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// Set UV coordinates //
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// transform positions into T0 - T3
dp4 oT0.x, v0, c26
dp4 oT0.y, v0, c27

dp4 oT1.x, v0, c28
dp4 oT1.y, v0, c29

dp4 oT2.x, v0, c30
dp4 oT2.y, v0, c31

dp4 oT3.x, v0, c32
dp4 oT3.y, v0, c33

// copy rgb
mov oD0, c34

// transform + clamp alpha for dist fade off
dp4 r0.x, v0, c35
min r0.x, r0.x , c34.w	// alpha <= proj alpha
max r0.x, r0.x, c94.w	// alpha >= 0

// get normal angle from sun dir
dp3 r0.y, v1, c7

// quantize to 0 or 1
mul r0.y, r0.y, c93.w	// ang *= 4.0f
min r0.y, r0.y, c93.x	// clamp alpha <= 1
max r0.y, r0.y, c94.w	// clamp alpha >= 0

// mul with alpha for final output
mul oD0.w, r0.x, r0.y