Method bindToGpu

RenderSystems/GLSupport/src/OgreGLVertexArrayObject.cpp:102–133

    }

    void GLVertexArrayObject::bindToGpu(GLRenderSystemCommon* rs,
                                        VertexBufferBinding* vertexBufferBinding,
                                        size_t vertexStart)
    {
        mAttribsBound.clear();
        mInstanceAttribsBound.clear();

        for (const auto& elem : mElementList)
        {
            uint16 source = elem.getSource();

            if (!vertexBufferBinding->isBufferBound(source))
                continue; // Skip unbound elements

            VertexElementSemantic sem = elem.getSemantic();
            unsigned short elemIndex = elem.getIndex();

            uint32 attrib = (uint32)GLSLProgramCommon::getFixedAttributeIndex(sem, elemIndex);

            const HardwareVertexBufferSharedPtr& vertexBuffer = vertexBufferBinding->getBuffer(source);

            mAttribsBound.push_back(std::make_pair(attrib, vertexBuffer.get()));

            rs->bindVertexElementToGpu(elem, vertexBuffer, vertexStart);

            if (vertexBuffer->isInstanceData())
                mInstanceAttribsBound.push_back(attrib);
        }

        mVertexStart = vertexStart;
        mNeedsUpdate = false;
    }
}