Working on the night mode

resources/shaders/night_fog_skinning.vertex

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+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+attribute vec3 vNormal;
+attribute vec4 aBoneIndices0;
+attribute vec2 aBoneIndices1;
+attribute vec4 aBoneWeights0;
+attribute vec2 aBoneWeights1;
+
+varying vec2 texCoord;
+varying float fogDistance;
+varying vec3 fragViewPos;
+varying vec3 fragNormal;
+
+uniform mat4 ProjectionModelViewMatrix;
+uniform mat4 ModelViewMatrix;
+uniform mat4 uBoneMatrices[64];
+uniform vec3 uPlayerEyePos;
+
+void main()
+{
+	vec4 skinnedPos = vec4(0.0, 0.0, 0.0, 0.0);
+	vec3 skinnedNormal = vec3(0.0, 0.0, 0.0);
+	vec4 originalPos = vec4(vPosition, 1.0);
+	float totalWeight = 0.0;
+
+	if (aBoneWeights0.x > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.x)] * originalPos * aBoneWeights0.x;
+		skinnedNormal += mat3(uBoneMatrices[int(aBoneIndices0.x)]) * vNormal * aBoneWeights0.x;
+		totalWeight += aBoneWeights0.x;
+	}
+	if (aBoneWeights0.y > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.y)] * originalPos * aBoneWeights0.y;
+		skinnedNormal += mat3(uBoneMatrices[int(aBoneIndices0.y)]) * vNormal * aBoneWeights0.y;
+		totalWeight += aBoneWeights0.y;
+	}
+	if (aBoneWeights0.z > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.z)] * originalPos * aBoneWeights0.z;
+		skinnedNormal += mat3(uBoneMatrices[int(aBoneIndices0.z)]) * vNormal * aBoneWeights0.z;
+		totalWeight += aBoneWeights0.z;
+	}
+	if (aBoneWeights0.w > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.w)] * originalPos * aBoneWeights0.w;
+		skinnedNormal += mat3(uBoneMatrices[int(aBoneIndices0.w)]) * vNormal * aBoneWeights0.w;
+		totalWeight += aBoneWeights0.w;
+	}
+	if (aBoneWeights1.x > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices1.x)] * originalPos * aBoneWeights1.x;
+		skinnedNormal += mat3(uBoneMatrices[int(aBoneIndices1.x)]) * vNormal * aBoneWeights1.x;
+		totalWeight += aBoneWeights1.x;
+	}
+	if (aBoneWeights1.y > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices1.y)] * originalPos * aBoneWeights1.y;
+		skinnedNormal += mat3(uBoneMatrices[int(aBoneIndices1.y)]) * vNormal * aBoneWeights1.y;
+		totalWeight += aBoneWeights1.y;
+	}
+
+	if (totalWeight < 0.001) {
+		skinnedPos = originalPos;
+		skinnedNormal = vNormal;
+	}
+
+	vec4 eyePos = ModelViewMatrix * skinnedPos;
+	fogDistance = length(eyePos.xyz - uPlayerEyePos);
+	gl_Position = ProjectionModelViewMatrix * skinnedPos;
+	texCoord = vTexCoord;
+	fragViewPos = eyePos.xyz;
+	fragNormal = mat3(ModelViewMatrix) * skinnedNormal;
+}