Hello all

I have just started to learn HLSL, so I am atm a shader noob

Imagine that there is a plane in 3dgs, at origin 0, and it extends to -4000 and 4000 on the x axis and -4000 and 4000 on the y axis (a square, large plane).

When a camera is above the plane, I want to get the camera's coordinates and convert them into the texture "space" ? of the plane, so the camera's position turns into the range 0 and 1 I think it is.

I am just having trouble getting the camera's position in world space into the range 0 and 1 for the shader's texture? (so later I can, for example, draw something under the camera on the plane)

Any ideas? Is this the best way to do it?

Thanks,
Adoado.

well being a noob myself i'm not quite sure what you're after but to me it seems alot like you are on about uv coordinates.

for example, using a program like maya you have to make sure your uv map is in the range of 0,1 in order for the texture you plonk on to come out correctly. you can then export that map to photoshop or similar to paint on a texture then take the whole thing to gamestudio.

i not completely sure but i dont think it matters about moving the camera in 3dgs at all as it wont affect the uv range, all it will do is make your square appear in the camera view with the texture visible at whatever resolution you have used. the uv range is something directly related to the uv's on the model and not the camera position, but hey i could be wrong...

just trying to help like

Code:

---

x = camera.x/8000 + .5;
y = camera.y/8000 + .5;

---

surely that would do the trick?

hope this helps,

julz