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  Vertex array Help  (Read 1048 times)
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Offline shadejmg

Senior Newbie




Java Rocks!


« Posted 2003-08-03 20:18:09 »

Hi all,

Ive been working through a copy of the "red book" trying to update my code... and i come to the topic of using arrays.. great they seem like a really good idea.. problem is the commands dont seem to map perfectly from the gl spec to jogl..  

Has anyone got a jogl example of defining a shape using an array  ?


Thanks,
J.

A thousand monkeys on a thousand computers .. typing away randomly .. eventually one will create a great java game! Smiley
Offline DavidYazel

Junior Devvie




Java games rock!


« Reply #1 - Posted 2003-08-03 23:42:57 »

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            if (colors3f != null) {
                gl.glEnableClientState(gl.GL_COLOR_ARRAY);
                gl.glColorPointer(3, gl.GL_FLOAT, 0, colors3f);
            } else if (colors4f != null) {
                gl.glEnableClientState(gl.GL_COLOR_ARRAY);
                gl.glColorPointer(4, gl.GL_FLOAT, 0, colors4f);
            } else {
                gl.glDisableClientState(gl.GL_COLOR_ARRAY);
                gl.glColor3f(1,1,1);
            }

            if (normals != null) {
                gl.glEnableClientState(gl.GL_NORMAL_ARRAY);
                gl.glNormalPointer(gl.GL_FLOAT, 0, normals);
            } else {
                gl.glDisableClientState(gl.GL_NORMAL_ARRAY);
            }

            if (vectors != null) {
                gl.glEnableClientState(gl.GL_VERTEX_ARRAY);
                gl.glVertexPointer(3, gl.GL_FLOAT, 0, vectors);
            }

            if (texCoords2D != null) {
                gl.glEnableClientState(gl.GL_TEXTURE_COORD_ARRAY);
                gl.glTexCoordPointer(2, gl.GL_FLOAT, 0, texCoords2D);
            } else {
                gl.glDisableClientState(gl.GL_TEXTURE_COORD_ARRAY);
            }

            if (texCoords3D != null) {
                gl.glEnableClientState(gl.GL_TEXTURE_COORD_ARRAY);
//                gl.glTexCoordPointer(3, gl.GL_FLOAT, 0, texCoords3D);
            }

            gl.glDrawArrays(mode, 0, numVertices);

David Yazel
Xith3D Project Founder
http://xith3d.dev.java.net

It may look complicated, but in the end it is just a bunch of triangles
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