32 lines
805 B
PHP
32 lines
805 B
PHP
OPTION ARB_position_invariant;
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TEMP R0, R1;
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$include "megatexture/mt_common_vertex.inc"
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DP4 R0.x, $positionAttrib, $lightProject_s;
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DP4 R0.y, $positionAttrib, $lightProject_t;
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DP4 R0.z, $positionAttrib, $lightFalloff_s;
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DP4 R0.w, $positionAttrib, $lightProject_q;
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MOV result.texcoord[6], R0;
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# calculate vector to light in R0 (object space)
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SUB R0, $lightOrigin, $positionAttrib;
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DP3 R1, R0, R0;
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RSQ R1, R1.x;
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MUL R0, R0, R1.x;
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DP3 R0, $normalAttrib, R0;
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MAX R0, R0, 0;
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ADD R1, 1, -R0;
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MAD result.color, $megaBlendOutDotP.x, R1, R0;
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TEMP _R1, _R2;
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SUB _R2, $positionAttrib, $viewOrigin;
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DP3 _R1.x, _R2, _R2;
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RSQ _R1.y, _R1.x;
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MUL _R1.x, _R1.y, _R1.x;
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MUL _R1.x, _R1.x, 0.00002;
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#EX2 result.texcoord[3], -R1.x;
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SUB result.color.secondary, 1, _R1.x;
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