nextrect.fp

PDE simulator on GPU.

!!FP1.0
#HERE Texture Unit----RECT
#******need to modify the following TexOffset******************

DECLARE OneTexOffset ={0, 0, 0, 0};

#Condition Test
MOV R1, f[TEX1];

#move one texel condition
MOV R6, {1, 0, 0, 0};
SUB R6, R6, OneTexOffset;
SGE R4, R1.xxxx, R6.xxxx;

#all texel move one texoffset to left
ADD R2.y, R1.y, OneTexOffset.y;

ADD R3.x, R1.x, OneTexOffset.x;
MOV R3.y, R1.y;

LRP R5, R4, R2, R3;

TEX R0, R5, TEX1, RECT;

MOV o[COLR], R0;
END