units3o.fp

来自「这是整套横扫千军3D版游戏的源码」· FP 代码 · 共 34 行

!!ARBfp1.0
# S3O model rendering without shadows
OPTION ARB_fog_linear;

TEMP temp,reflect,texColor,extraColor,specular;
TEMP tempColor,shadeColor;

#get unit texture
TEX texColor, fragment.texcoord[1], texture[0], 2D;
TEX extraColor, fragment.texcoord[1], texture[1], 2D;

#normalize surface normal
DP3 temp.x, fragment.texcoord[2], fragment.texcoord[2];
RSQ temp.x, temp.x;
MUL temp, fragment.texcoord[2], temp.x;

#calc reflection dir
DP3 reflect.x, temp, fragment.texcoord[3];
MUL reflect.x, reflect.x,{-2};
MAD reflect, temp, reflect.x, fragment.texcoord[3];

#get specular highlight and remove if in shadow
TEX specular, reflect, texture[4], CUBE;
MUL specular, specular, {4,4,4,1};
MUL specular, specular, extraColor.y;

TEX reflect, reflect, texture[3], CUBE;
LRP shadeColor, extraColor.y, reflect, fragment.color;
LRP texColor, texColor.w, program.env[14], texColor;
ADD shadeColor, shadeColor, extraColor.x;

MAD result.color, texColor, shadeColor, specular;
MOV result.color.w, extraColor.w;
END