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POCamera (LootkAt + Orthogonal projection) doesn't want to work [SlimDX / D3D9]
 

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  1. POCamera (LootkAt + Orthogonal projection) doesn't want to work [SlimDX / D3D9]
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    <p>I don't really understand how "cameras" work with D3D9</p> <p>First, how i set my camera up:</p> <pre><code> public Camera() { this.eye = new Vector3(0.0f, 0.0f, 0.0f); this.lookAt = new Vector3(0.0f, 0.0f, 1.0f); this.up = new Vector3(0.0f, 1.0f, 0.0f); viewMatrix = Matrix.LookAtLH(eye, lookAt, up); projectionMatrix = Matrix.OrthoLH(1 * zoomLevel, 1 * zoomLevel, 0.0f, 1.0f); } </code></pre> <p>And my vertices :</p> <pre><code> vertices = new VertexTexture[] { new VertexTexture() { Position = new Vector4(0.0f, 0.0f, 0.0f, 1.0f), TextureCoord = new Vector2(0.0f, 1.0f) }, new VertexTexture() { Position = new Vector4(0.0f, model.Height, 0.0f, 1.0f), TextureCoord = new Vector2(0.0f, 0.0f) }, new VertexTexture() { Position = new Vector4(model.Width, model.Height, 0.0f, 1.0f), TextureCoord = new Vector2(1.0f, 0.0f) }, new VertexTexture() { Position = new Vector4(model.Width, 0.0f, 0.0f, 1.0f), TextureCoord = new Vector2(1.0f, 1.0f) } }; </code></pre> <p>It works. I can move the camera, zoom, etc.</p> <p>But the cameras properties seems weird to me ! I thought it would be something like:</p> <pre><code> public Camera() { this.eye = new Vector3(0.0f, 0.0f, 1.0f); this.lookAt = new Vector3(0.0f, 0.0f, 0.0f); this.up = new Vector3(0.0f, 1.0f, 0.0f); viewMatrix = Matrix.LookAtLH(eye, lookAt, up); projectionMatrix = Matrix.OrthoLH(1 * zoomLevel, 1 * zoomLevel, 0.1f, 100.0f); } </code></pre> <p>but with that parameters it doesn't work. Same if i change the Z coordinate for my plan (Which need to be set at 0 to work).</p> <p>Now, i try to render other objects. I generate vertices for a sphere (it works fine on D3D 10, a 1 radius sphere generated around (0;0;0) ) but nothing appear on the screen</p> <p>I played with the eye and lookat parameters but i can figure how to make it work, so, what i m doing wrong ?</p>
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