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POProblems with Textured Quad's texture showing up black
 

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  1. POProblems with Textured Quad's texture showing up black
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    <p>I'm trying to draw a textured quad in XNA using the sample code from MSDN <a href="http://msdn.microsoft.com/en-us/library/bb464051.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/bb464051.aspx</a></p> <p>but instead of drawing it on XY plane i'm drawing it in XZ plane</p> <p>I initialize that quad with this this.quad = new Quad(Vector3.Zero, Vector3.Up, Vector3.Backward, 1, 1);</p> <p>I've tried almost every combination of Normal and Left vector, no matter where the quad is drawn, the quad is completely black. </p> <p>what am i doing wrong here? is the texture's information lost when i'm passing it around? am i mapping the texture positions wrong? </p> <p>ps: Texture, lighting are enabled.</p> <pre><code>public class Quad { public VertexPositionNormalTexture[] Vertices; public Vector3 Origin; public Vector3 Up; public Vector3 Normal; public Vector3 Left; public Vector3 UpperLeft; public Vector3 UpperRight; public Vector3 LowerLeft; public Vector3 LowerRight; public int[] Indexes; public Quad(Vector3 origin, Vector3 normal, Vector3 up, float width, float height) { this.Vertices = new VertexPositionNormalTexture[4]; this.Indexes = new int[6]; this.Origin = origin; this.Normal = normal; this.Up = up; // Calculate the quad corners this.Left = Vector3.Cross(normal, this.Up); Vector3 uppercenter = (this.Up * height / 2) + origin; this.UpperLeft = uppercenter + (this.Left * width / 2); this.UpperRight = uppercenter - (this.Left * width / 2); this.LowerLeft = this.UpperLeft - (this.Up * height); this.LowerRight = this.UpperRight - (this.Up * height); this.FillVertices(); } private void FillVertices() { Vector2 textureUpperLeft = new Vector2(0.0f, 0.0f); Vector2 textureUpperRight = new Vector2(1.0f, 0.0f); Vector2 textureLowerLeft = new Vector2(0.0f, 1.0f); Vector2 textureLowerRight = new Vector2(1.0f, 1.0f); for (int i = 0; i &lt; this.Vertices.Length; i++) { this.Vertices[i].Normal = this.Normal; } this.Vertices[0].Position = this.LowerLeft; this.Vertices[0].TextureCoordinate = textureLowerLeft; this.Vertices[1].Position = this.UpperLeft; this.Vertices[1].TextureCoordinate = textureUpperLeft; this.Vertices[2].Position = this.LowerRight; this.Vertices[2].TextureCoordinate = textureLowerRight; this.Vertices[3].Position = this.UpperRight; this.Vertices[3].TextureCoordinate = textureUpperRight; this.Indexes[0] = 0; this.Indexes[1] = 1; this.Indexes[2] = 2; this.Indexes[3] = 2; this.Indexes[4] = 1; this.Indexes[5] = 3; } } </code></pre> <p>my draw method:</p> <pre><code> graphicsDevice.BlendState = BlendState.AlphaBlend; Effect.World = Matrix.Identity; Effect.View = Camera.View; Effect.Projection = Camera.Projection; Effect.TextureEnabled = true; Effect.Texture = OilTexture; Effect.EnableDefaultLighting(); Effect.PreferPerPixelLighting = true; foreach (EffectPass pass in oilEffect.CurrentTechnique.Passes) { pass.Apply(); graphicsDevice.DrawUserIndexedPrimitives&lt;VertexPositionNormalTexture&gt; (PrimitiveType.TriangleList, Vertices, 0, 4, Indexes, 0, 2); } </code></pre> <p>--i solved my problem. something went wrong when i was passing the texture2d across 3 places, now i'm drawing it from the main draw and the texture shows up fine now.</p>
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    1. USKaris
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      1. POProblems with Textured Quad's texture showing up black
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      1. VTUpMod
    1. COYou say that lighting is enabled, but have you set up a light that will illuminate the quad? Please post the code that renders the quad.
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      1. POProblems with Textured Quad's texture showing up black
      1. USCole Campbell
    2. COCan you please post your solution as an answer and accept it, instead of editing your question. This will remove it from the unanswered list for everyone.
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      1. POProblems with Textured Quad's texture showing up black
      1. USAdam Wenger
 

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