain all the annoying rotation and translation stuff.

B) Make a Doom style renderer. I won't elaborate much here because there are tons of resources online.

http://www.permadi.com/tutorial/raycast/index.html

http://lodev.org/cgtutor/raycasting.html

http://lodev.org/cgtutor/raycasting2.html

http://lodev.org/cgtutor/raycasting3.html

Two alternatives I'd recommend:

A) Calculate all the matrices by hand. It doesn't require any matrix4 classes or anything, just a lot of math. You'd have to calculate something like

NDC_Coordinates=PerspectiveDivide(Projection*Cameraview*Modelview*Vector)

The Modelview one is optional, so it'll be the CameraView that will probably contain all the annoying rotation and translation stuff.

B) Make a Doom-style renderer. I won't elaborate much here because there are tons of resources online:

http://www.permadi.com/tutorial/raycast/index.html

http://lodev.org/cgtutor/raycasting.html

http://lodev.org/cgtutor/raycasting2.html

http://lodev.org/cgtutor/raycasting3.html

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answered Mar 14, 2012 at 21:54

user10968

The two things I'd recommend would be either:

A) Calculate all the matrices by hand. This doesn't require any matrix4 classes or anything, just a lot of math. You'd have to calculate something like

NDC_Coordinates=PerspectiveDivide(ProjectionCameraviewModelview*Vector)

The Modelview one is optional, so it'll be the cameraview that will probably contain all the annoying rotation and translation stuff.

B) Make a Doom style renderer. I won't elaborate much here because there are tons of resources online.

http://www.permadi.com/tutorial/raycast/index.html

http://lodev.org/cgtutor/raycasting.html

http://lodev.org/cgtutor/raycasting2.html

http://lodev.org/cgtutor/raycasting3.html