forked from Mirrorlandia_minetest/minetest
Fix missing shadows when sun tilt is zero
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@ -392,7 +392,7 @@ void main(void)
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float distance_rate = (1.0 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 10.0));
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if (max(abs(posLightSpace.x - 0.5), abs(posLightSpace.y - 0.5)) > 0.5)
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distance_rate = 0.0;
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float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z),0.0);
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float f_adj_shadow_strength = max(adj_shadow_strength - mtsmoothstep(0.9, 1.1, posLightSpace.z),0.0);
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if (distance_rate > 1e-7) {
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@ -241,7 +241,7 @@ void main(void)
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float pFactor = getPerspectiveFactor(getRelativePosition(m_ShadowViewProj * mWorld * shadow_pos));
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if (f_normal_length > 0.0) {
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nNormal = normalize(vNormal);
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cosLight = dot(nNormal, -v_LightDirection);
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cosLight = max(1e-5, dot(nNormal, -v_LightDirection));
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float sinLight = pow(1 - pow(cosLight, 2.0), 0.5);
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normalOffsetScale = 2.0 * pFactor * pFactor * sinLight * min(f_shadowfar, 500.0) /
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xyPerspectiveBias1 / f_textureresolution;
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@ -393,7 +393,7 @@ void main(void)
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float distance_rate = (1.0 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 10.0));
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if (max(abs(posLightSpace.x - 0.5), abs(posLightSpace.y - 0.5)) > 0.5)
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distance_rate = 0.0;
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float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z),0.0);
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float f_adj_shadow_strength = max(adj_shadow_strength - mtsmoothstep(0.9, 1.1, posLightSpace.z),0.0);
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if (distance_rate > 1e-7) {
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@ -146,7 +146,7 @@ void main(void)
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float pFactor = getPerspectiveFactor(getRelativePosition(m_ShadowViewProj * mWorld * inVertexPosition));
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if (f_normal_length > 0.0) {
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nNormal = normalize(vNormal);
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cosLight = dot(nNormal, -v_LightDirection);
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cosLight = max(1e-5, dot(nNormal, -v_LightDirection));
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float sinLight = pow(1 - pow(cosLight, 2.0), 0.5);
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normalOffsetScale = 0.1 * pFactor * pFactor * sinLight * min(f_shadowfar, 500.0) /
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xyPerspectiveBias1 / f_textureresolution;
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