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functional cascade shadow

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This commit is contained in:
Nishi 2026-02-02 23:24:12 +09:00
commit 79b5e4a7b4
Signed by: nishi
GPG key ID: 27EF69B208EB9343
7 changed files with 39 additions and 10 deletions
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9
engine/data/shader/shadow.fs
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@ -13,6 +13,7 @@ uniform sampler2D shadow_map2;
uniform sampler2D current_texture;
uniform float enable_lighting;
uniform float enable_texture;
uniform vec3 camera;
vec4 PhongShading(void)
{
@ -68,7 +69,11 @@ float SampleShadow(sampler2D shadowMap, vec4 shadowCoord) {
}
float ShadowCoef(void){
float dist = -vPos.z;
float dist = length(normalize(camera + gl_LightSource[0].position.xyz) - vPos.xyz);
if(gl_LightSource[0].position.w > 0.5){
if(dist >= 10.0) return 1.0;
}
if(dist < 10.0) return SampleShadow(shadow_map0, vShadowCoord0);
if(dist < 40.0) return SampleShadow(shadow_map1, vShadowCoord1);
@ -86,4 +91,4 @@ void main(void){
gl_FragColor = ambient * shadow_coef * c + (1.0 - ambient) * c;
gl_FragColor.a = vColor.a;
}
}