model.py 文件源码

def load(shape,vertex_array):
        destination = vertex_array[gx.VA_PTNMTXIDX.name]
        vertex_index = 0
        matrix_table = numpy.zeros(10,numpy.uint32)

        for batch in shape.batches:
            source = numpy.concatenate([primitive.vertices[gx.VA_PTNMTXIDX.name] for primitive in batch.primitives])
            source //= 3

            for i,index in enumerate(batch.matrix_table):
                if index == 0xFFFF: continue
                matrix_table[i] = index

            length = sum(len(primitive.vertices) for primitive in batch.primitives)
            numpy.take(matrix_table,source,0,destination[vertex_index:vertex_index + length])
            vertex_index += length

        glEnableVertexAttribArray(MATRIX_INDEX_ATTRIBUTE_LOCATION)
        vertex_type = vertex_array.dtype
        stride = vertex_type.itemsize
        offset = vertex_type.fields[gx.VA_PTNMTXIDX.name][1]
        glVertexAttribIPointer(MATRIX_INDEX_ATTRIBUTE_LOCATION,1,GL_UNSIGNED_INT,stride,GLvoidp(offset))