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POWhy doesn't Xcode recognize these shaders?
 

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  1. POWhy doesn't Xcode recognize these shaders?
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    <p>I'm trying to teach myself Xcode, Objective-C, iOS app development, and GLSL all at once. (Probably not advisable, I know. ;-) I've been modifying the GLCameraRipple example, and had a lot of success so far! But I got stumped today when I tried to create some new vertex and fragment shaders.</p> <p>The example comes with shaders called "Shader.vsh" and "Shader.fsh". I used File->Duplicate to make copies of them, which I called "Reflection.vsh" and "Reflection.fsh" respectively. The problem is that I can't get Xcode to recognize the new shaders. This code, which loads up the original vertex shader, works just fine:</p> <pre><code>vertShaderPathname = [[NSBundle mainBundle] pathForResource:@"Shader" ofType:@"vsh"]; NSLog(@"Original vertex shader should be here: %@", vertShaderPathname); if (![self compileShader:&amp;vertShader type:GL_VERTEX_SHADER file:vertShaderPathname]) { NSLog(@"Failed to compile original vertex shader"); return NO; } </code></pre> <p>But this code, which tries to load my new "Reflection.vsh" shader, fails. Specifically, the reflectVertShaderPathname string comes back with a value of (null).</p> <pre><code>reflectVertShaderPathname = [[NSBundle mainBundle] pathForResource:@"Reflection" ofType:@"vsh"]; NSLog(@"Reflection vertex shader should be here: %@", reflectVertShaderPathname); if (![self compileShader:&amp;reflectVertShader type:GL_VERTEX_SHADER file:reflectVertShaderPathname]) { NSLog(@"Failed to compile reflection vertex shader"); return NO; } </code></pre> <p>What do I have to do to make this work? I can't even tell where to start: is Xcode failing to include my new shaders in the NSBundle it makes when compiling this for the iPad? What magic voodoo do I have to invoke to convince Xcode to load up my new shaders? (Or am I looking for answers in the wrong place entirely?) Has anyone else run into a similar problem before?</p> <p>Inspecting the "project.pbxproj" file in a text editor, I noticed a section where the shaders are being treated differently:</p> <pre><code>/* Begin PBXResourcesBuildPhase section */ B66E3E2C13E9E79C00D2ACF0 /* Resources */ = { isa = PBXResourcesBuildPhase; buildActionMask = 2147483647; files = ( B66E3E4713E9E79C00D2ACF0 /* Shader.fsh in Resources */, B66E3E4913E9E79C00D2ACF0 /* Shader.vsh in Resources */, B66E3E4F13E9E79C00D2ACF0 /* RippleViewController_iPhone.xib in Resources */, B66E3E5213E9E79C00D2ACF0 /* RippleViewController_iPad.xib in Resources */, B6388B2C141AB58300DA02FB /* Icon-72.png in Resources */, B6388B2D141AB58300DA02FB /* Icon-Small-50.png in Resources */, B6388B2E141AB58300DA02FB /* Icon-Small.png in Resources */, B6388B2F141AB58300DA02FB /* Icon-Small@2x.png in Resources */, B6388B30141AB58300DA02FB /* Icon.png in Resources */, B6388B31141AB58300DA02FB /* Icon@2x.png in Resources */, C3E55C21175C49F9007C299D /* Default-568h@2x.png in Resources */, ); runOnlyForDeploymentPostprocessing = 0; }; /* End PBXResourcesBuildPhase section */ /* Begin PBXSourcesBuildPhase section */ B66E3E2A13E9E79C00D2ACF0 /* Sources */ = { isa = PBXSourcesBuildPhase; buildActionMask = 2147483647; files = ( B66E3E4113E9E79C00D2ACF0 /* main.m in Sources */, B66E3E4513E9E79C00D2ACF0 /* AppDelegate.m in Sources */, B66E3E4C13E9E79C00D2ACF0 /* RippleViewController.m in Sources */, B6670DB413E9FD9F00AEF9EC /* RippleModel.m in Sources */, C359BF4D175EA71C00D801B9 /* Reflection.fsh in Sources */, C359BF4F175EA72A00D801B9 /* Reflection.vsh in Sources */, ); runOnlyForDeploymentPostprocessing = 0; }; /* End PBXSourcesBuildPhase section */ </code></pre> <p>So it looks like "Shader.vsh" is in something called "Resources", and "Reflection.vsh" is in something called "Sources". I assume that's part of the problem. But (a) what does that even mean, and (b) how should I fix it? Is it safe to just edit project.pbxproj in a text editor???</p>
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