ctx->Const.MaxTransformFeedbackBuffers = MAX_FEEDBACK_BUFFERS;
ctx->Const.MaxTransformFeedbackSeparateComponents = 4 * MAX_FEEDBACK_ATTRIBS;
ctx->Const.MaxTransformFeedbackInterleavedComponents = 4 * MAX_FEEDBACK_ATTRIBS;
+ ctx->Const.MaxVertexStreams = 1;
/** GL_ARB_uniform_buffer_object */
ctx->Const.MaxCombinedUniformBlocks = 36;