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  Indexed Interleaved VBO  (Read 1859 times)
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Online Riven
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« Posted 2006-03-28 14:31:04 »

I have 2 VBOs, one for the interleaved geometry (T+N+V) and one for the indices.

the code looks like this:

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         int sizeof = 4;

         glEnable(GL_VERTEX_ARRAY);
         glEnable(GL_TEXTURE_COORD_ARRAY);
         glEnable(GL_NORMAL_ARRAY);

         // setup of vboData and vboIndices
         // these work fine, as it works with glDrawArrays

         glBindBufferARB(GL_ARRAY_BUFFER_ARB, vboData.pointer);
         glInterleavedArrays(GL_T2F_N3F_V3F, 0, 0);

         glVertexPointer(3,   GL_FLOAT, (2 + 3 + 3) * sizeof, (2 + 3) * sizeof);
         glNormalPointer(     GL_FLOAT, (2 + 3 + 3) * sizeof, (2) * sizeof);
         glTexCoordPointer(2, GL_FLOAT, (2 + 3 + 3) * sizeof, (0) * sizeof);

         glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, vboIndices.pointer);
         System.out.println("errorPre  = " + glGetError());
         glDrawElements(GL_QUADS, vboIndices.elements, vboIndices.format, 0);
         System.out.println("errorPost = " + glGetError());


Output:
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errorPre  = 0
errorPost = 1280


1280 = INVALID_ENUM
This should only be 1280 when "mode" (GL_QUADS) is invalid, according to the GL-spec.


Could anybody help me on this?

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