Simplify sunlight shadow shader.
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c91c04c862
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@ -29,16 +29,8 @@ vec3 getMostRepresentativePoint(vec3 direction, vec3 R, float angularRadius)
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return (DdotR < d) ? normalize(d * D + normalize (S) * r) : R;
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return (DdotR < d) ? normalize(d * D + normalize (S) * r) : R;
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}
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}
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float getShadowFactor(vec3 pos, float bias, int index)
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float getShadowFactor(vec3 pos, int index)
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{
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{
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vec2 shadowoffset[4] = vec2[](
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vec2(-1., -1.),
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vec2(-1., 1.),
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vec2(1., -1.),
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vec2(1., 1.)
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);
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vec4 shadowcoord = (ShadowViewProjMatrixes[index] * InverseViewMatrix * vec4(pos, 1.0));
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vec4 shadowcoord = (ShadowViewProjMatrixes[index] * InverseViewMatrix * vec4(pos, 1.0));
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shadowcoord.xy /= shadowcoord.w;
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shadowcoord.xy /= shadowcoord.w;
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vec2 shadowtexcoord = shadowcoord.xy * 0.5 + 0.5;
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vec2 shadowtexcoord = shadowcoord.xy * 0.5 + 0.5;
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@ -73,39 +65,14 @@ void main() {
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// Shadows
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// Shadows
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float bias = 0.005 * tan(acos(NdotL)); // According to the slope
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int shadowtex_index = 0;
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bias = clamp(bias, 0., 0.01);
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shadowtex_index += (xpos.z >= split0) ? 1 : 0;
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float factor;
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shadowtex_index += (xpos.z >= split1) ? 1 : 0;
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if (xpos.z < split0)
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shadowtex_index += (xpos.z >= split2) ? 1 : 0;
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factor = getShadowFactor(xpos.xyz, bias, 0);
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/* else if (xpos.z < 6.)
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float factor = getShadowFactor(xpos.xyz, shadowtex_index);
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{
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factor = (xpos.z > splitmax) ? 1. : factor;
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float a = getShadowFactor(xpos.xyz, bias, 0), b = getShadowFactor(xpos.xyz, bias, 1);
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factor = mix(a, b, (xpos.z - 5.));
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}*/
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else if (xpos.z < split1)
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factor = getShadowFactor(xpos.xyz, bias, 1);
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/* else if (xpos.z < 21.)
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{
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float a = getShadowFactor(xpos.xyz, bias, 1), b = getShadowFactor(xpos.xyz, bias, 2);
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factor = mix(a, b, (xpos.z - 20.));
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}*/
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else if (xpos.z < split2)
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factor = getShadowFactor(xpos.xyz, bias, 2);
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/* else if (xpos.z < 55.)
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{
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float a = getShadowFactor(xpos.xyz, bias, 2), b = getShadowFactor(xpos.xyz, bias, 3);
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factor = mix(a, b, (xpos.z - 50.) / 5.);
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}*/
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else if (xpos.z < splitmax)
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factor = getShadowFactor(xpos.xyz, bias, 3);
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/* else if (xpos.z < 150.)
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{
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factor = mix(getShadowFactor(xpos.xyz, bias, 3), 1., (xpos.z - 145.) / 5.);
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}*/
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else
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factor = 1.;
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Diff = vec4(factor * NdotL * col, 1.);
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Diff = vec4(factor * NdotL * col, 1.);
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Spec = vec4(factor * Specular, 1.);
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Spec = vec4(factor * Specular, 1.);
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return;
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}
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}
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