forked from 0ad/0ad
128 lines
3.1 KiB
GLSL
128 lines
3.1 KiB
GLSL
!!ARBfp1.0
|
|
#if USE_FP_SHADOW
|
|
OPTION ARB_fragment_program_shadow;
|
|
#endif
|
|
|
|
ATTRIB v_tex = fragment.texcoord[0];
|
|
ATTRIB v_shadow = fragment.texcoord[1];
|
|
ATTRIB v_los = fragment.texcoord[2];
|
|
|
|
#if USE_OBJECTCOLOR
|
|
PARAM objectColor = program.local[0];
|
|
#else
|
|
#if USE_PLAYERCOLOR
|
|
PARAM playerColor = program.local[0];
|
|
#endif
|
|
#endif
|
|
|
|
PARAM shadingColor = program.local[1];
|
|
PARAM ambient = program.local[2];
|
|
|
|
#if USE_SHADOW_PCF
|
|
PARAM shadowOffsets1 = program.local[3];
|
|
PARAM shadowOffsets2 = program.local[4];
|
|
TEMP offset;
|
|
#endif
|
|
|
|
#if USE_SPECULAR
|
|
ATTRIB v_normal = fragment.texcoord[3];
|
|
ATTRIB v_half = fragment.texcoord[4];
|
|
PARAM specularPower = program.local[5];
|
|
PARAM specularColor = program.local[6];
|
|
#endif
|
|
|
|
TEMP tex;
|
|
TEMP texdiffuse;
|
|
TEMP sundiffuse;
|
|
TEMP temp;
|
|
TEMP color;
|
|
TEMP shadow;
|
|
|
|
TEX tex, v_tex, texture[0], 2D;
|
|
#if USE_TRANSPARENT
|
|
MOV result.color.a, tex;
|
|
#endif
|
|
|
|
// Apply coloring based on texture alpha
|
|
#if USE_OBJECTCOLOR
|
|
LRP temp.rgb, objectColor, 1.0, tex.a;
|
|
MUL texdiffuse.rgb, tex, temp;
|
|
#else
|
|
#if USE_PLAYERCOLOR
|
|
LRP temp.rgb, playerColor, 1.0, tex.a;
|
|
MUL texdiffuse.rgb, tex, temp;
|
|
#else
|
|
MOV texdiffuse.rgb, tex;
|
|
#endif
|
|
#endif
|
|
|
|
#if USE_SPECULAR
|
|
// specular = specularColor * pow(max(0.0, dot(normalize(v_normal), v_half)), specularPower);
|
|
TEMP specular;
|
|
TEMP normal;
|
|
DP3 normal.w, v_normal, v_normal;
|
|
RSQ normal.w, normal.w;
|
|
MUL normal.xyz, v_normal, normal.w;
|
|
DP3_SAT temp.y, normal, v_half;
|
|
// temp^p = (2^lg2(temp))^p = 2^(lg2(temp)*p)
|
|
LG2 temp.y, temp.y;
|
|
MUL temp.y, temp.y, specularPower.x;
|
|
EX2 temp.y, temp.y;
|
|
MUL specular.rgb, specularColor, temp.y;
|
|
#endif
|
|
|
|
// color = (texdiffuse * sundiffuse + specular) * get_shadow() + texdiffuse * ambient;
|
|
// (sundiffuse is 2*fragment.color due to clamp-avoidance in the vertex program)
|
|
#if USE_SHADOW
|
|
#if USE_FP_SHADOW
|
|
#if USE_SHADOW_PCF
|
|
MOV offset.zw, v_shadow;
|
|
ADD offset.xy, v_shadow, shadowOffsets1;
|
|
TEX temp.x, offset, texture[1], SHADOW2D;
|
|
ADD offset.xy, v_shadow, shadowOffsets1.zwzw;
|
|
TEX temp.y, offset, texture[1], SHADOW2D;
|
|
ADD offset.xy, v_shadow, shadowOffsets2;
|
|
TEX temp.z, offset, texture[1], SHADOW2D;
|
|
ADD offset.xy, v_shadow, shadowOffsets2.zwzw;
|
|
TEX temp.w, offset, texture[1], SHADOW2D;
|
|
DP4 shadow, temp, 0.25;
|
|
#else
|
|
TEX shadow, v_shadow, texture[1], SHADOW2D;
|
|
#endif
|
|
#else
|
|
TEX tex, v_shadow, texture[1], 2D;
|
|
MOV_SAT temp.z, v_shadow.z;
|
|
SGE shadow, tex.x, temp.z;
|
|
#endif
|
|
|
|
MUL sundiffuse.rgb, fragment.color, 2.0;
|
|
|
|
#if USE_SPECULAR
|
|
MAD color.rgb, texdiffuse, sundiffuse, specular;
|
|
MUL temp.rgb, texdiffuse, ambient;
|
|
MAD color.rgb, color, shadow, temp;
|
|
#else
|
|
MAD temp.rgb, sundiffuse, shadow, ambient;
|
|
MUL color.rgb, texdiffuse, temp;
|
|
#endif
|
|
|
|
#else
|
|
#if USE_SPECULAR
|
|
MAD temp.rgb, fragment.color, 2.0, ambient;
|
|
MAD color.rgb, texdiffuse, temp, specular;
|
|
#else
|
|
MAD temp.rgb, fragment.color, 2.0, ambient;
|
|
MUL color.rgb, texdiffuse, temp;
|
|
#endif
|
|
#endif
|
|
|
|
#if !IGNORE_LOS
|
|
// Multiply everything by the LOS texture
|
|
TEX tex.a, v_los, texture[2], 2D;
|
|
MUL color.rgb, color, tex.a;
|
|
#endif
|
|
|
|
MUL result.color.rgb, color, shadingColor;
|
|
|
|
END
|