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diff --git a/src/others/irrlicht-1.8.1/media/d3d9.vsh b/src/others/irrlicht-1.8.1/media/d3d9.vsh
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+; part of the Irrlicht Engine Shader example.

+; This Direct3D9 vertex shader will be loaded by the engine.

+; Please note that these example shaders don't do anything really useful. 

+; They only demonstrate that shaders can be used in Irrlicht.

+

+vs.1.1

+

+dcl_position v0;    ; declare position

+dcl_normal v1;      ; declare normal

+dcl_color v2;       ; declare color

+dcl_texcoord0 v3;   ; declare texture coordinate

+

+; transpose and transform position to clip space 

+mul r0, v0.x, c4      

+mad r0, v0.y, c5, r0   

+mad r0, v0.z, c6, r0   

+add oPos, c7, r0       

+

+; transform normal 

+dp3 r1.x, v1, c0  

+dp3 r1.y, v1, c1  

+dp3 r1.z, v1, c2  

+

+; renormalize normal 

+dp3 r1.w, r1, r1  

+rsq r1.w, r1.w    

+mul r1, r1, r1.w  

+

+; calculate light vector 

+m4x4 r6, v0, c10      ; vertex into world position

+add r2, c8, -r6       ; vtxpos - lightpos

+

+; normalize light vector 

+dp3 r2.w, r2, r2  

+rsq r2.w, r2.w    

+mul r2, r2, r2.w  

+

+; calculate light color 

+dp3 r3, r1, r2       ; dp3 with negative light vector 

+lit r5, r3           ; clamp to zero if r3 < 0, r5 has diffuce component in r5.y

+mul oD0, r5.y, c9    ; ouput diffuse color 

+mov oT0, v3          ; store texture coordinates
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