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  conversion from double buffer to float arrays  (Read 961 times)
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Offline Middy

Junior Member




Java games rock!


« Posted 2004-07-23 11:31:36 »

well I am going to translate a pair of mouse coords to world coord.. Todo that I need todo this

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            GL11.glGetDouble(GL11.GL_PROJECTION_MATRIX, projection); 
            GL11.glGetDouble(GL11.GL_MODELVIEW_MATRIX, model);
            GL11.glGetInteger(GL11.GL_VIEWPORT, viewPort);


projection,model,viewport are all doublebuffers. But since 0.9?? GLU uses arrays

GLU.gluUnProject

So I need to convert. How do I do that the easiste way?


When do I get my makeMyGameAsILike() extension?
Offline Spasi
« Reply #1 - Posted 2004-07-23 14:09:40 »

You can use glGetFloat to get the matrices as float buffers. Then use FloatBuffer's bulk get to pass the data to float[]s.
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