Set a UV0 for a texture

[inveders]

Hi,
I have to set a texture, with a uv0 required. But when I try to create the VertexBuffer I have an error like : "At least one buffer slot was never assigned to an attribute. java.lang.IllegalStateException: Couldn't create VertexBuffer" However, I have well put my VertexBuffer.VertexAttribute.UV0. According to you, where is the problem with my vertexUv? Why I can't create my VertexBuffer?

data class UV(val x: Float, val y: Float)

fun ByteBuffer.putUv(v: UV): ByteBuffer {
            putFloat(v.x)
            putFloat(v.y)
            return this
        }

val vertexUv = ByteBuffer.allocate(6*2*8)
            // It is important to respect the native byte order
            //Order in my Indice buffer was 0,1,2,0,2,3
            .order(ByteOrder.nativeOrder())
            .putUv(UV(0f,0f))
            .putUv(UV(0f,1f))
            .putUv(UV(1f,1f))
            .putUv(UV(0f,0f))
            .putUv(UV(1f,1f))
            .putUv(UV(1f,0f))
            // Make sure the cursor is pointing in the right place in the byte buffer
            .flip()


// Declare the layout of our mesh
            vertexBuffer = VertexBuffer.Builder()
                .bufferCount(2)
                .vertexCount(6)
                // Because we interleave position and color data we must specify offset and stride
                // We could use de-interleaved data by declaring two buffers and giving each
                // attribute a different buffer index
                .attribute(
                    VertexBuffer.VertexAttribute.POSITION,
                    0,
                    VertexBuffer.AttributeType.FLOAT3,
                    0,
                    12
                )
                .attribute(
                    VertexBuffer.VertexAttribute.COLOR,
                    1,
                    VertexBuffer.AttributeType.UBYTE4,
                    0,
                    4
                )
                .attribute(VertexBuffer.VertexAttribute.UV0, 2, VertexBuffer.AttributeType.FLOAT2, 0, 16)
                .build(mEngine)

vertexBuffer.setBufferAt(mEngine, 0, vertexData)
vertexBuffer.setBufferAt(mEngine, 1, vertexColor)
vertexBuffer.setBufferAt(mEngine, 2, vertextUv)
                      

[romainguy]

You declared a vertex buffers with 3 sub-buffers (.bufferCount(2)) but you are trying to use 3.

[inveders]

Oh Yessss Thanks you @romainguy !!