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Nishi 2026-01-11 20:26:15 +09:00
commit dd544c245e
Signed by: nishi
GPG key ID: 27EF69B208EB9343
5 changed files with 81 additions and 68 deletions
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26
engine/resource/shader/shadow.fs
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@ -31,12 +31,30 @@ vec4 PhongShading(void)
float ShadowCoef(void){
vec4 shadow_coord = vShadowCoord / vShadowCoord.w;
float view = shadow_coord.z;
float light = texture2D(depth_texture, shadow_coord.xy).z;
float view = shadow_coord.z - 0.0001;
vec2 d[4];
float light = 1.0;
float shadow_coef = 1.0;
int i;
if(vShadowCoord.w > 0.0){
shadow_coef = light < view ? 0.0 : 1.0;
d[0] = vec2(-0.94201624, -0.39906216);
d[1] = vec2(0.94558609, -0.76890725);
d[2] = vec2(-0.094184101, -0.92938870);
d[3] = vec2(0.34495938, 0.29387760);
light = texture2D(depth_texture, shadow_coord.xy).z;
for(i = 0; i < 4; i++){
vec2 p = shadow_coord.xy + d[i] / 700.0;
if(p.x < 0.0) continue;
if(p.y < 0.0) continue;
if(p.x > 1.0) continue;
if(p.y > 1.0) continue;
if(texture2D(depth_texture, p).z < view){
shadow_coef -= 0.2;
}
}
return shadow_coef;