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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| // | ||
| // GLLItemMesh+OBJExport.m | ||
| // GLLara | ||
| // | ||
| // Created by Torsten Kammer on 19.09.12. | ||
| // Copyright (c) 2012 Torsten Kammer. All rights reserved. | ||
| // | ||
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| import Foundation | ||
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| extension GLLItemMesh { | ||
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| @objc var willLoseDataWhenConvertedToOBJ: Bool { | ||
| return (self.mesh.textures.count > 1) || (self.mesh.textures.count == 1 && self.mesh.textures["diffuseTexture"]?.url == nil) || (self.renderParameters.count > 0) | ||
| } | ||
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| @objc func writeMTL(baseURL: URL) -> String { | ||
| var result = "newmtl material\(meshIndex)\n" | ||
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| // Use only first texture and only if it isn't baked into the model file | ||
| // TODO It's probably possible to extract this texture, but does anyone care? | ||
| if let url = mesh.textures["diffuseTexture"]?.url { | ||
| let baseComponents = baseURL.pathComponents | ||
| let textureComponents = url.pathComponents | ||
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| // Find where the paths diverge | ||
| var commonPathLength = 0 | ||
| for i in 0 ..< min(baseComponents.count, textureComponents.count) { | ||
| if baseComponents[i] != textureComponents[i] { | ||
| break | ||
| } else { | ||
| commonPathLength = i | ||
| } | ||
| } | ||
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| var relativePathComponents: [String] = [] | ||
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| // Add .. for any additional path in the base file | ||
| for _ in commonPathLength ..< baseComponents.count - 1 { | ||
| relativePathComponents.append("..") | ||
| } | ||
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| relativePathComponents.append(contentsOf: textureComponents.dropFirst(commonPathLength)) | ||
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| let relativePath = relativePathComponents.joined(separator: "/") | ||
| result += "map_Kd \(relativePath)\r\n" | ||
| } | ||
| return result | ||
| } | ||
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| @objc func writeOBJ(transformations: UnsafePointer<mat_float16>, baseIndex: Int, includeColors: Bool) -> String { | ||
| return mesh.writeOBJ(transformations: transformations, baseIndex: baseIndex, includeColors: includeColors) | ||
| } | ||
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| } |