Texture Matrix and Distortion
Author
Hi i was just wondering if anyone knew how to distort textures in the texture matrix. I have been looking at how to distort the texture with water effects and dont really know where to sart on this. I have currently got as far as having a heightmapped wave - with a projected texture mapped onto it.
Does anyone know how to feed new coords into the texture matrix, or distort texture coords in the texture matrix?
Thanks
Cheers,
Monster.
http://www.brownmonster.co.uk/
Texture matrix is the same like modelview but it affect texcoord.
So you can only modify texcoord with texture matrix but it will alway map a 3 point polygon to a triangle. It''s like playing with modelview matrix and drawing a triangle, it will be always a triangle.
P.S.: Sorry for my english
So you can only modify texcoord with texture matrix but it will alway map a 3 point polygon to a triangle. It''s like playing with modelview matrix and drawing a triangle, it will be always a triangle.
P.S.: Sorry for my english
Author
i understand that part of it 
, but dont understand how i can distort textures to give a rippling affect on it.
, but dont understand how i can distort textures to give a rippling affect on it.
You can use EMBM to do a per-pixel offset to your projected texture coordinates. Then you animate the EMBM texture to distort based on your waves.
Author
right, so what is EMBM? - hope thats not a stupid question!
Thanks
Cheers,
Monster.
http://www.brownmonster.co.uk/
Thanks
Cheers,
Monster.
http://www.brownmonster.co.uk/
Author
Heres what im trying to do - goto 20:21 Water lecture.
i have worked out the new texture coordinte but dont know how to apply them per vertex, he says something to do with appending the coords.
Ta Steve
i have worked out the new texture coordinte but dont know how to apply them per vertex, he says something to do with appending the coords.
Ta Steve
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