custommods

.minecraft/shaderpacks/ComplementaryShaders_v4.6/shaders/lib/util/spaceConversion.glsl

@@ -0,0 +1,20 @@
+#define diagonal3(m) vec3((m)[0].x, (m)[1].y, m[2].z)
+#define projMAD(m, v) (diagonal3(m) * (v) + (m)[3].xyz)
+
+vec3 ScreenToView(vec3 pos) {
+	vec4 iProjDiag = vec4(gbufferProjectionInverse[0].x,
+						  gbufferProjectionInverse[1].y,
+						  gbufferProjectionInverse[2].zw);
+    vec3 p3 = pos * 2.0 - 1.0;
+    vec4 viewPos = iProjDiag * p3.xyzz + gbufferProjectionInverse[3];
+    return viewPos.xyz / viewPos.w;
+}
+
+vec3 ViewToWorld(vec3 pos) {
+	return mat3(gbufferModelViewInverse) * pos + gbufferModelViewInverse[3].xyz;
+}
+
+vec3 WorldToShadow(vec3 pos) {
+	vec3 shadowpos = mat3(shadowModelView) * pos + shadowModelView[3].xyz;
+	return projMAD(shadowProjection, shadowpos);
+}